1ac5: Difference between revisions
From Proteopedia
Jump to navigationJump to search
m Protected "1ac5" [edit=sysop:move=sysop] |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image: | ==CRYSTAL STRUCTURE OF KEX1(DELTA)P, A PROHORMONE-PROCESSING CARBOXYPEPTIDASE FROM SACCHAROMYCES CEREVISIAE== | ||
<StructureSection load='1ac5' size='340' side='right' caption='[[1ac5]], [[Resolution|resolution]] 2.40Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1ac5]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1AC5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1AC5 FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene><br> | |||
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Carboxypeptidase_D Carboxypeptidase D], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.16.6 3.4.16.6] </span></td></tr> | |||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ac5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ac5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1ac5 RCSB], [http://www.ebi.ac.uk/pdbsum/1ac5 PDBsum]</span></td></tr> | |||
<table> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ac/1ac5_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Kex1p is a prohormone-processing serine carboxypeptidase found in Saccharomyces cerevisiae. In contrast to yeast serine carboxypeptidase (CPD-Y) and wheat serine carboxypeptidase II (CPDW-II), Kex1p displays a very narrow specificity for lysyl or arginyl residues at the C-terminus of the substrate. The structure of Kex1Deltap, an enzyme that lacks the acidic domain and membrane-spanning portion of Kex1p, has been solved by a combination of molecular replacement and multiple isomorphous replacement and refined to a resolution of 2.4 A. The S1' site of Kex1Deltap is sterically restricted compared to those from CPD-Y or CPDW-II; it also contains two acidic groups that are well positioned to interact with the basic group of a lysine or arginine side chain. The high specificity of Kex1p can therefore be explained by a combination of steric and electronic factors. The structure of the S1 site of Kex1Deltap is also well suited for binding of a lysine or arginine side chain, and the enzyme may therefore exhibit a preference for these residues at P1. | |||
Crystal structure of Kex1deltap, a prohormone-processing carboxypeptidase from Saccharomyces cerevisiae,.,Shilton BH, Thomas DY, Cygler M Biochemistry. 1997 Jul 22;36(29):9002-12. PMID:9220988<ref>PMID:9220988</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
== | __TOC__ | ||
</StructureSection> | |||
[[Category: Carboxypeptidase D]] | [[Category: Carboxypeptidase D]] | ||
[[Category: Saccharomyces cerevisiae]] | [[Category: Saccharomyces cerevisiae]] | ||
