1wfb
From Proteopedia
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'''WINTER FLOUNDER ANTIFREEZE PROTEIN ISOFORM HPLC6 AT-180 DEGREES C''' | '''WINTER FLOUNDER ANTIFREEZE PROTEIN ISOFORM HPLC6 AT-180 DEGREES C''' | ||
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[[Category: Sicheri, F.]] | [[Category: Sicheri, F.]] | ||
[[Category: Yang, D S.C.]] | [[Category: Yang, D S.C.]] | ||
| - | [[Category: | + | [[Category: Ice binding protein]] |
| - | [[Category: | + | [[Category: Thermal hysteresis protein]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 13:34:39 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 10:34, 3 May 2008
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| 1wfb, resolution 1.50Å () | |||||||||
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| Non-Standard Residues: | |||||||||
| Related: | 1wfa | ||||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||
WINTER FLOUNDER ANTIFREEZE PROTEIN ISOFORM HPLC6 AT-180 DEGREES C
Overview
Antifreeze proteins provide fish with protection against the freezing effect of polar environments by binding to ice surfaces and inhibiting growth of ice crystals. We present the X-ray crystal structure at 1.5 A resolution of a lone alpha-helical antifreeze protein from winter flounder, which provides a detailed look at its ice-binding features. These consist of four repeated ice-binding motifs, the side chains of which are inherently rigid or restrained by pair-wise side-chain interactions to form a flat binding surface. Elaborate amino- and carboxy-terminal cap structures are also present, which explain the protein's rich alpha-helical content in solution. We propose an ice-binding model that accounts for the binding specificity of the antifreeze protein along the <0112> axes of the (2021) ice planes.
About this Structure
1WFB is a Single protein structure of sequence from Pseudopleuronectes americanus. Full crystallographic information is available from OCA.
Reference
Ice-binding structure and mechanism of an antifreeze protein from winter flounder., Sicheri F, Yang DS, Nature. 1995 Jun 1;375(6530):427-31. PMID:7760940 Page seeded by OCA on Sat May 3 13:34:39 2008
