2chd
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2chd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2chd OCA], [http://www.ebi.ac.uk/pdbsum/2chd PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2chd RCSB]</span> | ||
}} | }} | ||
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[[Category: Montaville, P.]] | [[Category: Montaville, P.]] | ||
[[Category: Sheldrick, G M.]] | [[Category: Sheldrick, G M.]] | ||
| - | [[Category: GOL]] | ||
[[Category: c2 domain]] | [[Category: c2 domain]] | ||
[[Category: c2a]] | [[Category: c2a]] | ||
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[[Category: zinc-finger]] | [[Category: zinc-finger]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:21:30 2008'' |
Revision as of 23:21, 30 March 2008
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| , resolution 1.92Å | |||||||
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF THE C2A DOMAIN OF RABPHILIN-3A
Overview
Rabphilin-3A is a neuronal protein containing a C2-domain tandem. To date, only the structure of the C2B domain has been solved. The crystal structure of the Ca2+-free C2A domain has been solved by molecular replacement and refined to 1.92 A resolution. It adopts the classical C2-domain fold consisting of an eight-stranded antiparallel beta-sandwich with type I topology. In agreement with its Ca2+-dependent negatively charged membrane-binding properties, this C2 domain contains all the conserved acidic residues responsible for calcium binding. However, the replacement of a conserved aspartic acid residue by glutamic acid allows formation of an additional strong hydrogen bond, resulting in increased rigidity of calcium-binding loop 1. The electrostatic surface of the C2A domain consists of a large positively charged belt surrounded by two negatively charged patches located at both tips of the domain. In comparison, the structurally very similar C2A domain of synaptotagmin I has a highly acidic electrostatic surface, suggesting completely unrelated functions for these two C2A domains.
About this Structure
2CHD is a Single protein structure of sequence from Rattus norvegicus. Full crystallographic information is available from OCA.
Reference
Structure of the C2A domain of rabphilin-3A., Biadene M, Montaville P, Sheldrick GM, Becker S, Acta Crystallogr D Biol Crystallogr. 2006 Jul;62(Pt 7):793-9. Epub 2006, Jun 20. PMID:16790935
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