1bhe: Difference between revisions
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[[Image: | ==POLYGALACTURONASE FROM ERWINIA CAROTOVORA SSP. CAROTOVORA== | ||
<StructureSection load='1bhe' size='340' side='right' caption='[[1bhe]], [[Resolution|resolution]] 1.90Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1bhe]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pectobacterium_carotovorum_subsp._carotovorum Pectobacterium carotovorum subsp. carotovorum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1BHE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1BHE FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Polygalacturonase Polygalacturonase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.15 3.2.1.15] </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=1bhe FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bhe OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1bhe RCSB], [http://www.ebi.ac.uk/pdbsum/1bhe 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/bh/1bhe_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 == | |||
The crystal structure of the 40-kDa endo-polygalacturonase from Erwinia carotovora ssp. carotovora was solved by multiple isomorphous replacement and refined at 1.9 A to a conventional crystallographic R-factor of 0.198 and Rfree of 0.239. This is the first structure of a polygalacturonase and comprises a 10 turn right-handed parallel beta-helix domain with two loop regions forming a "tunnel like" substrate-binding cleft. Sequence conservation indicates that the active site of polygalacturonase is between these two loop regions, and comparison of the structure of polygalacturonase with that of rhamnogalacturonase A from Aspergillus aculeatus enables two conserved aspartates, presumed to be catalytic residues, to be identified. An adjacent histidine, in accord with biochemical results, is also seen. A similarity in overall electrostatic properties of the substrate-binding clefts of polygalacturonase and pectate lyase, which bind and cleave the same substrate, polygalacturonic acid, is also revealed. | |||
Crystal structure of polygalacturonase from Erwinia carotovora ssp. carotovora.,Pickersgill R, Smith D, Worboys K, Jenkins J J Biol Chem. 1998 Sep 18;273(38):24660-4. PMID:9733763<ref>PMID:9733763</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
< | |||
[[Category: Pectobacterium carotovorum subsp. carotovorum]] | [[Category: Pectobacterium carotovorum subsp. carotovorum]] | ||
[[Category: Polygalacturonase]] | [[Category: Polygalacturonase]] | ||
