2ccr: Difference between revisions

No edit summary
No edit summary
 
(11 intermediate revisions by the same user not shown)
Line 1: Line 1:
{{Seed}}
[[Image:2ccr.png|left|200px]]


<!--
==Structure of Beta-1,4-Galactanase==
The line below this paragraph, containing "STRUCTURE_2ccr", creates the "Structure Box" on the page.
<StructureSection load='2ccr' size='340' side='right'caption='[[2ccr]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2ccr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_licheniformis Bacillus licheniformis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CCR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CCR FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.3&#8491;</td></tr>
-->
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene>, <scene name='pdbligand=PRD_900113:4beta-beta-galactobiose'>PRD_900113</scene>, <scene name='pdbligand=PRD_900114:4beta-beta-galactotriose'>PRD_900114</scene></td></tr>
{{STRUCTURE_2ccr|  PDB=2ccr  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2ccr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ccr OCA], [https://pdbe.org/2ccr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ccr RCSB], [https://www.ebi.ac.uk/pdbsum/2ccr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ccr ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/GANB_BACLD GANB_BACLD] Involved in galactan degradation (PubMed:15312766). Degrades arabinose-free galactan to galactooligosaccharides, producing galactotetraose as the main product along with galactotriose, galactobiose, and galactose (PubMed:15312766). May hydrolyze the beta-1,4-galactan linkages of the galactan portion of arabinogalactan type I, a pectic plant polysaccharide from which most of the arabinose has been removed (By similarity).[UniProtKB:O07013]<ref>PMID:15312766</ref>
== 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/cc/2ccr_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/main_output.php?pdb_ID=2ccr ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Microbial beta-1,4-galactanases are glycoside hydrolases belonging to family 53, which degrade galactan and arabinogalactan side chains in the hairy regions of pectin, a major plant cell wall component. They belong to the larger clan GH-A of glycoside hydrolases, which cover many different poly- and oligosaccharidase specificities. Crystallographic complexes of Bacillus licheniformis beta-1,4-galactanase and its inactive nucleophile mutant have been obtained with methyl-beta(1--&gt;4)-galactotetraoside, providing, for the first time, information on substrate binding to the aglycone side of the beta-1,4-galactanase substrate binding groove. Using the experimentally determined subsites as a starting point, a beta(1--&gt;4)-galactononaose was built into the structure and subjected to molecular dynamics simulations giving further insight into the residues involved in the binding of the polysaccharide from subsite -4 to +5. In particular, this analysis newly identified a conserved beta-turn, which contributes to subsites -2 to +3. This beta-turn is unique to family 53 beta-1,4-galactanases among all clan GH-A families that have been structurally characterized and thus might be a structural signature for endo-beta-1,4-galactanase specificity.


===STRUCTURE OF BETA-1,4-GALACTANASE===
Investigating the binding of beta-1,4-galactan to Bacillus licheniformis beta-1,4-galactanase by crystallography and computational modeling.,Le Nours J, De Maria L, Welner D, Jorgensen CT, Christensen LL, Borchert TV, Larsen S, Lo Leggio L Proteins. 2009 Jun;75(4):977-89. PMID:19089956<ref>PMID:19089956</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2ccr" style="background-color:#fffaf0;"></div>


==About this Structure==
==See Also==
2CCR is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Bacillus_licheniformis Bacillus licheniformis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CCR OCA].
*[[Beta-1%2C4-galactanase|Beta-1%2C4-galactanase]]
[[Category: Arabinogalactan endo-1,4-beta-galactosidase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacillus licheniformis]]
[[Category: Bacillus licheniformis]]
[[Category: Christensen, L L.H.]]
[[Category: Large Structures]]
[[Category: Jorgensen, C T.]]
[[Category: Christensen LLH]]
[[Category: Larsen, S.]]
[[Category: De Maria L]]
[[Category: Leggio, L Lo.]]
[[Category: Jorgensen CT]]
[[Category: Maria, L De.]]
[[Category: Larsen S]]
[[Category: Nours, J Le.]]
[[Category: Le Nours J]]
[[Category: Welner, D.]]
[[Category: Lo Leggio L]]
[[Category: Beta-1,4-galactanase]]
[[Category: Welner D]]
[[Category: Galactan]]
[[Category: Gh-a]]
[[Category: Glycoside hydrolase family 53]]
[[Category: Hydrolase]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 07:58:18 2009''

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA