1cqz: Difference between revisions
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[[Image:1cqz.jpg|left|200px]] | [[Image:1cqz.jpg|left|200px]] | ||
'''CRYSTAL STRUCTURE OF MURINE SOLUBLE EPOXIDE HYDROLASE.''' | {{Structure | ||
|PDB= 1cqz |SIZE=350|CAPTION= <scene name='initialview01'>1cqz</scene>, resolution 2.8Å | |||
|SITE= | |||
|LIGAND= | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Microsomal_epoxide_hydrolase Microsomal epoxide hydrolase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.3.2.9 3.3.2.9] | |||
|GENE= | |||
}} | |||
'''CRYSTAL STRUCTURE OF MURINE SOLUBLE EPOXIDE HYDROLASE.''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1CQZ is a [ | 1CQZ is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CQZ OCA]. | ||
==Reference== | ==Reference== | ||
Detoxification of environmental mutagens and carcinogens: structure, mechanism, and evolution of liver epoxide hydrolase., Argiriadi MA, Morisseau C, Hammock BD, Christianson DW, Proc Natl Acad Sci U S A. 1999 Sep 14;96(19):10637-42. PMID:[http:// | Detoxification of environmental mutagens and carcinogens: structure, mechanism, and evolution of liver epoxide hydrolase., Argiriadi MA, Morisseau C, Hammock BD, Christianson DW, Proc Natl Acad Sci U S A. 1999 Sep 14;96(19):10637-42. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10485878 10485878] | ||
[[Category: Microsomal epoxide hydrolase]] | [[Category: Microsomal epoxide hydrolase]] | ||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
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[[Category: homodimer]] | [[Category: homodimer]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 10:27:48 2008'' | ||
Revision as of 08:27, 20 March 2008
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| 1cqz, resolution 2.8Å | |||||||||||||
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| Activity: | Microsomal epoxide hydrolase, with EC number 3.3.2.9 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
CRYSTAL STRUCTURE OF MURINE SOLUBLE EPOXIDE HYDROLASE.
Overview
The crystal structure of recombinant murine liver cytosolic epoxide hydrolase (EC 3.3.2.3) has been determined at 2.8-A resolution. The binding of a nanomolar affinity inhibitor confirms the active site location in the C-terminal domain; this domain is similar to that of haloalkane dehalogenase and shares the alpha/beta hydrolase fold. A structure-based mechanism is proposed that illuminates the unique chemical strategy for the activation of endogenous and man-made epoxide substrates for hydrolysis and detoxification. Surprisingly, a vestigial active site is found in the N-terminal domain similar to that of another enzyme of halocarbon metabolism, haloacid dehalogenase. Although the vestigial active site does not participate in epoxide hydrolysis, the vestigial domain plays a critical structural role by stabilizing the dimer in a distinctive domain-swapped architecture. Given the genetic and structural relationships among these enzymes of xenobiotic metabolism, a structure-based evolutionary sequence is postulated.
About this Structure
1CQZ is a Single protein structure of sequence from Mus musculus. Full crystallographic information is available from OCA.
Reference
Detoxification of environmental mutagens and carcinogens: structure, mechanism, and evolution of liver epoxide hydrolase., Argiriadi MA, Morisseau C, Hammock BD, Christianson DW, Proc Natl Acad Sci U S A. 1999 Sep 14;96(19):10637-42. PMID:10485878
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