1
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Gianotti AR, Klinke S, Ermácora MR. The structure of unliganded sterol carrier protein 2 from Yarrowia lipolytica unveils a mechanism for binding site occlusion. J Struct Biol 2020; 213:107675. [PMID: 33278583 DOI: 10.1016/j.jsb.2020.107675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/21/2020] [Accepted: 11/27/2020] [Indexed: 11/19/2022]
Abstract
Isolated or as a part of multidomain proteins, Sterol Carrier Protein 2 (SCP2) exhibits high affinity and broad specificity for different lipidic and hydrophobic compounds. A wealth of structural information on SCP2 domains in all forms of life is currently available; however, many aspects of its ligand binding activity are poorly understood. ylSCP2 is a well-characterized single domain SCP2 from the yeast Yarrowia lipolytica. Herein, we report the X-ray structure of unliganded ylSCP2 refined to 2.0 Å resolution. Comparison with the previously solved liganded ylSCP2 structure unveiled a novel mechanism for binding site occlusion. The liganded ylSCP2 binding site is a large cavity with a volume of more than 800 Å3. In unliganded ylSCP2 the binding site is reduced to about 140 Å3. The obliteration is caused by a swing movement of the C-terminal α helix 5 and a subtle compaction of helices 2-4. Previous pairwise comparisons were between homologous SCP2 domains with a uncertain binding status. The reported unliganded ylSCP2 structure allows for the first time a fully controlled comparative analysis of the conformational effects of ligand occupation dispelling several doubts regarding the architecture of SCP2 binding site.
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Affiliation(s)
- Alejo R Gianotti
- Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Argentina; Grupo de Biología Estructural y Biotecnología, IMBICE, CONICET, Universidad Nacional de Quilmes, Argentina
| | - Sebastián Klinke
- Fundación Instituto Leloir, IIBBA-CONICET, and Plataforma Argentina de Biología Estructural y Metabolómica PLABEM, Buenos Aires, Argentina
| | - Mario R Ermácora
- Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes, Argentina; Grupo de Biología Estructural y Biotecnología, IMBICE, CONICET, Universidad Nacional de Quilmes, Argentina.
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2
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Hajj Chehade M, Pelosi L, Fyfe CD, Loiseau L, Rascalou B, Brugière S, Kazemzadeh K, Vo CDT, Ciccone L, Aussel L, Couté Y, Fontecave M, Barras F, Lombard M, Pierrel F. A Soluble Metabolon Synthesizes the Isoprenoid Lipid Ubiquinone. Cell Chem Biol 2019; 26:482-492.e7. [PMID: 30686758 DOI: 10.1016/j.chembiol.2018.12.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/14/2018] [Accepted: 11/29/2018] [Indexed: 01/03/2023]
Abstract
Ubiquinone (UQ) is a polyprenylated lipid that is conserved from bacteria to humans and is crucial to cellular respiration. How the cell orchestrates the efficient synthesis of UQ, which involves the modification of extremely hydrophobic substrates by multiple sequential enzymes, remains an unresolved issue. Here, we demonstrate that seven Ubi proteins form the Ubi complex, a stable metabolon that catalyzes the last six reactions of the UQ biosynthetic pathway in Escherichia coli. The SCP2 domain of UbiJ forms an extended hydrophobic cavity that binds UQ intermediates inside the 1-MDa Ubi complex. We purify the Ubi complex from cytoplasmic extracts and demonstrate that UQ biosynthesis occurs in this fraction, challenging the current thinking of a membrane-associated biosynthetic process. Collectively, our results document a rare case of stable metabolon and highlight how the supramolecular organization of soluble enzymes allows the modification of hydrophobic substrates in a hydrophilic environment.
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Affiliation(s)
| | - Ludovic Pelosi
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000 Grenoble, France
| | - Cameron David Fyfe
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, PSL Research University, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Laurent Loiseau
- Aix Marseille Université, CNRS, Laboratoire Chimie Bactérienne, Institut Microbiologie de la Méditerranée, 31 Chemin Joseph Aiguier, Marseille 13009, France
| | - Bérengère Rascalou
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000 Grenoble, France
| | - Sabine Brugière
- Univ. Grenoble Alpes, CEA, Inserm, BIG-BGE, 38000 Grenoble, France
| | | | - Chau-Duy-Tam Vo
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, PSL Research University, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Lidia Ciccone
- SOLEIL Synchrotron, L'Orme des Merisiers, 91198 Gif-sur-Yvette, France
| | - Laurent Aussel
- Aix Marseille Université, CNRS, Laboratoire Chimie Bactérienne, Institut Microbiologie de la Méditerranée, 31 Chemin Joseph Aiguier, Marseille 13009, France
| | - Yohann Couté
- Univ. Grenoble Alpes, CEA, Inserm, BIG-BGE, 38000 Grenoble, France
| | - Marc Fontecave
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, PSL Research University, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Frédéric Barras
- Aix Marseille Université, CNRS, Laboratoire Chimie Bactérienne, Institut Microbiologie de la Méditerranée, 31 Chemin Joseph Aiguier, Marseille 13009, France; SAMe Unit, Department de Microbiologie, Institut Pasteur, 25 Rue du Dr Roux, 75015 Paris, France
| | - Murielle Lombard
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, PSL Research University, 11 Place Marcelin Berthelot, 75005 Paris, France
| | - Fabien Pierrel
- Univ. Grenoble Alpes, CNRS, Grenoble INP, TIMC-IMAG, 38000 Grenoble, France.
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Gianotti AR, Ferreyra RG, Ermácora MR. Binding properties of sterol carrier protein 2 (SCP2) characterized using Laurdan. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1866:1143-1152. [DOI: 10.1016/j.bbapap.2018.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 08/14/2018] [Accepted: 08/20/2018] [Indexed: 12/23/2022]
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4
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Redkar A, Di Pietro A. Adapt your shuttling proteins for virulence: a lesson from the corn smut fungus Ustilago maydis. THE NEW PHYTOLOGIST 2018; 220:353-356. [PMID: 30238483 DOI: 10.1111/nph.15429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Amey Redkar
- Department of Genetics, University of Córdoba, 14071, Córdoba, Spain
| | - Antonio Di Pietro
- Department of Genetics, University of Córdoba, 14071, Córdoba, Spain
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5
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Krombach S, Reissmann S, Kreibich S, Bochen F, Kahmann R. Virulence function of the Ustilago maydis sterol carrier protein 2. THE NEW PHYTOLOGIST 2018; 220:553-566. [PMID: 29897130 DOI: 10.1111/nph.15268] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/14/2018] [Indexed: 05/06/2023]
Abstract
The peroxisomal sterol carrier protein 2 (Scp2) of the biotrophic maize pathogen Ustilago maydis was detected in apoplastic fluid, suggesting that it might function as a secreted effector protein. Here we analyze the role of the scp2 gene during plant colonization. We used reverse genetics approaches to delete the scp2 gene, determined stress sensitivity and fatty acid utilization of mutants, demonstrated secretion of Scp2, used quantitative reverse transcription polymerase chain reaction for expression analysis and expressed GFP-Scp2 fusion proteins for protein localization. scp2 mutants were strongly attenuated in virulence and this defect manifested itself during penetration. Scp2 localized to peroxisomes and peroxisomal targeting was necessary for its virulence function. Deletion of scp2 in U. maydis interfered neither with growth nor with peroxisomal β-oxidation. Conventionally secreted Scp2 protein could not rescue the virulence defect. scp2 mutants displayed an altered localization of peroxisomes. Our results show a virulence function for Scp2 during penetration that is probably carried out by Scp2 in peroxisomes. We speculate that Scp2 affects the lipid composition of membranes and in this way ensures the even cellular distribution of peroxisomes.
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Affiliation(s)
- Sina Krombach
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse 10, 35043, Marburg, Germany
| | - Stefanie Reissmann
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse 10, 35043, Marburg, Germany
| | - Saskia Kreibich
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse 10, 35043, Marburg, Germany
| | - Florian Bochen
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse 10, 35043, Marburg, Germany
| | - Regine Kahmann
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Strasse 10, 35043, Marburg, Germany
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Roversi P, Johnson S, Preston SG, Nunn MA, Paesen GC, Austyn JM, Nuttall PA, Lea SM. Structural basis of cholesterol binding by a novel clade of dendritic cell modulators from ticks. Sci Rep 2017; 7:16057. [PMID: 29167574 PMCID: PMC5700055 DOI: 10.1038/s41598-017-16413-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/13/2017] [Indexed: 12/13/2022] Open
Abstract
Two crystal structures of Japanin, an 18 kDa immune-modulatory lipocalin from the Brown Ear Tick (Rhipicephalus appendiculatus), have been determined at 2.2 and 2.4 Å resolution. In both crystal forms the protein is in complex with cholesterol, which sits in a closed pocket at the centre of the lipocalin barrel. Both crystal forms are dimers, which are also observed in solution. Molecular modelling suggests that previously-described members of a tick protein family bearing high sequence homology to Japanin are also likely to bind cholesterol or cholesterol derivatives.
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Affiliation(s)
- Pietro Roversi
- Biochemistry Department, University of Oxford, Oxford, OX1 3QU, England, United Kingdom. .,Leicester Institute of Structural and Chemical Biology, Department of Molecular and Cell Biology, University of Leicester, Henry Wellcome Building, Lancaster Road, Leicester, LE1 7RH, England, United Kingdom.
| | - Steven Johnson
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, England, United Kingdom
| | - Stephen G Preston
- Department of Zoology, University of Oxford, Oxford, OX1 3PS, England, United Kingdom
| | - Miles A Nunn
- Akari Therapeutics, Plc, 75/76 Wimpole Street, London, W1G 9RT, England, United Kingdom
| | - Guido C Paesen
- Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, OX3 7BN, United Kingdom
| | - Jonathan M Austyn
- Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford, Oxford, OX3 9DU, England, United Kingdom
| | - Patricia A Nuttall
- Department of Zoology, University of Oxford, Oxford, OX1 3PS, England, United Kingdom
| | - Susan M Lea
- Sir William Dunn School of Pathology, University of Oxford, Oxford, OX1 3RE, England, United Kingdom.
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Loiseau L, Fyfe C, Aussel L, Hajj Chehade M, Hernández SB, Faivre B, Hamdane D, Mellot-Draznieks C, Rascalou B, Pelosi L, Velours C, Cornu D, Lombard M, Casadesús J, Pierrel F, Fontecave M, Barras F. The UbiK protein is an accessory factor necessary for bacterial ubiquinone (UQ) biosynthesis and forms a complex with the UQ biogenesis factor UbiJ. J Biol Chem 2017; 292:11937-11950. [PMID: 28559279 DOI: 10.1074/jbc.m117.789164] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 05/08/2017] [Indexed: 11/06/2022] Open
Abstract
Ubiquinone (UQ), also referred to as coenzyme Q, is a widespread lipophilic molecule in both prokaryotes and eukaryotes in which it primarily acts as an electron carrier. Eleven proteins are known to participate in UQ biosynthesis in Escherichia coli, and we recently demonstrated that UQ biosynthesis requires additional, nonenzymatic factors, some of which are still unknown. Here, we report on the identification of a bacterial gene, yqiC, which is required for efficient UQ biosynthesis, and which we have renamed ubiK Using several methods, we demonstrated that the UbiK protein forms a complex with the C-terminal part of UbiJ, another UQ biogenesis factor we previously identified. We found that both proteins are likely to contribute to global UQ biosynthesis rather than to a specific biosynthetic step, because both ubiK and ubiJ mutants accumulated octaprenylphenol, an early intermediate of the UQ biosynthetic pathway. Interestingly, we found that both proteins are dispensable for UQ biosynthesis under anaerobiosis, even though they were expressed in the absence of oxygen. We also provide evidence that the UbiK-UbiJ complex interacts with palmitoleic acid, a major lipid in E. coli Last, in Salmonella enterica, ubiK was required for proliferation in macrophages and virulence in mice. We conclude that although the role of the UbiK-UbiJ complex remains unknown, our results support the hypothesis that UbiK is an accessory factor of Ubi enzymes and facilitates UQ biosynthesis by acting as an assembly factor, a targeting factor, or both.
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Affiliation(s)
- Laurent Loiseau
- Aix Marseille Université, CNRS, Laboratoire de Chimie Bactérienne (LCB) UMR 7283, Institut de Microbiologie de la Méditerranée (IMM), 13402, Marseille, France
| | - Cameron Fyfe
- Laboratoire de Chimie des Processus Biologiques, UMR8229 CNRS, Collège de France, Université Pierre et Marie Curie, 11 place Marcelin Berthelot, 75 231 Paris Cedex 05, France
| | - Laurent Aussel
- Aix Marseille Université, CNRS, Laboratoire de Chimie Bactérienne (LCB) UMR 7283, Institut de Microbiologie de la Méditerranée (IMM), 13402, Marseille, France
| | - Mahmoud Hajj Chehade
- University Grenoble Alpes, Laboratoire Technologies de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Techniques de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Grenoble (TIMC-IMAG), UMR 5525, 38000 Grenoble, France; CNRS, TIMC-IMAG, 38000 Grenoble, France
| | - Sara B Hernández
- Departamento de Genética, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Bruno Faivre
- Laboratoire de Chimie des Processus Biologiques, UMR8229 CNRS, Collège de France, Université Pierre et Marie Curie, 11 place Marcelin Berthelot, 75 231 Paris Cedex 05, France
| | - Djemel Hamdane
- Laboratoire de Chimie des Processus Biologiques, UMR8229 CNRS, Collège de France, Université Pierre et Marie Curie, 11 place Marcelin Berthelot, 75 231 Paris Cedex 05, France
| | - Caroline Mellot-Draznieks
- Laboratoire de Chimie des Processus Biologiques, UMR8229 CNRS, Collège de France, Université Pierre et Marie Curie, 11 place Marcelin Berthelot, 75 231 Paris Cedex 05, France
| | - Bérengère Rascalou
- University Grenoble Alpes, Laboratoire Technologies de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Techniques de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Grenoble (TIMC-IMAG), UMR 5525, 38000 Grenoble, France; CNRS, TIMC-IMAG, 38000 Grenoble, France
| | - Ludovic Pelosi
- University Grenoble Alpes, Laboratoire Technologies de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Techniques de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Grenoble (TIMC-IMAG), UMR 5525, 38000 Grenoble, France; CNRS, TIMC-IMAG, 38000 Grenoble, France
| | - Christophe Velours
- Institut de Biologie Integrative de la cellule, Plateforme Interactions des Macromolécules, I2BC, UMR 9198 CNRS, Bât 430F, 91405 Orsay Cedex, France
| | - David Cornu
- Institut de Biologie Integrative de la cellule, Plateforme SICaPS, I2BC, CNRS, Centre de Recherche de Gif, SICaPS, F-91198 Gif-sur-Yvette Cedex, France
| | - Murielle Lombard
- Laboratoire de Chimie des Processus Biologiques, UMR8229 CNRS, Collège de France, Université Pierre et Marie Curie, 11 place Marcelin Berthelot, 75 231 Paris Cedex 05, France
| | - Josep Casadesús
- Departamento de Genética, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Fabien Pierrel
- University Grenoble Alpes, Laboratoire Technologies de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Techniques de l'Ingénierie Médicale et de la Complexité-Informatique, Mathématiques et Applications, Grenoble (TIMC-IMAG), UMR 5525, 38000 Grenoble, France; CNRS, TIMC-IMAG, 38000 Grenoble, France.
| | - Marc Fontecave
- Laboratoire de Chimie des Processus Biologiques, UMR8229 CNRS, Collège de France, Université Pierre et Marie Curie, 11 place Marcelin Berthelot, 75 231 Paris Cedex 05, France.
| | - Frédéric Barras
- Aix Marseille Université, CNRS, Laboratoire de Chimie Bactérienne (LCB) UMR 7283, Institut de Microbiologie de la Méditerranée (IMM), 13402, Marseille, France.
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8
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A structural appraisal of sterol carrier protein 2. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2017; 1865:565-577. [DOI: 10.1016/j.bbapap.2017.03.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 03/03/2017] [Accepted: 03/07/2017] [Indexed: 11/19/2022]
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9
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Cheng Z, Li Y, Sui C, Sun X, Xie Y. Synthesis, purification and crystallographic studies of the C-terminal sterol carrier protein type 2 (SCP-2) domain of human hydroxysteroid dehydrogenase-like protein 2. Acta Crystallogr F Struct Biol Commun 2015; 71:901-5. [PMID: 26144236 PMCID: PMC4498712 DOI: 10.1107/s2053230x15008559] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 05/01/2015] [Indexed: 11/11/2022] Open
Abstract
Human hydroxysteroid dehydrogenase-like protein 2 (HSDL2) is a member of the short-chain dehydrogenase/reductase (SDR) subfamily of oxidoreductases and contains an N-terminal catalytic domain and a C-termianl sterol carrier protein type 2 (SCP-2) domain. In this study, the C-terminal SCP-2 domain of human HSDL2, including residues Lys318-Arg416, was produced in Escherichia coli, purified and crystallized. X-ray diffraction data were collected to 2.10 Å resolution. The crystal belonged to the trigonal space group P3(1)21 (or P3(2)21), with unit-cell parameters a = b = 70.4, c = 60.6 Å, α = β = 90, γ = 120°. Two protein molecules are present in the asymmetric unit, resulting in a Matthews coefficient of 2.16 Å(3) Da(-1) and an approximate solvent content of 43%.
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Affiliation(s)
- Zhong Cheng
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, People’s Republic of China
| | - Yao Li
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, People’s Republic of China
| | - Chun Sui
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, People’s Republic of China
| | - Xiaobo Sun
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, People’s Republic of China
| | - Yong Xie
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, People’s Republic of China
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Curto LM, Angelani CR, Delfino JM. Intervening in the β-barrel structure of lipid binding proteins: consequences on folding, ligand-binding and aggregation propensity. Prostaglandins Leukot Essent Fatty Acids 2015; 93:37-43. [PMID: 25242388 DOI: 10.1016/j.plefa.2014.08.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 07/26/2014] [Accepted: 08/01/2014] [Indexed: 02/02/2023]
Abstract
Natural β-folds manage to fold up successfully. By contrast, attempts to dissect fragments or peptides from well folded β-sheet proteins have met with insurmountable difficulties. Here we briefly review selected successful cases of intervention on the well-known scaffold of intestinal fatty acid binding protein (IFABP). Lessons from these examples might set guidelines along the design of proteins belonging to this class. Impact of modifications on topology, binding and aggregation is highlighted. With the aid of abridged variants of IFABP we focus on key structural features responsible for the assembly into oligomeric forms or aggregates.
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Affiliation(s)
- L M Curto
- Department of Biological Chemistry and Institute of Biochemistry and Biophysics (IQUIFIB), School of Pharmacy and Biochemistry, University of Buenos Aires, Junín 956, C1113AAD Buenos Aires, Argentina
| | - C R Angelani
- Department of Biological Chemistry and Institute of Biochemistry and Biophysics (IQUIFIB), School of Pharmacy and Biochemistry, University of Buenos Aires, Junín 956, C1113AAD Buenos Aires, Argentina
| | - J M Delfino
- Department of Biological Chemistry and Institute of Biochemistry and Biophysics (IQUIFIB), School of Pharmacy and Biochemistry, University of Buenos Aires, Junín 956, C1113AAD Buenos Aires, Argentina.
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