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| | ==Mannan Binding Module from Man5C== | | ==Mannan Binding Module from Man5C== |
| - | <StructureSection load='2bgo' size='340' side='right'caption='[[2bgo]], [[NMR_Ensembles_of_Models | 5 NMR models]]' scene=''> | + | <StructureSection load='2bgo' size='340' side='right'caption='[[2bgo]]' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2bgo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/"cellvibrio_cellulosa"_nagy_et_al._2002 "cellvibrio cellulosa" nagy et al. 2002]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BGO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BGO FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2bgo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Cellvibrio_japonicus Cellvibrio japonicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BGO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BGO FirstGlance]. <br> |
| - | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2bgp|2bgp]]</div></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</td></tr> |
| | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bgo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bgo OCA], [https://pdbe.org/2bgo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bgo RCSB], [https://www.ebi.ac.uk/pdbsum/2bgo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bgo ProSAT]</span></td></tr> | | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bgo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bgo OCA], [https://pdbe.org/2bgo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bgo RCSB], [https://www.ebi.ac.uk/pdbsum/2bgo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bgo ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q840C0_CELJA Q840C0_CELJA] |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Cellvibrio cellulosa nagy et al. 2002]] | + | [[Category: Cellvibrio japonicus]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Bolam, D N]] | + | [[Category: Bolam DN]] |
| - | [[Category: Gilbert, H J]] | + | [[Category: Gilbert HJ]] |
| - | [[Category: Pell, G]] | + | [[Category: Pell G]] |
| - | [[Category: Tunnicliffe, R B]] | + | [[Category: Tunnicliffe RB]] |
| - | [[Category: Williamson, M P]] | + | [[Category: Williamson MP]] |
| - | [[Category: Carbohydrate binding module]]
| + | |
| - | [[Category: Carbohydrate binding protein]]
| + | |
| - | [[Category: Mannan]]
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| Structural highlights
Function
Q840C0_CELJA
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 PubMed
Enzymes that digest plant cell wall polysaccharides generally contain non-catalytic, carbohydrate-binding modules (CBMs) that function by attaching the enzyme to the substrate, potentiating catalytic activity. Here, we present the first structure of a family 35 CBM, derived from the Cellvibrio japonicus beta-1,4-mannanase Man5C. The NMR structure has been determined for both the free protein and the protein bound to mannopentaose. The data show that the protein displays a typical beta-jelly-roll fold. Ligand binding is not located on the concave surface of the protein, as occurs in many CBMs that display the jelly-roll fold, but is formed by the loops that link the two beta-sheets of the protein, similar to family 6 CBMs. In contrast to the majority of CBMs, which are generally rigid proteins, CBM35 undergoes significant conformational change upon ligand binding. The curvature of the binding site and the narrow binding cleft are likely to be the main determinants of binding specificity. The predicted solvent exposure of O6 at several subsites provides an explanation for the observed accommodation of decorated mannans. Two of the key aromatic residues in Man5C-CBM35 that interact with mannopentaose are conserved in mannanase-derived CBM35s, which will guide specificity predictions based on the primary sequence of proteins in this CBM family.
Structure of a mannan-specific family 35 carbohydrate-binding module: evidence for significant conformational changes upon ligand binding.,Tunnicliffe RB, Bolam DN, Pell G, Gilbert HJ, Williamson MP J Mol Biol. 2005 Mar 25;347(2):287-96. PMID:15740741[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Tunnicliffe RB, Bolam DN, Pell G, Gilbert HJ, Williamson MP. Structure of a mannan-specific family 35 carbohydrate-binding module: evidence for significant conformational changes upon ligand binding. J Mol Biol. 2005 Mar 25;347(2):287-96. PMID:15740741 doi:10.1016/j.jmb.2005.01.038
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