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Ghafoor MH, Song BL, Zhou L, Qiao ZY, Wang H. Self-Assembly of Peptides as an Alluring Approach toward Cancer Treatment and Imaging. ACS Biomater Sci Eng 2024; 10:2841-2862. [PMID: 38644736 DOI: 10.1021/acsbiomaterials.4c00491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Cancer is a severe threat to humans, as it is the second leading cause of death after cardiovascular diseases and still poses the biggest challenge in the world of medicine. Due to its higher mortality rates and resistance, it requires a more focused and productive approach to provide the solution for it. Many therapies promising to deliver favorable results, such as chemotherapy and radiotherapy, have come up with more negatives than positives. Therefore, a new class of medicinal solutions and a more targeted approach is of the essence. This review highlights the alluring properties, configurations, and self-assembly of peptide molecules which benefit the traditional approach toward cancer therapy while sparing the healthy cells in the process. As targeted drug delivery systems, self-assembled peptides offer a wide spectrum of conjugation, biocompatibility, degradability-controlled responsiveness, and biomedical applications, including cancer treatment and cancer imaging.
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Affiliation(s)
- Muhammad Hamza Ghafoor
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Ben-Li Song
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Lei Zhou
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
| | - Zeng-Ying Qiao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Hao Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China
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2
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Pohl C, Effantin G, Kandiah E, Meier S, Zeng G, Streicher W, Segura DR, Mygind PH, Sandvang D, Nielsen LA, Peters GHJ, Schoehn G, Mueller-Dieckmann C, Noergaard A, Harris P. pH- and concentration-dependent supramolecular assembly of a fungal defensin plectasin variant into helical non-amyloid fibrils. Nat Commun 2022; 13:3162. [PMID: 35672293 PMCID: PMC9174238 DOI: 10.1038/s41467-022-30462-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 04/28/2022] [Indexed: 02/04/2023] Open
Abstract
Self-assembly and fibril formation play important roles in protein behaviour. Amyloid fibril formation is well-studied due to its role in neurodegenerative diseases and characterized by refolding of the protein into predominantly β-sheet form. However, much less is known about the assembly of proteins into other types of supramolecular structures. Using cryo-electron microscopy at a resolution of 1.97 Å, we show that a triple-mutant of the anti-microbial peptide plectasin, PPI42, assembles into helical non-amyloid fibrils. The in vitro anti-microbial activity was determined and shown to be enhanced compared to the wildtype. Plectasin contains a cysteine-stabilised α-helix-β-sheet structure, which remains intact upon fibril formation. Two protofilaments form a right-handed protein fibril. The fibril formation is reversible and follows sigmoidal kinetics with a pH- and concentration dependent equilibrium between soluble monomer and protein fibril. This high-resolution structure reveals that α/β proteins can natively assemble into fibrils. Here the authors report the cryo-EM structure of a triple-mutant of the anti-microbial peptide plectasin, PPI42, assembling in a pH- and concentration dependent manner into helical non-amyloid fibrils. The fibrils formation is reversible, and follows a sigmoidal kinetics. The fibrils adopt a right-handed helical superstructure composed by two protofilaments, stabilized by an outer hydrophobic ring and an inner hydrophobic centre. These findings reveal that α/β proteins can natively assemble into fibrils.
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3
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Warren JP, Miles DE, Kapur N, Wilcox RK, Beales PA. Hydrodynamic Mixing Tunes the Stiffness of Proteoglycan-Mimicking Physical Hydrogels. Adv Healthc Mater 2021; 10:e2001998. [PMID: 33943034 DOI: 10.1002/adhm.202001998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 02/23/2021] [Indexed: 11/09/2022]
Abstract
Self-assembling hydrogels are promising materials for regenerative medicine and tissue engineering. However, designing hydrogels that replicate the 3-4 order of magnitude variation in soft tissue mechanics remains a major challenge. Here hybrid hydrogels are investigated formed from short self-assembling β-fibril peptides, and the glycosaminoglycan chondroitin sulfate (CS), chosen to replicate physical aspects of proteoglycans, specifically natural aggrecan, which provides structural mechanics to soft tissues. Varying the peptide:CS compositional ratio (1:2, 1:10, or 1:20) can tune the mechanics of the gel by one to two orders of magnitude. In addition, it is demonstrated that at any fixed composition, the gel shear modulus can be tuned over approximately two orders of magnitude through varying the initial vortex mixing time. This tuneability arises due to changes in the mesoscale structure of the gel network (fibril width, length, and connectivity), giving rise to both shear-thickening and shear-thinning behavior. The resulting hydrogels range in shear elastic moduli from 0.14 to 220 kPa, mimicking the mechanical variability in a range of soft tissues. The high degree of discrete tuneability of composition and mechanics in these hydrogels makes them particularly promising for matching the chemical and mechanical requirements of different applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- James P. Warren
- School of Chemistry University of Leeds Leeds LS2 9JT UK
- School of Mechanical Engineering University of Leeds Leeds LS2 9JT UK
- Institute of Medical and Biological Engineering University of Leeds Leeds LS2 9JT UK
| | - Danielle E. Miles
- School of Chemistry University of Leeds Leeds LS2 9JT UK
- School of Mechanical Engineering University of Leeds Leeds LS2 9JT UK
- Institute of Medical and Biological Engineering University of Leeds Leeds LS2 9JT UK
| | - Nikil Kapur
- School of Mechanical Engineering University of Leeds Leeds LS2 9JT UK
| | - Ruth K. Wilcox
- School of Mechanical Engineering University of Leeds Leeds LS2 9JT UK
- Institute of Medical and Biological Engineering University of Leeds Leeds LS2 9JT UK
| | - Paul A. Beales
- School of Chemistry University of Leeds Leeds LS2 9JT UK
- Astbury Centre for Structural Biology University of Leeds Leeds LS2 9JT UK
- Bragg Centre for Materials Research University of Leeds Leeds LS2 9JT UK
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4
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Seroski DT, Dong X, Wong KM, Liu R, Shao Q, Paravastu AK, Hall CK, Hudalla GA. Charge guides pathway selection in β-sheet fibrillizing peptide co-assembly. Commun Chem 2020; 3:172. [PMID: 36703436 PMCID: PMC9814569 DOI: 10.1038/s42004-020-00414-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/15/2020] [Indexed: 01/29/2023] Open
Abstract
Peptide co-assembly is attractive for creating biomaterials with new forms and functions. Emergence of these properties depends on the peptide content of the final assembled structure, which is difficult to predict in multicomponent systems. Here using experiments and simulations we show that charge governs content by affecting propensity for self- and co-association in binary CATCH(+/-) peptide systems. Equimolar mixtures of CATCH(2+/2-), CATCH(4+/4-), and CATCH(6+/6-) formed two-component β-sheets. Solid-state NMR suggested the cationic peptide predominated in the final assemblies. The cationic-to-anionic peptide ratio decreased with increasing charge. CATCH(2+) formed β-sheets when alone, whereas the other peptides remained unassembled. Fibrillization rate increased with peptide charge. The zwitterionic CATCH parent peptide, "Q11", assembled slowly and only at decreased simulation temperature. These results demonstrate that increasing charge draws complementary peptides together faster, favoring co-assembly, while like-charged molecules repel. We foresee these insights enabling development of co-assembled peptide biomaterials with defined content and predictable properties.
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Affiliation(s)
- Dillon T Seroski
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Xin Dong
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Kong M Wong
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA
| | - Qing Shao
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Anant K Paravastu
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Carol K Hall
- Department of Chemical and Biomolecular Engineering, North Carolina State University, 911 Partners Way, Raleigh, NC, 27695, USA
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, 32611, USA.
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5
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De Leon Rodriguez LM, Hemar Y. Prospecting the applications and discovery of peptide hydrogels in food. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.07.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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6
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Levin A, Hakala TA, Schnaider L, Bernardes GJL, Gazit E, Knowles TPJ. Biomimetic peptide self-assembly for functional materials. Nat Rev Chem 2020. [DOI: 10.1038/s41570-020-0215-y] [Citation(s) in RCA: 162] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Martin AD, Chua SW, Au CG, Stefen H, Przybyla M, Lin Y, Bertz J, Thordarson P, Fath T, Ke YD, Ittner LM. Peptide Nanofiber Substrates for Long-Term Culturing of Primary Neurons. ACS APPLIED MATERIALS & INTERFACES 2018; 10:25127-25134. [PMID: 29979564 DOI: 10.1021/acsami.8b07560] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The culturing of primary neurons represents a central pillar of neuroscience research. Primary neurons are derived directly from brain tissue and recapitulate key aspects of neuronal development in an in vitro setting. Unlike neural stem cells, primary neurons do not divide; thus, initial attachment of cells to a suitable substrate is critical. Commonly used polylysine substrates can suffer from batch variability owing to their polymeric nature. Herein, we report the use of chemically well-defined, self-assembling tetrapeptides as substrates for primary neuronal culture. These water-soluble peptides assemble into fibers which facilitate adhesion and development of primary neurons, their long-term survival (>40 days), synaptic maturation, and electrical activity. Furthermore, these substrates are permissive toward neuronal transfection and transduction which, coupled with their uniformity and reproducible nature, make them suitable for a wide variety of applications in neuroscience.
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Affiliation(s)
- Adam D Martin
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science & Technology , University of New South Wales , Sydney , NSW , 2052 , Australia
| | - Sook Wern Chua
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Carol G Au
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Holly Stefen
- Neurodegeneration and Repair Unit, School of Medical Sciences and Neuronal Culture Core Facility , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Magdalena Przybyla
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Yijun Lin
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Josefine Bertz
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Pall Thordarson
- School of Chemistry, The Australian Centre for Nanomedicine and the ARC Centre of Excellence in Convergent Bio-Nano Science & Technology , University of New South Wales , Sydney , NSW , 2052 , Australia
| | - Thomas Fath
- Neurodegeneration and Repair Unit, School of Medical Sciences and Neuronal Culture Core Facility , University of New South Wales , Sydney , NSW 2052 , Australia
- Dementia Research Centre, Faculty of Medicine and Health Sciences , Macquarie University , Sydney , NSW 2109 , Australia
| | - Yazi D Ke
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
| | - Lars M Ittner
- Dementia Research Unit, School of Medical Sciences, Faculty of Medicine , University of New South Wales , Sydney , NSW 2052 , Australia
- Dementia Research Centre, Faculty of Medicine and Health Sciences , Macquarie University , Sydney , NSW 2109 , Australia
- Neuroscience Research Australia , Sydney , NSW 2031 , Australia
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8
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Production of the recombinant antimicrobial peptide UBI 18-35 in Escherichia coli. Protein Expr Purif 2018; 143:38-44. [DOI: 10.1016/j.pep.2017.10.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/18/2017] [Accepted: 10/18/2017] [Indexed: 11/21/2022]
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9
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Majid A, Patil-Sen Y, Ahmed W, Sen T. Tunable Self-Assembled Peptide Structure: A Novel Approach to Design Dual-Use Biological Agents. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.matpr.2017.01.190] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Du X, Zhou J, Shi J, Xu B. Supramolecular Hydrogelators and Hydrogels: From Soft Matter to Molecular Biomaterials. Chem Rev 2015; 115:13165-307. [PMID: 26646318 PMCID: PMC4936198 DOI: 10.1021/acs.chemrev.5b00299] [Citation(s) in RCA: 1239] [Impact Index Per Article: 137.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Indexed: 12/19/2022]
Abstract
In this review we intend to provide a relatively comprehensive summary of the work of supramolecular hydrogelators after 2004 and to put emphasis particularly on the applications of supramolecular hydrogels/hydrogelators as molecular biomaterials. After a brief introduction of methods for generating supramolecular hydrogels, we discuss supramolecular hydrogelators on the basis of their categories, such as small organic molecules, coordination complexes, peptides, nucleobases, and saccharides. Following molecular design, we focus on various potential applications of supramolecular hydrogels as molecular biomaterials, classified by their applications in cell cultures, tissue engineering, cell behavior, imaging, and unique applications of hydrogelators. Particularly, we discuss the applications of supramolecular hydrogelators after they form supramolecular assemblies but prior to reaching the critical gelation concentration because this subject is less explored but may hold equally great promise for helping address fundamental questions about the mechanisms or the consequences of the self-assembly of molecules, including low molecular weight ones. Finally, we provide a perspective on supramolecular hydrogelators. We hope that this review will serve as an updated introduction and reference for researchers who are interested in exploring supramolecular hydrogelators as molecular biomaterials for addressing the societal needs at various frontiers.
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Affiliation(s)
- Xuewen Du
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Jie Zhou
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Junfeng Shi
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
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11
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Soluble expression, purification and functional characterization of a coil peptide composed of a positively charged and hydrophobic motif. Amino Acids 2015; 48:567-77. [PMID: 26459292 DOI: 10.1007/s00726-015-2113-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 10/05/2015] [Indexed: 10/22/2022]
Abstract
A de novo heterodimeric coiled-coil system formed by the association of two synthetic peptides, the Ecoil and Kcoil, has been previously designed and proven to be an excellent and versatile tool for various biotechnology applications. However, based on the challenges encountered during its chemical synthesis, the Kcoil peptide has been designated as a "difficult peptide". In this study, we explore the expression of the Kcoil peptide by a bacterial system as well as its subsequent purification. The maximum expression level was observed when the peptide was fused to thioredoxin and the optimized purification process consisted of three chromatographic steps: immobilized-metal affinity chromatography followed by cation-exchange chromatography and, finally, a reverse-phase high-performance liquid chromatography. This entire process led to a final volumetric production yield of 1.5 mg of pure Kcoil peptide per liter of bacterial culture, which represents a significant step towards the cost-effective production and application of coiled-coil motifs. Our results thus demonstrate for the first time that bacterial production is a viable alternative to the chemical synthesis of de novo designed coil peptides.
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12
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Zerfaß C, Braukmann S, Nietzsche S, Hobe S, Paulsen H. High yield recombinant production of a self-assembling polycationic peptide for silica biomineralization. Protein Expr Purif 2015; 108:1-8. [DOI: 10.1016/j.pep.2014.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 12/13/2022]
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13
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Rizzi LG, Head DA, Auer S. Universality in the morphology and mechanics of coarsening amyloid fibril networks. PHYSICAL REVIEW LETTERS 2015; 114:078102. [PMID: 25763974 DOI: 10.1103/physrevlett.114.078102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Indexed: 06/04/2023]
Abstract
Peptide hydrogels have important applications as biomaterials and in nanotechnology, but utilization often depends on their mechanical properties for which we currently have no predictive capability. Here we use a peptide model to simulate the formation of percolating amyloid fibril networks and couple these to the elastic network theory to determine their mechanical properties. We find that the time variation of network length scales can be collapsed onto master curves by using a time scaling function that depends on the peptide interaction anisotropy. The same scaling applies to network mechanics, revealing a nonmonotonic dependence of the shear modulus with time. Our structure-function relationship between the peptide building blocks, network morphology, and network mechanical properties can aid in the design of amyloid fibril networks with tailored mechanical properties.
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Affiliation(s)
- L G Rizzi
- School of Chemistry, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - D A Head
- School of Computing, University of Leeds, LS2 9JT Leeds, United Kingdom
| | - S Auer
- School of Chemistry, University of Leeds, LS2 9JT Leeds, United Kingdom
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14
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Sonmez C, Nagy KJ, Schneider JP. Design of self-assembling peptide hydrogelators amenable to bacterial expression. Biomaterials 2014; 37:62-72. [PMID: 25453938 DOI: 10.1016/j.biomaterials.2014.10.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 10/02/2014] [Indexed: 12/26/2022]
Abstract
Hydrogels formed from self-assembling peptides are finding use in tissue engineering and drug delivery applications. Given the notorious difficulties associated with producing self-assembling peptides by recombinant expression, most are typically prepared by chemical synthesis. Herein, we report the design of a family of self-assembling β-hairpin peptides amenable to efficient production using an optimized bacterial expression system. Expressing peptides, EX1, EX2 and EX3 contain identical eight-residue amphiphilic β-strands connected by varying turn sequences that are responsible for ensuring chain reversal and the proper intramolecular folding and consequent self-assembly of the peptide into a hydrogel network under physiological conditions. EX1 was initially used to establish and optimize the bacterial expression system by which all the peptides could be eventually individually expressed. Expression clones were designed to allow exploration of possible fusion partners and investigate both enzymatic and chemical cleavage as means to liberate the target peptide. A systematic analysis of possible expression systems followed by fermentation optimization lead to a system in which all three peptides could be expressed as fusions with BAD-BH3, the BH3 domain of the proapoptotic BAD (Bcl-2 Associated Death) Protein. CNBr cleavage followed by purification afforded 50, 31, and 15 mg/L yields of pure EX1, EX2 and EX3, respectively. CD spectroscopy, TEM, and rheological analysis indicate that these peptides fold and assembled into well-defined fibrils that constitute hydrogels having shear-thin/recovery properties.
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Affiliation(s)
- Cem Sonmez
- National Cancer Institute, Center for Cancer Research, Frederick, MD 21701, United States; University of Delaware, Department of Chemistry and Biochemistry, Newark, DE 19716, United States
| | - Katelyn J Nagy
- National Cancer Institute, Center for Cancer Research, Frederick, MD 21701, United States; University of Delaware, Department of Chemistry and Biochemistry, Newark, DE 19716, United States
| | - Joel P Schneider
- National Cancer Institute, Center for Cancer Research, Frederick, MD 21701, United States.
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15
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Ideta A, Aoyagi Y, Tsuchiya K, Nakamura Y, Hayama K, Shirasawa A, Sakaguchi K, Tominaga N, Nishimiya Y, Tsuda S. Prolonging hypothermic storage (4 C) of bovine embryos with fish antifreeze protein. J Reprod Dev 2014; 61:1-6. [PMID: 25311466 PMCID: PMC4354224 DOI: 10.1262/jrd.2014-073] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Embryos obtained via superovulation are necessary for mammalian artificial reproduction, and viability is a key determinant of success. Nonfreezing storage at 4 C is possible, but currently used storage solutions can maintain embryo viability for only 24-48 h. Here we found that 10 mg/ml antifreeze protein (AFP) dissolved in culture medium 199 with 20% (v/v) fetal bovine serum and 25 mM HEPES could keep bovine embryos alive for 10 days at 4 C. We used a recombinant AFP isolated from the notched-fin eelpout (Zoarces elongatus Kner). Photomicroscopy indicated that the AFP-embryo interaction was enhanced at 37 C. Embryos pre-warmed with the AFP solution at 37 C for 60 min maintained high viability, whereas those that were not pre-warmed could live no longer than 7 days. Thus, short-term storage of bovine embryos was achieved by a combination of AFP-containing medium and controlled pre-warming.
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Affiliation(s)
- Atsushi Ideta
- Research and Development Group, Zen-noh Embryo Transfer (ET) Center, Hokkaido 080-1407, Japan
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16
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Dimitrijev Dwyer M, Brech M, Yu L, Middelberg AP. Intensified expression and purification of a recombinant biosurfactant protein. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2013.10.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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17
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Hao R, Zhang J, Xu T, Huang L, Yao J, Chen X, Shao Z. Characterization and assembly investigation of a dodecapeptide hydrolyzed from the crystalline domain of Bombyx mori silk fibroin. Polym Chem 2013. [DOI: 10.1039/c3py21096k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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18
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Kyle S, Felton SH, McPherson MJ, Aggeli A, Ingham E. Rational molecular design of complementary self-assembling peptide hydrogels. Adv Healthc Mater 2012. [PMID: 23184800 PMCID: PMC3607250 DOI: 10.1002/adhm.201200047] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Stuart Kyle
- Institute of Medical & Biological Engineering, Institute of Molecular & Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
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19
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Prakash A, Parsons SJ, Kyle S, McPherson MJ. Recombinant production of self-assembling β-structured peptides using SUMO as a fusion partner. Microb Cell Fact 2012; 11:92. [PMID: 22759375 PMCID: PMC3512519 DOI: 10.1186/1475-2859-11-92] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 06/08/2012] [Indexed: 12/28/2022] Open
Abstract
Background Self-assembling peptides that form nanostructured hydrogels are important biomaterials for tissue engineering scaffolds. The P11-family of peptides includes, P11-4 (QQRFEWEFEQQ) and the complementary peptides P11-13 (EQEFEWEFEQE) and P11-14 (QQOrnFOrnWOrnFOrnQQ). These form self-supporting hydrogels under physiological conditions (pH 7.4, 140 mM NaCl) either alone (P11-4) or when mixed (P11-13 and P11-14). We report a SUMO-peptide expression strategy suitable for allowing release of native sequence peptide by SUMO protease cleavage. Results We have expressed SUMO-peptide fusion proteins from pET vectors by using autoinduction methods. Immobilised metal affinity chromatography was used to purify the fusion protein, followed by SUMO protease cleavage in water to release the peptides, which were recovered by reverse phase HPLC. The peptide samples were analysed by electrospray mass spectrometry and self-assembly was followed by circular dichroism and transmission electron microscopy. Conclusions The fusion proteins were produced in high yields and the β-structured peptides were efficiently released by SUMO protease resulting in peptides with no additional amino acid residues and with recoveries of 46% to 99%. The peptides behaved essentially the same as chemically synthesised and previously characterised recombinant peptides in self-assembly and biophysical assays.
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Affiliation(s)
- Abhinav Prakash
- Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
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20
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Castro-Martínez C, Luna-Suárez S, Paredes-López O. Overexpression of a modified protein from amaranth seed in Escherichia coli and effect of environmental conditions on the protein expression. J Biotechnol 2012; 158:59-67. [DOI: 10.1016/j.jbiotec.2011.12.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2011] [Revised: 12/12/2011] [Accepted: 12/14/2011] [Indexed: 10/14/2022]
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Kyle S, James KAR, McPherson MJ. Recombinant production of the therapeutic peptide lunasin. Microb Cell Fact 2012; 11:28. [PMID: 22376274 PMCID: PMC3359153 DOI: 10.1186/1475-2859-11-28] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 02/29/2012] [Indexed: 12/26/2022] Open
Abstract
Background Lunasin is a chemopreventive peptide produced in a number of plant species. It comprises a helical region with homology to a region of chromatin binding proteins, an Arg-Gly-Asp cell adhesion motif and eight aspartic acid residues. In vitro studies indicate that lunasin suppresses chemical and oncogene driven transformation of mammalian cells. We have explored efficient recombinant production of lunasin by exploiting the Clostridium thermocellum CipB cellulose binding domain (CBD) as a fusion partner protein. Results We used a pET28 vector to express a CBD-lunasin fusion with a hexahistidine tag and Tobacco Etch Virus protease site, to allow protease-mediated release of native lunasin. Autoinduction in E. coli BL21 (DE3) Star cells achieved expression of 3.35 g/L of CBD-lunasin fusion protein. The final yield of lunasin was 210 mg/L corresponding to 32% of the theoretical yield. Purification by cellulose binding and nickel affinity chromatography were tested with the latter proving more satisfactory. The effects of CBD-lunasin expression on growth and morphology of the E. coli cells were examined by light and electron microscopy revealing an altered morphology in a proportion of cells. Cell division appeared to be inhibited in these cells resulting in elongated, non-septated cells. Conclusions The use of CBD as a fusion partner gave high protein yields by autoinduction, with lunasin release by TEV protease cleavage. With some optimisation this approach could provide a potentially valuable route for production of this therapeutic peptide. Over-expression in the host cells manifest as a cell division defect in a population of the cells, presumably mimicking some aspect of the chemopreventive function observed in mammalian cells.
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Affiliation(s)
- Stuart Kyle
- Astbury Centre for Structural Molecular Biology, Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK
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22
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Hilborn J. In vivo
injectable gels for tissue repair. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2011; 3:589-606. [DOI: 10.1002/wnan.91] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jons Hilborn
- Department of Materials Chemistry, Uppsala University, Uppsala 75121, Sweden
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23
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Kyle S, McPherson MJ, Aggeli A, Ingham E. WITHDRAWN: The effect of molecular design on the physical and biological properties of complementary self-assembling peptides. Biomaterials 2011:S0142-9612(11)00653-3. [PMID: 21723600 DOI: 10.1016/j.biomaterials.2011.05.082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 05/27/2011] [Indexed: 11/16/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Affiliation(s)
- Stuart Kyle
- Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK; Astbury Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, Leeds LS2 9JT, UK; Centre for Molecular Nanoscience, School of Chemistry, Faculty of Mathematics & Physical Sciences, University of Leeds, Leeds LS2 9JT, UK; Institute of Medical & Biological Engineering, University of Leeds, Leeds LS2 9JT, UK
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24
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Vázquez E, Villaverde A. Engineering building blocks for self-assembling protein nanoparticles. Microb Cell Fact 2010; 9:101. [PMID: 21192790 PMCID: PMC3022712 DOI: 10.1186/1475-2859-9-101] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 12/30/2010] [Indexed: 12/14/2022] Open
Abstract
Like natural viruses, manmade protein cages for drug delivery are to be ideally formed by repetitive subunits with self-assembling properties, mimicking viral functions and molecular organization. Naturally formed nanostructures (such as viruses, flagella or simpler protein oligomers) can be engineered to acquire specific traits of interest in biomedicine, for instance through the addition of cell targeting agents for desired biodistribution and specific delivery of associated drugs. However, fully artificial constructs would be highly desirable regarding finest tuning and adaptation to precise therapeutic purposes. Although engineering of protein assembling is still in its infancy, arising principles and promising strategies of protein manipulation point out the rational construction of nanoscale protein cages as a feasible concept, reachable through conventional recombinant DNA technologies and microbial protein production.
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Affiliation(s)
- Esther Vázquez
- Institute for Biotechnology and Biomedicine, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
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25
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Kyle S, Aggeli A, Ingham E, McPherson MJ. Recombinant self-assembling peptides as biomaterials for tissue engineering. Biomaterials 2010; 31:9395-405. [PMID: 20932572 PMCID: PMC3111806 DOI: 10.1016/j.biomaterials.2010.08.051] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Accepted: 08/23/2010] [Indexed: 12/26/2022]
Abstract
Synthetic nanostructures based on self-assembling systems that aim to mimic natural extracellular matrix are now being used as substrates in tissue engineering applications. Peptides are excellent starting materials for the self-assembly process as they can be readily synthesised both chemically and biologically. P₁₁-4 is an 11 amino acid peptide that undergoes triggered self-assembly to form a self-supporting hydrogel. It exists as unimers of random coil conformations in water above pH 7.5 but at low pH adopts an antiparallel β-sheet conformation. It also self-assembles under physiological conditions in a concentration-dependent manner. Here we describe an unimer P₁₁-4 production system and the use of a simple site-directed mutagenesis approach to generate a series of other P₁₁-family peptide expression vectors. We have developed an efficient purification strategy for these peptide biomaterials using a simple procedure involving chemical cleavage with cyanogen bromide then repeated filtration, lyophilisation and wash steps. We report peptide-fusion protein yields of ca. 4.64 g/L and we believe the highest reported recovery of a recombinant self-assembling peptide at 203 mg/L of pure recombinant P₁₁-4. This peptide forms a self-supporting hydrogel under physiological conditions with essentially identical physico-chemical properties to the chemically synthesised peptide. Critically it also displays excellent cytocompatibility when tested with primary human dermal fibroblasts. This study demonstrates that high levels of a series of recombinant self-assembling peptides can be purified using a simple process for applications as scaffolds in tissue engineering.
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Affiliation(s)
- Stuart Kyle
- Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, LS2 9JT, UK
- Astbury Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, LS2 9JT, UK
- Centre for Molecular Nanoscience, School of Chemistry, University of Leeds, LS2 9JT, UK
- Institute of Medical and Biological Engineering, University of Leeds, LS2 9JT, UK
| | - Amalia Aggeli
- Centre for Molecular Nanoscience, School of Chemistry, University of Leeds, LS2 9JT, UK
| | - Eileen Ingham
- Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, LS2 9JT, UK
- Institute of Medical and Biological Engineering, University of Leeds, LS2 9JT, UK
| | - Michael J. McPherson
- Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds, LS2 9JT, UK
- Astbury Centre for Structural Molecular Biology, Faculty of Biological Sciences, University of Leeds, LS2 9JT, UK
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26
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Collier JH, Rudra JS, Gasiorowski JZ, Jung JP. Multi-component extracellular matrices based on peptide self-assembly. Chem Soc Rev 2010; 39:3413-24. [PMID: 20603663 PMCID: PMC3387682 DOI: 10.1039/b914337h] [Citation(s) in RCA: 175] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Extracellular matrices (ECMs) are challenging design targets for materials synthesis because they serve multiple biological roles, and they are composed of multiple molecular constituents. In addition, their composition and activities are dynamic and variable between tissues, and they are difficult to study mechanistically in physiological contexts. Nevertheless, the design of synthetic ECMs is a central consideration in applications such as regenerative medicine and 3D cell culture. In order to produce synthetic matrices having both multi-component construction and high levels of compositional definition, strategies based on molecular self-assembly are receiving increasing interest. These approaches are described in this tutorial review and compared with the structures and processes in native ECMs that serve as their inspiration.
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Affiliation(s)
- Joel H Collier
- Department of Surgery, University of Chicago, 5841 S. Maryland Ave., MC 5032, Chicago, IL 60637, USA.
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27
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Moers APHA, Wolbert EJH, de Wolf FA, Werten MWT. Secreted production of self-assembling peptides in Pichia pastoris by fusion to an artificial highly hydrophilic protein. J Biotechnol 2010; 146:66-73. [PMID: 20097239 DOI: 10.1016/j.jbiotec.2010.01.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 01/05/2010] [Accepted: 01/15/2010] [Indexed: 10/19/2022]
Abstract
The undecapeptides CH(3)CO-Gln-Gln-Arg-Phe-Gln-Trp-Gln-Phe-Glu-Gln-Gln-NH(2) (P(11)-2) and CH(3)CO-Gln-Gln-Orn-Phe-Orn-Trp-Orn-Phe-Orn-Gln-Gln-NH(2) (P(11)-14) have unique self-assembly characteristics and broad application potential. Originally, these peptides were produced by chemical synthesis, which is costly and difficult to scale up to industrial levels in an economically feasible way. This article describes the efficient secreted production of these peptides (with free termini and ornithines replaced with lysines) in the methylotrophic yeast Pichia pastoris. The peptides were produced as enterokinase-cleavable fusions to the C-terminus of an artificial Solubility-Enhancing Protein (SEP). In vitro, the fused highly hydrophilic SEP proved to prevent self-assembly of the peptides. The SEP domain also facilitates product detection and allows convenient separation of the fusion protein from the broth by simple salt precipitation. After cleavage of the purified fusion protein with enterokinase, the free undecapeptides were obtained and P(11)-2 spontaneously assembled into a self-supporting gel, as intended. The properties of the SEP carrier could be advantageous for the production of other peptides.
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Affiliation(s)
- Antoine P H A Moers
- Biobased Products, Agrotechnology & Food Sciences Group, Wageningen UR, NL-6708 WG Wageningen, The Netherlands
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Abstract
Peptides, peptidomimetics, and peptide derivatives that self-assemble into fibrillar gels have received increasing interest as synthetic extracellular matrices for applications in 3D cell culture and regenerative medicine. Recently, several of these fibrillizing molecules have been functionalized with bioactive components and chemical features such as cell-binding ligands, degradable sequences, drug eluting compounds, and cross-linkable groups, thereby producing gels that can reliably display multiple factors simultaneously. This capacity for incorporating precise levels of many different biological and chemical factors is advantageous given the natural complexity of cell-matrix interactions that many current biomaterial strategies seek to mimic. In this review, recent efforts in the area of fibril-forming peptide materials are described, and advantages of biomaterials containing multiple modular elements are outlined. In addition, a few hurdles and open questions surrounding fibrillar peptide gels are discussed, including issues of the materials' structural heterogeneity, challenges in fully characterizing the diversity of their self-assembled structures, and incomplete knowledge of how the materials are processed in vivo.
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Affiliation(s)
- Jangwook P. Jung
- Department of Surgery and Committee on Molecular Medicine, University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA
- Department of Biomedical Engineering, University of Cincinnati, 2901 Woodside Dr., Cincinnati, OH 45221-0048, USA
| | - Joshua Z. Gasiorowski
- Department of Surgery and Committee on Molecular Medicine, University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA
| | - Joel H. Collier
- Department of Surgery and Committee on Molecular Medicine, University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA
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29
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Wagstaff JL, Howard MJ, Williamson RA. Production of recombinant isotopically labelled peptide by fusion to an insoluble partner protein: generation of integrin αvβ6 binding peptides for NMR. MOLECULAR BIOSYSTEMS 2010; 6:2380-5. [DOI: 10.1039/c0mb00105h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Abstract
The development of vaccines and other immunotherapies has been complicated by heterogeneous antigen display and the use of incompletely defined immune adjuvants with complex mechanisms of action. We have observed strong antibody responses in mice without the coadministration of any additional adjuvant by noncovalently assembling a T and B cell epitope peptide into nanofibers using a short C-terminal peptide extension. Self-assembling peptides have been explored recently as scaffolds for tissue engineering and regenerative medicine, but our results indicate that these materials may also be useful as chemically defined adjuvants. In physiological conditions, these peptides self-assembled into long, unbranched fibrils that displayed the epitope on their surfaces. IgG1, IgG2a, and IgG3 were raised against epitope-bearing fibrils in levels similar to the epitope peptide delivered in complete Freund's adjuvant (CFA), and IgM production was even greater for the self-assembled epitope. This response was dependent on self-assembly, and the self-assembling sequence was not immunogenic by itself, even when delivered in CFA. Undetectable levels of interferon-gamma, IL-2, and IL-4 in cultures of peptide-challenged splenocytes from immunized mice suggested that the antibody responses did not involve significant T cell help.
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31
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Bioorganic synthesis of a recombinant HIV-1 fusion inhibitor, SC35EK, with an N-terminal pyroglutamate capping group. Bioorg Med Chem 2009; 17:7964-70. [PMID: 19864148 DOI: 10.1016/j.bmc.2009.10.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 10/07/2009] [Accepted: 10/08/2009] [Indexed: 01/30/2023]
Abstract
The bioorganic synthesis of an end-capped anti-HIV peptide from a recombinant protein was investigated. Cyanogen bromide-mediated cleavage of two Met-Gln sites across the target anti-HIV sequence generated an HIV-1 fusion inhibitor (SC35EK) analog bearing an N-terminal pyroglutamate (pGlu) residue and a C-terminal homoserine lactone (Hsl) residue. The end-capped peptide, pGlu-SC35EK-Hsl, had similar bioactivity and biophysical properties to the parent peptide, and an improved resistance to peptidase-mediated degradation was observed compared with the non-end-capped peptide obtained using standard recombinant technology.
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32
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Kyle S, Aggeli A, Ingham E, McPherson MJ. Production of self-assembling biomaterials for tissue engineering. Trends Biotechnol 2009; 27:423-33. [PMID: 19497631 PMCID: PMC2828541 DOI: 10.1016/j.tibtech.2009.04.002] [Citation(s) in RCA: 181] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 04/01/2009] [Accepted: 04/01/2009] [Indexed: 11/24/2022]
Abstract
Self-assembling peptide-based biomaterials are being developed for use as 3D tissue engineering scaffolds and for therapeutic drug-release applications. Chemical synthesis provides custom-made peptides in small quantities, but production approaches based upon transgenic organisms might be more cost-effective for large-scale peptide production. Long lead times for developing appropriate animal clones or plant lines and potential negative public opinion are obstacles to these routes. Microbes, particularly safe organisms used in the food industry, offer a more rapid route to the large-scale production of recombinant self-assembling biomaterials. In this review, recent advances and challenges in the recombinant production of collagen, elastin and de novo designed self-assembling peptides are discussed.
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Affiliation(s)
- Stuart Kyle
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK.
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