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1ot5
From Proteopedia
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[[Image:1ot5.gif|left|200px]] | [[Image:1ot5.gif|left|200px]] | ||
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'''The 2.4 Angstrom Crystal Sructure of Kex2 in complex with a peptidyl-boronic acid inhibitor''' | '''The 2.4 Angstrom Crystal Sructure of Kex2 in complex with a peptidyl-boronic acid inhibitor''' | ||
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[[Category: Ringe, D.]] | [[Category: Ringe, D.]] | ||
[[Category: Wilson, M A.]] | [[Category: Wilson, M A.]] | ||
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| - | [[Category: | + | [[Category: Peptidyl-boronic acid]] |
| - | [[Category: | + | [[Category: Serine protease]] |
| - | [[Category: | + | [[Category: Subtilisin fold]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:15:10 2008'' | |
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Revision as of 01:15, 3 May 2008
The 2.4 Angstrom Crystal Sructure of Kex2 in complex with a peptidyl-boronic acid inhibitor
Overview
This paper reports the first structure of a member of the Kex2/furin family of eukaryotic pro-protein processing proteases, which cleave sites consisting of pairs or clusters of basic residues. Reported is the 2.4 A resolution crystal structure of the two-domain protein ssKex2 in complex with an Ac-Ala-Lys-boroArg inhibitor (R = 20.9%, R(free) = 24.5%). The Kex2 proteolytic domain is similar in its global fold to the subtilisin-like superfamily of degradative proteases. Analysis of the complex provides a structural basis for the extreme selectivity of this enzyme family that has evolved from a nonspecific subtilisin-like ancestor. The P-domain of ssKex2 has a novel jelly roll like fold consisting of nine beta strands and may potentially be involved, along with the buried Ca(2+) ion, in creating the highly determined binding site for P(1) arginine.
About this Structure
1OT5 is a Single protein structure of sequence from Saccharomyces cerevisiae. Full crystallographic information is available from OCA.
Reference
2.4 A resolution crystal structure of the prototypical hormone-processing protease Kex2 in complex with an Ala-Lys-Arg boronic acid inhibitor., Holyoak T, Wilson MA, Fenn TD, Kettner CA, Petsko GA, Fuller RS, Ringe D, Biochemistry. 2003 Jun 10;42(22):6709-18. PMID:12779325 Page seeded by OCA on Sat May 3 04:15:10 2008
