1xgu
From Proteopedia
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'''Structure for antibody HyHEL-63 Y33F mutant complexed with hen egg lysozyme''' | '''Structure for antibody HyHEL-63 Y33F mutant complexed with hen egg lysozyme''' | ||
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==About this Structure== | ==About this Structure== | ||
| - | + | Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1XGU OCA]. | |
==Reference== | ==Reference== | ||
Magnitude of the hydrophobic effect at central versus peripheral sites in protein-protein interfaces., Li Y, Huang Y, Swaminathan CP, Smith-Gill SJ, Mariuzza RA, Structure. 2005 Feb;13(2):297-307. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15698573 15698573] | Magnitude of the hydrophobic effect at central versus peripheral sites in protein-protein interfaces., Li Y, Huang Y, Swaminathan CP, Smith-Gill SJ, Mariuzza RA, Structure. 2005 Feb;13(2):297-307. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15698573 15698573] | ||
| - | [[Category: Escherichia coli]] | ||
| - | [[Category: Protein complex]] | ||
[[Category: 2 1a crystal structure]] | [[Category: 2 1a crystal structure]] | ||
| - | [[Category: | + | [[Category: Hyhel-63]] |
| - | [[Category: | + | [[Category: Y33f mutant]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 15:00:37 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 12:00, 3 May 2008
Structure for antibody HyHEL-63 Y33F mutant complexed with hen egg lysozyme
Overview
Hydrophobic interactions are essential for stabilizing protein-protein complexes, whose interfaces generally consist of a central cluster of hot spot residues surrounded by less important peripheral residues. According to the O-ring hypothesis, a condition for high affinity binding is solvent exclusion from interacting residues. This hypothesis predicts that the hydrophobicity at the center is significantly greater than at the periphery, which we estimated at 21 cal mol(-1) A(-2). To measure the hydrophobicity at the center, structures of an antigen-antibody complex where a buried phenylalanine was replaced by smaller hydrophobic residues were determined. By correlating structural changes with binding free energies, we estimate the hydrophobicity at this central site to be 46 cal mol(-1) A(-2), twice that at the periphery. This context dependence of the hydrophobic effect explains the clustering of hot spots at interface centers and has implications for hot spot prediction and the design of small molecule inhibitors.
About this Structure
Full crystallographic information is available from OCA.
Reference
Magnitude of the hydrophobic effect at central versus peripheral sites in protein-protein interfaces., Li Y, Huang Y, Swaminathan CP, Smith-Gill SJ, Mariuzza RA, Structure. 2005 Feb;13(2):297-307. PMID:15698573 Page seeded by OCA on Sat May 3 15:00:37 2008
