2rfa

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[[Image:2rfa.jpg|left|200px]]
[[Image:2rfa.jpg|left|200px]]
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{{Structure
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|PDB= 2rfa |SIZE=350|CAPTION= <scene name='initialview01'>2rfa</scene>, resolution 1.700&Aring;
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The line below this paragraph, containing "STRUCTURE_2rfa", creates the "Structure Box" on the page.
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|GENE= Trpv6 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])
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{{STRUCTURE_2rfa| PDB=2rfa | SCENE= }}
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2rfa FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2rfa OCA], [http://www.ebi.ac.uk/pdbsum/2rfa PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2rfa RCSB]</span>
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'''Crystal structure of the mouse TRPV6 ankyrin repeat domain'''
'''Crystal structure of the mouse TRPV6 ankyrin repeat domain'''
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[[Category: Phelps, C B.]]
[[Category: Phelps, C B.]]
[[Category: Wang, R R.]]
[[Category: Wang, R R.]]
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[[Category: ank repeat]]
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[[Category: Ank repeat]]
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[[Category: ankyrin reapeat]]
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[[Category: Ankyrin reapeat]]
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[[Category: calcium]]
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[[Category: Calcium]]
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[[Category: calcium channel]]
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[[Category: Calcium channel]]
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[[Category: calcium transport]]
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[[Category: Calcium transport]]
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[[Category: calmodulin-binding]]
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[[Category: Calmodulin-binding]]
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[[Category: glycoprotein]]
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[[Category: Glycoprotein]]
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[[Category: ion transport]]
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[[Category: Ion transport]]
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[[Category: ionic channel]]
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[[Category: Ionic channel]]
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[[Category: membrane]]
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[[Category: Membrane]]
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[[Category: membrane protein]]
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[[Category: Membrane protein]]
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[[Category: transient receptor potential]]
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[[Category: Transient receptor potential]]
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[[Category: transmembrane]]
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[[Category: Transmembrane]]
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[[Category: transport]]
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[[Category: Transport]]
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[[Category: trpv6]]
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[[Category: Trpv6]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 16:47:54 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 04:59:46 2008''
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Revision as of 13:47, 4 May 2008

Image:2rfa.jpg

Template:STRUCTURE 2rfa

Crystal structure of the mouse TRPV6 ankyrin repeat domain


Overview

Transient receptor potential (TRP) proteins are cation channels composed of a transmembrane domain flanked by large N- and C-terminal cytoplasmic domains. All members of the vanilloid family of TRP channels (TRPV) possess an N-terminal ankyrin repeat domain (ARD). The ARD of mammalian TRPV6, an important regulator of calcium uptake and homeostasis, is essential for channel assembly and regulation. The 1.7 A crystal structure of the TRPV6-ARD reveals conserved structural elements unique to the ARDs of TRPV proteins. First, a large twist between the fourth and fifth repeats is induced by residues conserved in all TRPV ARDs. Second, the third finger loop is the most variable region in sequence, length and conformation. In TRPV6, a number of putative regulatory phosphorylation sites map to the base of this third finger. Size exclusion chromatography and crystal packing indicate that the TRPV6-ARD does not assemble as a tetramer and is monomeric in solution. Adenosine triphosphate-agarose and calmodulin-agarose pull-down assays show that the TRPV6-ARD does not interact with either ligand, indicating a different functional role for the TRPV6-ARD than in the paralogous thermosensitive TRPV1 channel. Similar biochemical findings are also presented for the highly homologous mammalian TRPV5-ARD. The implications of the structural and biochemical data on the role of the ankyrin repeats in different TRPV channels are discussed.

About this Structure

2RFA is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.

Reference

Structural Analyses of the Ankyrin Repeat Domain of TRPV6 and Related TRPV Ion Channels(,)., Phelps CB, Huang RJ, Lishko PV, Wang RR, Gaudet R, Biochemistry. 2008 Feb 26;47(8):2476-84. Epub 2008 Jan 31. PMID:18232717 Page seeded by OCA on Sun May 4 16:47:54 2008

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