1e5t
From Proteopedia
(New page: 200px<br /> <applet load="1e5t" size="450" color="white" frame="true" align="right" spinBox="true" caption="1e5t, resolution 1.7Å" /> '''PROLYL OLIGOPEPTIDAS...) |
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==About this Structure== | ==About this Structure== | ||
| - | 1E5T is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]] with GOL as [[http://en.wikipedia.org/wiki/ligand ligand]]. Active as [[http://en.wikipedia.org/wiki/ ]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.26 3.4.21.26]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1E5T OCA]]. | + | 1E5T is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]] with GOL as [[http://en.wikipedia.org/wiki/ligand ligand]]. Active as [[http://en.wikipedia.org/wiki/Hydrolase Hydrolase]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.26 3.4.21.26]]. Structure known Active Sites: AS and SS. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1E5T OCA]]. |
==Reference== | ==Reference== | ||
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[[Category: prolyl oligopeptidase]] | [[Category: prolyl oligopeptidase]] | ||
| - | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Oct 30 08:49:51 2007'' |
Revision as of 06:45, 30 October 2007
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PROLYL OLIGOPEPTIDASE FROM PORCINE BRAIN, MUTANT
Overview
Proteases have a variety of strategies for selecting substrates in order, to prevent uncontrolled protein degradation. A recent crystal structure, determination of prolyl oligopeptidase has suggested a way for substrate, selection involving an unclosed seven-bladed beta-propeller domain. We, have engineered a disulfide bond between the first and seventh blades of, the propeller, which resulted in the loss of enzymatic activity. These, results provided direct evidence for a novel strategy of regulation in, which oscillating propeller blades act as a gating filter during, catalysis, letting small peptide substrates into the active site while, excluding large proteins to prevent accidental proteolysis.
About this Structure
1E5T is a [Single protein] structure of sequence from [Sus scrofa] with GOL as [ligand]. Active as [Hydrolase], with EC number [3.4.21.26]. Structure known Active Sites: AS and SS. Full crystallographic information is available from [OCA].
Reference
Catalysis of serine oligopeptidases is controlled by a gating filter mechanism., Fulop V, Szeltner Z, Polgar L, EMBO Rep. 2000 Sep;1(3):277-81. PMID:11256612
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