1u6d

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[[Image:1u6d.gif|left|200px]]
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{{Seed}}
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{{STRUCTURE_1u6d| PDB=1u6d | SCENE= }}
{{STRUCTURE_1u6d| PDB=1u6d | SCENE= }}
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'''Crystal structure of the Kelch domain of human Keap1'''
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===Crystal structure of the Kelch domain of human Keap1===
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==Overview==
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Keap1 is a substrate adaptor protein for an ubiquitin ligase complex that targets the Nrf2 transcription factor for degradation. Keap1 binds Nrf2 through its C-terminal Kelch domain, which contains six copies of the evolutionarily conserved kelch repeat sequence motif. The structure of the Kelch domain from human Keap1 has been determined by x-ray crystallography to a resolution of 1.85 A. The Kelch domain forms a 6-bladed beta-propeller structure, with residues at the C terminus forming the first strand in the first blade. Key structural roles have been identified for the highly conserved glycine, tyrosine, and tryptophan residues that define the kelch repeat sequence motif. In addition, we show that substitution of a single amino acid located within a loop that extends out from the bottom of the beta-propeller structure abolishes binding of Nrf2. The structure of the Kelch domain of Keap1 represents a high quality model for the superfamily of eukaryotic kelch repeat proteins and provides insight into how disease-causing mutations perturb the structural integrity of the Kelch domain.
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The line below this paragraph, {{ABSTRACT_PUBMED_15475350}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 15475350 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15475350}}
==About this Structure==
==About this Structure==
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==Reference==
==Reference==
Crystal structure of the Kelch domain of human Keap1., Li X, Zhang D, Hannink M, Beamer LJ, J Biol Chem. 2004 Dec 24;279(52):54750-8. Epub 2004 Oct 8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15475350 15475350]
Crystal structure of the Kelch domain of human Keap1., Li X, Zhang D, Hannink M, Beamer LJ, J Biol Chem. 2004 Dec 24;279(52):54750-8. Epub 2004 Oct 8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15475350 15475350]
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Crystallization and initial crystallographic analysis of the Kelch domain from human Keap1., Li X, Zhang D, Hannink M, Beamer LJ, Acta Crystallogr D Biol Crystallogr. 2004 Dec;60(Pt 12 Pt 2):2346-8. Epub, 2004 Nov 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15583386 15583386]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: Beta-propeller]]
[[Category: Beta-propeller]]
[[Category: Kelch repeat motif]]
[[Category: Kelch repeat motif]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 07:13:19 2008''

Revision as of 04:13, 28 July 2008

Image:1u6d.png

Template:STRUCTURE 1u6d

Crystal structure of the Kelch domain of human Keap1

Template:ABSTRACT PUBMED 15475350

About this Structure

1U6D is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of the Kelch domain of human Keap1., Li X, Zhang D, Hannink M, Beamer LJ, J Biol Chem. 2004 Dec 24;279(52):54750-8. Epub 2004 Oct 8. PMID:15475350

Crystallization and initial crystallographic analysis of the Kelch domain from human Keap1., Li X, Zhang D, Hannink M, Beamer LJ, Acta Crystallogr D Biol Crystallogr. 2004 Dec;60(Pt 12 Pt 2):2346-8. Epub, 2004 Nov 26. PMID:15583386

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