1t0i

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{{STRUCTURE_1t0i| PDB=1t0i | SCENE= }}
{{STRUCTURE_1t0i| PDB=1t0i | SCENE= }}
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'''YLR011wp, a Saccharomyces cerevisiae NA(D)PH-dependent FMN reductase'''
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===YLR011wp, a Saccharomyces cerevisiae NA(D)PH-dependent FMN reductase===
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==Overview==
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Flavodoxins are involved in a variety of electron transfer reactions that are essential for life. Although FMN-binding proteins are well characterized in prokaryotic organisms, information is scarce for eukaryotic flavodoxins. We describe the 2.0-A resolution crystal structure of the Saccharomyces cerevisiae YLR011w gene product, a predicted flavoprotein. YLR011wp indeed adopts a flavodoxin fold, binds the FMN cofactor, and self-associates as a homodimer. Despite the absence of the flavodoxin key fingerprint motif involved in FMN binding, YLR011wp binds this cofactor in a manner very analogous to classical flavodoxins. YLR011wp closest structural homologue is the homodimeric Bacillus subtilis Yhda protein (25% sequence identity) whose homodimer perfectly superimposes onto the YLR011wp one. Yhda, whose function is not documented, has 53% sequence identity with the Bacillus sp. OY1-2 azoreductase. We show that YLR011wp has an NAD(P)H-dependent FMN reductase and a strong ferricyanide reductase activity. We further demonstrate a weak but specific reductive activity on azo dyes and nitrocompounds.
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{{ABSTRACT_PUBMED_15184374}}
==About this Structure==
==About this Structure==
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[[Category: Fmn binding protein]]
[[Category: Fmn binding protein]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 09:21:10 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 17:58:27 2008''

Revision as of 14:58, 27 July 2008

Image:1t0i.png

Template:STRUCTURE 1t0i

YLR011wp, a Saccharomyces cerevisiae NA(D)PH-dependent FMN reductase

Template:ABSTRACT PUBMED 15184374

About this Structure

1T0I is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.

Reference

Crystal structure and functional characterization of yeast YLR011wp, an enzyme with NAD(P)H-FMN and ferric iron reductase activities., Liger D, Graille M, Zhou CZ, Leulliot N, Quevillon-Cheruel S, Blondeau K, Janin J, van Tilbeurgh H, J Biol Chem. 2004 Aug 13;279(33):34890-7. Epub 2004 Jun 7. PMID:15184374

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