1w96
From Proteopedia
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==Overview== | ==Overview== | ||
| - | Acetyl-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid | + | Acetyl-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid metabolism. Soraphen A, a macrocyclic polyketide natural product, is a nanomolar inhibitor against the biotin carboxylase (BC) domain of human, yeast, and other eukaryotic ACCs. Here we report the crystal structures of the yeast BC domain, alone and in complex with soraphen A. Soraphen has extensive interactions with an allosteric site, about 25 A from the active site. The specificity of soraphen is explained by large structural differences between the eukaryotic and prokaryotic BC in its binding site, confirmed by our studies on the effects of single-site mutations in this binding site. Unexpectedly, our structures suggest that soraphen may bind in the BC dimer interface and inhibit the BC activity by disrupting the oligomerization of this domain. Observations from native gel electrophoresis confirm this structural insight. The structural information provides a foundation for structure-based design of new inhibitors against these enzymes. |
==About this Structure== | ==About this Structure== | ||
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[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| - | [[Category: Elich, T | + | [[Category: Elich, T D.]] |
[[Category: Shen, Y.]] | [[Category: Shen, Y.]] | ||
[[Category: Tong, L.]] | [[Category: Tong, L.]] | ||
| - | [[Category: Volrath, S | + | [[Category: Volrath, S L.]] |
| - | [[Category: Weatherly, S | + | [[Category: Weatherly, S C.]] |
[[Category: S1A]] | [[Category: S1A]] | ||
[[Category: allosteric inhibition]] | [[Category: allosteric inhibition]] | ||
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[[Category: structure-based drug design]] | [[Category: structure-based drug design]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:41:50 2008'' |
Revision as of 13:41, 21 February 2008
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CRYSTAL STRUCTURE OF BIOTIN CARBOXYLASE DOMAIN OF ACETYL-COENZYME A CARBOXYLASE FROM SACCHAROMYCES CEREVISIAE IN COMPLEX WITH SORAPHEN A
Overview
Acetyl-coenzyme A carboxylases (ACCs) have crucial roles in fatty acid metabolism. Soraphen A, a macrocyclic polyketide natural product, is a nanomolar inhibitor against the biotin carboxylase (BC) domain of human, yeast, and other eukaryotic ACCs. Here we report the crystal structures of the yeast BC domain, alone and in complex with soraphen A. Soraphen has extensive interactions with an allosteric site, about 25 A from the active site. The specificity of soraphen is explained by large structural differences between the eukaryotic and prokaryotic BC in its binding site, confirmed by our studies on the effects of single-site mutations in this binding site. Unexpectedly, our structures suggest that soraphen may bind in the BC dimer interface and inhibit the BC activity by disrupting the oligomerization of this domain. Observations from native gel electrophoresis confirm this structural insight. The structural information provides a foundation for structure-based design of new inhibitors against these enzymes.
About this Structure
1W96 is a Single protein structure of sequence from Saccharomyces cerevisiae with as ligand. Active as Acetyl-CoA carboxylase, with EC number 6.4.1.2 Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
A mechanism for the potent inhibition of eukaryotic acetyl-coenzyme A carboxylase by soraphen A, a macrocyclic polyketide natural product., Shen Y, Volrath SL, Weatherly SC, Elich TD, Tong L, Mol Cell. 2004 Dec 22;16(6):881-91. PMID:15610732
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