1a8q: Difference between revisions
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[[Image:1a8q.gif|left|200px]]<br /> | [[Image:1a8q.gif|left|200px]]<br /><applet load="1a8q" size="450" color="white" frame="true" align="right" spinBox="true" | ||
<applet load="1a8q" size="450" color="white" frame="true" align="right" spinBox="true" | |||
caption="1a8q, resolution 1.75Å" /> | caption="1a8q, resolution 1.75Å" /> | ||
'''BROMOPEROXIDASE A1'''<br /> | '''BROMOPEROXIDASE A1'''<br /> | ||
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==About this Structure== | ==About this Structure== | ||
1A8Q is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Streptomyces_aureofaciens Streptomyces aureofaciens]. Active as [http://en.wikipedia.org/wiki/Chloride_peroxidase Chloride peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.10 1.11.1.10] | 1A8Q is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Streptomyces_aureofaciens Streptomyces aureofaciens]. Active as [http://en.wikipedia.org/wiki/Chloride_peroxidase Chloride peroxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.10 1.11.1.10] Known structural/functional Site: <scene name='pdbsite=NUL:Catalytic Triad'>NUL</scene>. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1A8Q OCA]. | ||
==Reference== | ==Reference== | ||
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[[Category: oxidoreductase]] | [[Category: oxidoreductase]] | ||
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Revision as of 15:01, 18 December 2007
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BROMOPEROXIDASE A1
OverviewOverview
The structures of cofactor-free haloperoxidases from Streptomyces, aureofaciens, Streptomyces lividans, and Pseudomonas fluorescens have been, determined at resolutions between 1.9 A and 1.5 A. The structures of two, enzymes complexed with benzoate or propionate identify the binding site, for the organic acids which are required for the haloperoxidase activity., Based on these complexes and on the structure of an inactive variant, a, reaction mechanism is proposed for the halogenation reaction with, peroxoacid and hypohalous acid as reaction intermediates. Comparison of, the structures suggests that a specific halide binding site is absent in, the enzymes but that hydrophobic organic compounds may fit into the active, site pocket for halogenation at preferential sites.
About this StructureAbout this Structure
1A8Q is a Single protein structure of sequence from Streptomyces aureofaciens. Active as Chloride peroxidase, with EC number 1.11.1.10 Known structural/functional Site: . Full crystallographic information is available from OCA.
ReferenceReference
Structural investigation of the cofactor-free chloroperoxidases., Hofmann B, Tolzer S, Pelletier I, Altenbuchner J, van Pee KH, Hecht HJ, J Mol Biol. 1998 Jun 19;279(4):889-900. PMID:9642069
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