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]] | ||
Revision as of 12:39, 13 August 2014
POLYGALACTURONASE FROM ERWINIA CAROTOVORA SSP. CAROTOVORAPOLYGALACTURONASE FROM ERWINIA CAROTOVORA SSP. CAROTOVORA
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe 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[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References |
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