1
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Gomez-Soler M, Olson EJ, de la Torre ER, Zhao C, Lamberto I, Flood DT, Danho W, Lechtenberg BC, Riedl SJ, Dawson PE, Pasquale EB. Lipidation and PEGylation Strategies to Prolong the in Vivo Half-Life of a Nanomolar EphA4 Receptor Antagonist. Eur J Med Chem 2023; 262:115876. [PMID: 38523699 PMCID: PMC10959496 DOI: 10.1016/j.ejmech.2023.115876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
The EphA4 receptor tyrosine kinase plays a role in neurodegenerative diseases, inhibition of nerve regeneration, cancer progression and other diseases. Therefore, EphA4 inhibition has potential therapeutic value. Selective EphA4 kinase inhibitors are not available, but we identified peptide antagonists that inhibit ephrin ligand binding to EphA4 with high specificity. One of these peptides is the cyclic APY-d3 (βAPYCVYRβASWSC-NH2), which inhibits ephrin-A5 ligand binding to EphA4 with low nanomolar binding affinity and is highly protease resistant. Here we describe modifications of APY-d3 that yield two different key derivatives with greatly increased half-lives in the mouse circulation, the lipidated APY-d3-laur8 and the PEGylated APY-d3-PEG4. These two derivatives inhibit ligand induced EphA4 activation in cells with sub-micromolar potency. Since they retain high potency and specificity for EphA4, lipidated and PEGylated APY-d3 derivatives represent new tools for discriminating EphA4 activities in vivo and for preclinical testing of EphA4 inhibition in animal disease models.
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Affiliation(s)
- Maricel Gomez-Soler
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
| | - Erika J. Olson
- Departments of Chemistry and Cell and Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Elena Rubio de la Torre
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
| | - Chunxia Zhao
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
| | - Ilaria Lamberto
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
| | - Dillon T. Flood
- Departments of Chemistry and Cell and Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Waleed Danho
- Del Mar, California 92014, United States
- Deceased
| | - Bernhard C. Lechtenberg
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
| | - Stefan J. Riedl
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
| | - Philip E. Dawson
- Departments of Chemistry and Cell and Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Elena B. Pasquale
- Cancer Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California 92037, United States
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2
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Adams Z, Silvestri AP, Chiorean S, Flood DT, Balo BP, Shi Y, Holcomb M, Walsh SI, Maillie CA, Pierens GK, Forli S, Rosengren KJ, Dawson PE. Stretching Peptides to Generate Small Molecule β-Strand Mimics. ACS Cent Sci 2023; 9:648-656. [PMID: 37122474 PMCID: PMC10141592 DOI: 10.1021/acscentsci.2c01462] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Indexed: 05/03/2023]
Abstract
Advances in the modulation of protein-protein interactions (PPIs) enable both characterization of PPI networks that govern diseases and design of therapeutics and probes. The shallow protein surfaces that dominate PPIs are challenging to target using standard methods, and approaches for accessing extended backbone structures are limited. Here, we incorporate a rigid, linear, diyne brace between side chains at the i to i+2 positions to generate a family of low-molecular-weight, extended-backbone peptide macrocycles. NMR and density functional theory studies show that these stretched peptides adopt stable, rigid conformations in solution and can be tuned to explore extended peptide conformational space. The diyne brace is formed in excellent conversions (>95%) and amenable to high-throughput synthesis. The minimalist structure-inducing tripeptide core (<300 Da) is amenable to further synthetic elaboration. Diyne-braced inhibitors of bacterial type 1 signal peptidase demonstrate the utility of the technique.
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Affiliation(s)
- Zoë
C. Adams
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Anthony P. Silvestri
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
- Unnatural
Products, Inc., 2161
Delaware Ave, Suite A., Santa Cruz, California 95060, United States
| | - Sorina Chiorean
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dillon T. Flood
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Brian P. Balo
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Yifan Shi
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Matthew Holcomb
- Department
of Integrated Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Shawn I. Walsh
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Colleen A. Maillie
- Department
of Integrated Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Gregory K. Pierens
- Centre
for Advanced Imaging, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Stefano Forli
- Department
of Integrated Structural and Computational Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - K. Johan Rosengren
- Institute
for Molecular Bioscience and School of Biomedical Sciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Philip E. Dawson
- Department
of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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3
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Lee U, Ko J, Kim S, Lee P, An Y, Yun H, Flood DT, Dawson PE, Hwang NS, Kim B. Light-Triggered In Situ Biosynthesis of Artificial Melanin for Skin Protection. Adv Sci (Weinh) 2022; 9:e2103503. [PMID: 34989175 PMCID: PMC8895148 DOI: 10.1002/advs.202103503] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/29/2021] [Indexed: 05/05/2023]
Abstract
Tyrosinase-mediated melanin synthesis is an essential biological process that can protect skin from UV radiation and radical species. This work reports on in situ biosynthesis of artificial melanin in native skin using photoactivatable tyrosinase (PaTy). The I41Y mutant of Streptomyces avermitilis tyrosinase (SaTy) shows enzymatic activity comparable to that of wild-type SaTy. This Y41 is replaced with photocleavable o-nitrobenzyl tyrosine (ONBY) using the introduction of amber codon and ONBY-tRNA synthetase/tRNA pairs. The ONBY efficiently blocks the active site and tyrosinase activity is rapidly recovered by the photo-cleavage of ONBY. The activated PaTy successfully oxidizes L-tyrosine and tyramine-conjugated hyaluronic acid (HA_T) to synthesize melanin particles and hydrogel, respectively. To produce artificial melanin in living tissues, PaTy is encapsulated into lipid nanoparticles as an artificial melanosome. Using liposomes containing PaTy (PaTy_Lip), PaTy is transdermally delivered into ex vivo porcine skin and in vivo mouse skin tissues, thus achieving the in situ biosynthesis of artificial melanin for skin tissue protection under UV irradiation. The results of this study demonstrate that this biomimetic system can recapitulate the biosynthetic analogs of naturally occurring melanin. It should therefore be considered to be a promising strategy for producing protective biological molecules within living systems for tissue protection.
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Affiliation(s)
- Uk‐Jae Lee
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
- Institute of Molecular Biology and GeneticsSeoul National UniversitySeoul08826South Korea
| | - Junghyeon Ko
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
| | - Su‐Hwan Kim
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
- Department of Chemical Engineering (BK 21 FOUR)Dong‐A UniversityBusan49315South Korea
| | - Pyung‐Gang Lee
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
- Institute of Molecular Biology and GeneticsSeoul National UniversitySeoul08826South Korea
| | - Young‐Hyeon An
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
- Bio‐MAX/N‐BioInstitute of BioEngineerigSeoul National UniversitySeoul08826South Korea
| | - Hyungdon Yun
- Department of Systems BiotechnologyKonkuk UniversitySeoul05029South Korea
| | - Dillon T. Flood
- Department of ChemistryThe Scripps Research Institute10550 N. Torrey Pines RoadLa JollaCA92037USA
| | - Philip E. Dawson
- Department of ChemistryThe Scripps Research Institute10550 N. Torrey Pines RoadLa JollaCA92037USA
| | - Nathaniel S. Hwang
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
- Bio‐MAX/N‐BioInstitute of BioEngineerigSeoul National UniversitySeoul08826South Korea
- Institute for Engineering ResearchSeoul National UniversitySeoul08826South Korea
| | - Byung‐Gee Kim
- School of Chemical and Biological EngineeringInstitute of Chemical ProcessesSeoul National UniversitySeoul08826South Korea
- Institute of Molecular Biology and GeneticsSeoul National UniversitySeoul08826South Korea
- Bio‐MAX/N‐BioInstitute of BioEngineerigSeoul National UniversitySeoul08826South Korea
- Institute for Sustainable Development(ISD)Seoul National UniversitySeoul08826South Korea
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4
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Ociepa M, Knouse KW, He D, Vantourout JC, Flood DT, Padial NM, Chen JS, Sanchez BB, Sturgell EJ, Zheng B, Qiu S, Schmidt MA, Eastgate MD, Baran PS. Mild and Chemoselective Phosphorylation of Alcohols Using a Ψ-Reagent. Org Lett 2021; 23:9337-9342. [PMID: 34499517 PMCID: PMC8733960 DOI: 10.1021/acs.orglett.1c02736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An operationally simple, scalable, and chemoselective method for the direct phosphorylation of alcohols using a P(V)-approach based on the Ψ-reagent platform is disclosed. The method features a broad substrate scope of utility in both simple and complex settings and provides access to valuable phosphorylated alcohols that would be otherwise difficult to obtain.
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Affiliation(s)
- Michał Ociepa
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Kyle W. Knouse
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - David He
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Julien C. Vantourout
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Dillon T. Flood
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Natalia M. Padial
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Jason S. Chen
- Automated Synthesis Facility, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Brittany B. Sanchez
- Automated Synthesis Facility, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Emily J. Sturgell
- Automated Synthesis Facility, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
| | - Bin Zheng
- Chemical Process Development, Bristol Myers Squibb, One Squibb Drive, New Brunswick, New Jersey, 08901, United States
| | - Shenjie Qiu
- Chemical Process Development, Bristol Myers Squibb, One Squibb Drive, New Brunswick, New Jersey, 08901, United States
| | - Michael A. Schmidt
- Chemical Process Development, Bristol Myers Squibb, One Squibb Drive, New Brunswick, New Jersey, 08901, United States
| | - Martin D. Eastgate
- Chemical Process Development, Bristol Myers Squibb, One Squibb Drive, New Brunswick, New Jersey, 08901, United States
| | - Phil S. Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, United States
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5
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Knouse KW, Flood DT, Vantourout JC, Schmidt MA, Mcdonald IM, Eastgate MD, Baran PS. Nature Chose Phosphates and Chemists Should Too: How Emerging P(V) Methods Can Augment Existing Strategies. ACS Cent Sci 2021; 7:1473-1485. [PMID: 34584948 PMCID: PMC8461637 DOI: 10.1021/acscentsci.1c00487] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Indexed: 05/27/2023]
Abstract
Phosphate linkages govern life as we know it. Their unique properties provide the foundation for many natural systems from cell biology and biosynthesis to the backbone of nucleic acids. Phosphates are ideal natural moieties; existing as ionized species in a stable P(V)-oxidation state, they are endowed with high stability but exhibit enzymatically unlockable potential. Despite intense interest in phosphorus catalysis and condensation chemistry, organic chemistry has not fully embraced the potential of P(V) reagents. To be sure, within the world of chemical oligonucleotide synthesis, modern approaches utilize P(III) reagent systems to create phosphate linkages and their analogs. In this Outlook, we present recent studies from our laboratories suggesting that numerous exciting opportunities for P(V) chemistry exist at the nexus of organic synthesis and biochemistry. Applications to the synthesis of stereopure antisense oligonucleotides, cyclic dinucleotides, methylphosphonates, and phosphines are reviewed as well as chemoselective modification to peptides, proteins, and nucleic acids. Finally, an outlook into what may be possible in the future with P(V) chemistry is previewed, suggesting these examples represent just the tip of the iceberg.
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Affiliation(s)
- Kyle W. Knouse
- Elsie
Biotechnologies, 4955
Directors Place, San Diego, California 92121, United States
- Department
of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dillon T. Flood
- Elsie
Biotechnologies, 4955
Directors Place, San Diego, California 92121, United States
- Department
of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Julien C. Vantourout
- Department
of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Michael A. Schmidt
- Chemical
and Synthetic Development, Bristol Myers
Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Ivar M. Mcdonald
- Small
Molecule Drug Discovery, Bristol Myers Squibb, 100 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Martin D. Eastgate
- Chemical
and Synthetic Development, Bristol Myers
Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Phil S. Baran
- Elsie
Biotechnologies, 4955
Directors Place, San Diego, California 92121, United States
- Department
of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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6
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Pagar AD, Patil MD, Flood DT, Yoo TH, Dawson PE, Yun H. Recent Advances in Biocatalysis with Chemical Modification and Expanded Amino Acid Alphabet. Chem Rev 2021; 121:6173-6245. [PMID: 33886302 DOI: 10.1021/acs.chemrev.0c01201] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The two main strategies for enzyme engineering, directed evolution and rational design, have found widespread applications in improving the intrinsic activities of proteins. Although numerous advances have been achieved using these ground-breaking methods, the limited chemical diversity of the biopolymers, restricted to the 20 canonical amino acids, hampers creation of novel enzymes that Nature has never made thus far. To address this, much research has been devoted to expanding the protein sequence space via chemical modifications and/or incorporation of noncanonical amino acids (ncAAs). This review provides a balanced discussion and critical evaluation of the applications, recent advances, and technical breakthroughs in biocatalysis for three approaches: (i) chemical modification of cAAs, (ii) incorporation of ncAAs, and (iii) chemical modification of incorporated ncAAs. Furthermore, the applications of these approaches and the result on the functional properties and mechanistic study of the enzymes are extensively reviewed. We also discuss the design of artificial enzymes and directed evolution strategies for enzymes with ncAAs incorporated. Finally, we discuss the current challenges and future perspectives for biocatalysis using the expanded amino acid alphabet.
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Affiliation(s)
- Amol D Pagar
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
| | - Mahesh D Patil
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
| | - Dillon T Flood
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Tae Hyeon Yoo
- Department of Molecular Science and Technology, Ajou University, 206 World cup-ro, Yeongtong-gu, Suwon 16499, Korea
| | - Philip E Dawson
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Hyungdon Yun
- Department of Systems Biotechnology, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Korea
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7
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Flood DT, Knouse KW, Vantourout JC, Kitamura S, Sanchez BB, Sturgell EJ, Chen JS, Wolan DW, Baran PS, Dawson PE. Correction to "Synthetic Elaboration of Native DNA by RASS (SENDR)". ACS Cent Sci 2020; 6:2117. [PMID: 33274288 PMCID: PMC7706086 DOI: 10.1021/acscentsci.0c01389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Indexed: 06/12/2023]
Abstract
[This corrects the article DOI: 10.1021/acscentsci.0c00680.].
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8
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Vantourout JC, Adusumalli SR, Knouse KW, Flood DT, Ramirez A, Padial NM, Istrate A, Maziarz K, deGruyter JN, Merchant RR, Qiao JX, Schmidt MA, Deery MJ, Eastgate MD, Dawson PE, Bernardes GJL, Baran PS. Serine-Selective Bioconjugation. J Am Chem Soc 2020; 142:17236-17242. [PMID: 32965106 DOI: 10.1021/jacs.0c05595] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This Communication reports the first general method for rapid, chemoselective, and modular functionalization of serine residues in native polypeptides, which uses a reagent platform based on the P(V) oxidation state. This redox-economical approach can be used to append nearly any kind of cargo onto serine, generating a stable, benign, and hydrophilic phosphorothioate linkage. The method tolerates all other known nucleophilic functional groups of naturally occurring proteinogenic amino acids. A variety of applications can be envisaged by this expansion of the toolbox of site-selective bioconjugation methods.
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Affiliation(s)
- Julien C Vantourout
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Srinivasa Rao Adusumalli
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Kyle W Knouse
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dillon T Flood
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Antonio Ramirez
- Chemical Process Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Natalia M Padial
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Alena Istrate
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Katarzyna Maziarz
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Justine N deGruyter
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Rohan R Merchant
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jennifer X Qiao
- Chemical Process Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael A Schmidt
- Chemical Process Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Michael J Deery
- Cambridge Centre for Proteomics, Milner Therapeutics Institute, Jeffrey Cheah Biomedical Centre, University of Cambridge, Puddicombe Way, Cambridge CB2 0AW, United Kingdom
| | - Martin D Eastgate
- Chemical Process Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Philip E Dawson
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Gonçalo J L Bernardes
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.,Instituto de Medicina Molecular, Faculdade de Medicina, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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9
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Abstract
The intriguing structure of tagetitoxin (1), a long-standing challenge in natural product synthesis, has been the subject of multiple revisions and has been confirmed through total synthesis. The route commences from a renewable furan starting material and features a number of unusual transformations (such as rearrangements, bromocyclization, and P(V)-based phosphate installation) to arrive at the target in 15 steps. As the route was designed to enable access to both enantiomers, the absolute configuration of the natural product could be assigned using a bioassay on (+)-1 and (-)-1.
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Affiliation(s)
- Chi He
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Hang Chu
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Thomas P Stratton
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - David Kossler
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Kelly J Eberle
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Dillon T Flood
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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10
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Flood DT, Zhang X, Fu X, Zhao Z, Asai S, Sanchez BB, Sturgell EJ, Vantourout JC, Richardson P, Flanagan ME, Piotrowski DW, Kölmel DK, Wan J, Tsai MH, Chen JS, Baran PS, Dawson PE. RASS-Enabled S/P-C and S-N Bond Formation for DEL Synthesis. Angew Chem Int Ed Engl 2020; 59:7377-7383. [PMID: 32050046 DOI: 10.1002/anie.201915493] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/05/2020] [Indexed: 01/28/2023]
Abstract
DNA encoded libraries (DEL) have shown promise as a valuable technology for democratizing the hit discovery process. Although DEL provides relatively inexpensive access to libraries of unprecedented size, their production has been hampered by the idiosyncratic needs of the encoding DNA tag relegating DEL compatible chemistry to dilute aqueous environments. Recently reversible adsorption to solid support (RASS) has been demonstrated as a promising method to expand DEL reactivity using standard organic synthesis protocols. Here we demonstrate a suite of on-DNA chemistries to incorporate medicinally relevant and C-S, C-P and N-S linkages into DELs, which are underrepresented in the canonical methods.
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Affiliation(s)
- Dillon T Flood
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Xuejing Zhang
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA.,School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Xiang Fu
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA.,School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Zhenxiang Zhao
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Shota Asai
- Department of Chemistry and Biological Sciences, Faculty of and Engineering, Iwate University, 4-3-5 Ueda, Morioka, 020-8551, Japan
| | - Brittany B Sanchez
- Automated Synthesis Facility, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Emily J Sturgell
- Automated Synthesis Facility, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Julien C Vantourout
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Paul Richardson
- Pfizer Medicinal Chemistry, 10770 Science Center Drive, San Diego, CA, 92121, USA
| | - Mark E Flanagan
- Pfizer Medicinal Chemistry, Eastern Point Road, Groton, CT, 06340, USA
| | | | - Dominik K Kölmel
- Pfizer Medicinal Chemistry, Eastern Point Road, Groton, CT, 06340, USA
| | - Jinqiao Wan
- HitGen Inc., Building 6, No. 8 Huigu 1st East Road Tianfu International Bio-Town, Shuangliu District, Chengdu, 610200, Sichuan, China
| | - Mei-Hsuan Tsai
- HitGen Inc., Building 6, No. 8 Huigu 1st East Road Tianfu International Bio-Town, Shuangliu District, Chengdu, 610200, Sichuan, China
| | - Jason S Chen
- Automated Synthesis Facility, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Phil S Baran
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Philip E Dawson
- Department of Chemistry, Scripps Research, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
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Flood DT, Zhang X, Fu X, Zhao Z, Asai S, Sanchez BB, Sturgell EJ, Vantourout JC, Richardson P, Flanagan ME, Piotrowski DW, Kölmel DK, Wan J, Tsai M, Chen JS, Baran PS, Dawson PE. RASS‐Enabled S/P−C and S−N Bond Formation for DEL Synthesis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915493] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Dillon T. Flood
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Xuejing Zhang
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Xiang Fu
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
- School of Pharmaceutical SciencesSun Yat-sen University Guangzhou 510006 China
| | - Zhenxiang Zhao
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Shota Asai
- Department of Chemistry and Biological SciencesFaculty of and EngineeringIwate University 4-3-5 Ueda Morioka 020-8551 Japan
| | - Brittany B. Sanchez
- Automated Synthesis FacilityThe Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Emily J. Sturgell
- Automated Synthesis FacilityThe Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Julien C. Vantourout
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Paul Richardson
- Pfizer Medicinal Chemistry 10770 Science Center Drive San Diego CA 92121 USA
| | - Mark E. Flanagan
- Pfizer Medicinal Chemistry Eastern Point Road Groton CT 06340 USA
| | | | | | - Jinqiao Wan
- HitGen Inc. Building 6, No. 8 Huigu 1st East Road Tianfu International Bio-Town, Shuangliu District, Chengdu 610200 Sichuan China
| | - Mei‐Hsuan Tsai
- HitGen Inc. Building 6, No. 8 Huigu 1st East Road Tianfu International Bio-Town, Shuangliu District, Chengdu 610200 Sichuan China
| | - Jason S. Chen
- Automated Synthesis FacilityThe Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Phil S. Baran
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Philip E. Dawson
- Department of ChemistryScripps Research 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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12
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Affiliation(s)
- Dillon T. Flood
- Department of ChemistryScripps Research 10550 North Torrey Pines Road La Jolla, California 93037
| | - Cian Kingston
- Department of ChemistryScripps Research 10550 North Torrey Pines Road La Jolla, California 93037
| | - Julien C. Vantourout
- Department of ChemistryScripps Research 10550 North Torrey Pines Road La Jolla, California 93037
| | - Philip E. Dawson
- Department of ChemistryScripps Research 10550 North Torrey Pines Road La Jolla, California 93037
| | - Phil S. Baran
- Department of ChemistryScripps Research 10550 North Torrey Pines Road La Jolla, California 93037
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13
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Flood DT, Asai S, Zhang X, Wang J, Yoon L, Adams ZC, Dillingham BC, Sanchez BB, Vantourout JC, Flanagan ME, Piotrowski DW, Richardson P, Green SA, Shenvi RA, Chen JS, Baran PS, Dawson PE. Expanding Reactivity in DNA-Encoded Library Synthesis via Reversible Binding of DNA to an Inert Quaternary Ammonium Support. J Am Chem Soc 2019; 141:9998-10006. [PMID: 31136164 PMCID: PMC7033622 DOI: 10.1021/jacs.9b03774] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
DNA Encoded Libraries have proven immensely powerful tools for lead identification. The ability to screen billions of compounds at once has spurred increasing interest in DEL development and utilization. Although DEL provides access to libraries of unprecedented size and diversity, the idiosyncratic and hydrophilic nature of the DNA tag severely limits the scope of applicable chemistries. It is known that biomacromolecules can be reversibly, noncovalently adsorbed and eluted from solid supports, and this phenomenon has been utilized to perform synthetic modification of biomolecules in a strategy we have described as reversible adsorption to solid support (RASS). Herein, we present the adaptation of RASS for a DEL setting, which allows reactions to be performed in organic solvents at near anhydrous conditions opening previously inaccessible chemical reactivities to DEL. The RASS approach enabled the rapid development of C(sp2)-C(sp3) decarboxylative cross-couplings with broad substrate scope, an electrochemical amination (the first electrochemical synthetic transformation performed in a DEL context), and improved reductive amination conditions. The utility of these reactions was demonstrated through a DEL-rehearsal in which all newly developed chemistries were orchestrated to afford a compound rich in diverse skeletal linkages. We believe that RASS will offer expedient access to new DEL reactivities, expanded chemical space, and ultimately more drug-like libraries.
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Affiliation(s)
- Dillon T. Flood
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Shota Asai
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Xuejing Zhang
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jie Wang
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Leonard Yoon
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Zoë C. Adams
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Blythe C. Dillingham
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Brittany B. Sanchez
- Automated Synthesis Facility, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Julien C. Vantourout
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Mark E. Flanagan
- Pfizer Medicinal Chemistry, Eastern Point Road, Groton, CT 06340, United States
| | - David W. Piotrowski
- Pfizer Medicinal Chemistry, Eastern Point Road, Groton, CT 06340, United States
| | - Paul Richardson
- Pfizer Medicinal Chemistry, 10578 Science Center Drive, San Diego, CA 92121, United States
| | - Samantha A. Green
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Ryan A. Shenvi
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jason S. Chen
- Automated Synthesis Facility, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, United States
| | - Phil S. Baran
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Philip E. Dawson
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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Abstract
For over 20 years, native chemical ligation (NCL) has played a pivotal role in enabling total synthesis and semisynthesis of increasingly complex peptide and protein targets. Classical NCL proceeds by chemoselective reaction of two unprotected polypeptide chains in near-neutral-pH, aqueous solution and is made possible by the presence of a thioester moiety on the C-terminus of the N-terminal peptide fragment and a natural cysteine residue on the N-terminus of the C-terminal peptide fragment. The reaction yields an amide bond adjacent to cysteine at the ligation site, furnishing a native protein backbone in a traceless manner. This unit highlights a number of recent and powerful advances in the methodology and outlines their particular uses, facilitating application in the synthesis of challenging protein targets. © 2019 by John Wiley & Sons, Inc.
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15
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Won Y, Jeon H, Pagar AD, Patil MD, Nadarajan SP, Flood DT, Dawson PE, Yun H. In vivo biosynthesis of tyrosine analogs and their concurrent incorporation into a residue-specific manner for enzyme engineering. Chem Commun (Camb) 2019; 55:15133-15136. [DOI: 10.1039/c9cc08503c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A cellular system for the in vivo biosynthesis of Tyr-analogs and their concurrent incorporation into target proteins is reported.
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Affiliation(s)
- Yumi Won
- Department of Systems Biotechnology
- Konkuk University
- Gwangjin-gu
- Korea
| | - Hyunwoo Jeon
- Department of Systems Biotechnology
- Konkuk University
- Gwangjin-gu
- Korea
| | - Amol D. Pagar
- Department of Systems Biotechnology
- Konkuk University
- Gwangjin-gu
- Korea
| | - Mahesh D. Patil
- Department of Systems Biotechnology
- Konkuk University
- Gwangjin-gu
- Korea
| | | | - Dillon T. Flood
- Department of Chemistry
- The Scripps Research Institute
- La Jolla
- USA
| | - Philip E. Dawson
- Department of Chemistry
- The Scripps Research Institute
- La Jolla
- USA
| | - Hyungdon Yun
- Department of Systems Biotechnology
- Konkuk University
- Gwangjin-gu
- Korea
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16
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Flood DT, Hintzen JCJ, Bird MJ, Cistrone PA, Chen JS, Dawson PE. Leveraging the Knorr Pyrazole Synthesis for the Facile Generation of Thioester Surrogates for use in Native Chemical Ligation. Angew Chem Int Ed Engl 2018; 57:11634-11639. [PMID: 29908104 PMCID: PMC6126375 DOI: 10.1002/anie.201805191] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/14/2018] [Indexed: 12/12/2022]
Abstract
Facile synthesis of C-terminal thioesters is integral to native chemical ligation (NCL) strategies for chemical protein synthesis. We introduce a new method of mild peptide activation, which leverages solid-phase peptide synthesis (SPPS) on an established resin linker and classical heterocyclic chemistry to convert C-terminal peptide hydrazides into their corresponding thioesters via an acyl pyrazole intermediate. Peptide hydrazides, synthesized on established trityl chloride resins, can be activated in solution with stoichiometric acetyl acetone (acac), readily proceed to the peptide acyl pyrazoles. Acyl pyrazoles are mild acylating agents and are efficiently exchanged with an aryl thiol, which can then be directly utilized in NCL. The mild, chemoselective, and stoichiometric activating conditions allow this method to be utilized through multiple sequential ligations without intermediate purification steps.
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Affiliation(s)
- Dillon T. Flood
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA)
| | - Jordi C. J. Hintzen
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA)
| | - Michael J. Bird
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA)
| | - Philip A. Cistrone
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA)
| | - Jason S. Chen
- Director of the Automated Synthesis Facility, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA)
| | - Philip E. Dawson
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA 92037 (USA),
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17
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Flood DT, Hintzen JCJ, Bird MJ, Cistrone PA, Chen JS, Dawson PE. Leveraging the Knorr Pyrazole Synthesis for the Facile Generation of Thioester Surrogates for use in Native Chemical Ligation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805191] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Dillon T. Flood
- Department of Chemistry; The Scripps Research Institute; 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Jordi C. J. Hintzen
- Department of Chemistry; The Scripps Research Institute; 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Michael J. Bird
- Department of Chemistry; The Scripps Research Institute; 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Philip A. Cistrone
- Department of Chemistry; The Scripps Research Institute; 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Jason S. Chen
- Automated Synthesis Facility; The Scripps Research Institute; 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Philip E. Dawson
- Department of Chemistry; The Scripps Research Institute; 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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Flood DT, Yan NL, Dawson PE. Post-Translational Backbone Engineering through Selenomethionine-Mediated Incorporation of Freidinger Lactams. Angew Chem Int Ed Engl 2018; 57:8697-8701. [PMID: 29797386 DOI: 10.1002/anie.201804885] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/16/2018] [Indexed: 11/11/2022]
Abstract
Amino-γ-lactam (Agl) bridged dipeptides, commonly known as Freidinger lactams, have been shown to constrain peptide backbone topology and stabilize type II' β-turns. The utility of these links as peptide constraints has inspired new approaches to their incorporation into complex peptides and peptoids, all of which require harsh reaction conditions or protecting groups that limit their use on unprotected peptides and proteins. Herein, we employ a mild and selective alkylation of selenomethionine in acidic aqueous solution, followed by immobilization of the alkylated peptide on to bulk reverse-phase C18 silica and base-induced lactamization in DMSO. The utilization of selenomethionine, which is readily introduced by synthesis or expression, and the mild conditions enable selective backbone engineering in complex peptide and protein systems.
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Affiliation(s)
- Dillon T Flood
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Nicholas L Yan
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Philip E Dawson
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
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Flood DT, Yan NL, Dawson PE. Post‐Translational Backbone Engineering through Selenomethionine‐Mediated Incorporation of Freidinger Lactams. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804885] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dillon T. Flood
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Nicholas L. Yan
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Philip E. Dawson
- Department of Chemistry The Scripps Research Institute 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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