1rc2

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{{STRUCTURE_1rc2| PDB=1rc2 | SCENE= }}
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'''2.5 Angstrom Resolution X-ray Structure of Aquaporin Z'''
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===2.5 Angstrom Resolution X-ray Structure of Aquaporin Z===
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==Overview==
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Aquaporins are a family of water and small molecule channels found in organisms ranging from bacteria to animals. One of these channels, the E. coli protein aquaporin Z (AqpZ), has been shown to selectively conduct only water at high rates. We have expressed, purified, crystallized, and solved the X-ray structure of AqpZ. The 2.5 A resolution structure of AqpZ suggests aquaporin selectivity results both from a steric mechanism due to pore size and from specific amino acid substitutions that regulate the preference for a hydrophobic or hydrophilic substrate. This structure provides direct evidence on the molecular mechanisms of specificity between water and glycerol in this family of channels from a single species. It is to our knowledge the first atomic resolution structure of a recombinant aquaporin and so provides a platform for combined genetic, mutational, functional, and structural determinations of the mechanisms of aquaporins and, more generally, the assembly of multimeric membrane proteins.
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{{ABSTRACT_PUBMED_14691544}}
==About this Structure==
==About this Structure==
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[[Category: Aquaporin]]
[[Category: Aquaporin]]
[[Category: Membrane protein]]
[[Category: Membrane protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 07:19:13 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 04:41:46 2008''

Revision as of 01:41, 28 July 2008

Image:1rc2.png

Template:STRUCTURE 1rc2

2.5 Angstrom Resolution X-ray Structure of Aquaporin Z

Template:ABSTRACT PUBMED 14691544

About this Structure

1RC2 is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Architecture and selectivity in aquaporins: 2.5 a X-ray structure of aquaporin Z., Savage DF, Egea PF, Robles-Colmenares Y, O'Connell JD 3rd, Stroud RM, PLoS Biol. 2003 Dec;1(3):E72. Epub 2003 Dec 22. PMID:14691544

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