2j71: Difference between revisions

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[[Image:2j71.png|left|200px]]
==ALPHA-GLUCAN RECOGNITION BY A FAMILY 41 CARBOHYDRATE-BINDING MODULE FROM THERMOTOGA MARITIMA PULLULANASE PULA==
<StructureSection load='2j71' size='340' side='right' caption='[[2j71]], [[Resolution|resolution]] 1.69&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2j71]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J71 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2J71 FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2j72|2j72]], [[2j73|2j73]]</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Pullulanase Pullulanase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.41 3.2.1.41] </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=2j71 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j71 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2j71 RCSB], [http://www.ebi.ac.uk/pdbsum/2j71 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/j7/2j71_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 ==
Starch recognition by carbohydrate-binding modules (CBMs) is important for the activity of starch-degrading enzymes. The N-terminal family 41 CBM, TmCBM41 (from pullulanase PulA secreted by Thermotoga maritima) was shown to have alpha-glucan binding activity with specificity for alpha-1,4-glucans but was able to tolerate the alpha-1,6-linkages found roughly every three or four glucose units in pullulan. Using X-ray crystallography, the structures were solved for TmCBM41 in an uncomplexed form and in complex with maltotetraose and 6(3)-alpha-D-glucosyl-maltotriose (GM3). Ligand binding was facilitated by stacking interactions between the alpha-faces of the glucose residues and two tryptophan side-chains in the two main subsites of the carbohydrate-binding site. Overall, this mode of starch binding is quite well conserved by other starch-binding modules. The structure in complex with GM3 revealed a third binding subsite with the flexibility to accommodate an alpha-1,4- or an alpha-1,6-linked glucose.


{{STRUCTURE_2j71|  PDB=2j71  |  SCENE=  }}
The structural basis of alpha-glucan recognition by a family 41 carbohydrate-binding module from Thermotoga maritima.,van Bueren AL, Boraston AB J Mol Biol. 2007 Jan 19;365(3):555-60. Epub 2006 Oct 11. PMID:17095014<ref>PMID:17095014</ref>


===ALPHA-GLUCAN RECOGNITION BY A FAMILY 41 CARBOHYDRATE-BINDING MODULE FROM THERMOTOGA MARITIMA PULLULANASE PULA===
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
{{ABSTRACT_PUBMED_17095014}}
== References ==
 
<references/>
==About this Structure==
__TOC__
[[2j71]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermotoga_maritima Thermotoga maritima]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J71 OCA].
</StructureSection>
 
==Reference==
<ref group="xtra">PMID:017095014</ref><references group="xtra"/>
[[Category: Pullulanase]]
[[Category: Pullulanase]]
[[Category: Thermotoga maritima]]
[[Category: Thermotoga maritima]]