|
|
| (One intermediate revision not shown.) |
| Line 3: |
Line 3: |
| | <StructureSection load='4xwm' size='340' side='right'caption='[[4xwm]], [[Resolution|resolution]] 1.70Å' scene=''> | | <StructureSection load='4xwm' size='340' side='right'caption='[[4xwm]], [[Resolution|resolution]] 1.70Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4xwm]] is a 1 chain structure. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4kkf 4kkf]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XWM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XWM FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4xwm]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_cellulovorans Clostridium cellulovorans]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4kkf 4kkf]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XWM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XWM FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CBI:CELLOBIOSE'>CBI</scene>, <scene name='pdbligand=CBK:4-O-BETA-D-GLUCOPYRANOSYL-ALPHA-D-GLUCOPYRANOSE'>CBK</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.703Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4xwl|4xwl]], [[4xwn|4xwn]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BGC:BETA-D-GLUCOSE'>BGC</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=PRD_900005:beta-cellobiose'>PRD_900005</scene>, <scene name='pdbligand=PRD_900023:alpha-cellobiose'>PRD_900023</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Cellulose_1,4-beta-cellobiosidase_(non-reducing_end) Cellulose 1,4-beta-cellobiosidase (non-reducing end)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.91 3.2.1.91] </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=4xwm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xwm OCA], [https://pdbe.org/4xwm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xwm RCSB], [https://www.ebi.ac.uk/pdbsum/4xwm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xwm ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4xwm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xwm OCA], [http://pdbe.org/4xwm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xwm RCSB], [http://www.ebi.ac.uk/pdbsum/4xwm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xwm ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/O65986_CLOCL O65986_CLOCL] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 22: |
Line 23: |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| | + | [[Category: Clostridium cellulovorans]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Liaw, Y C]] | + | [[Category: Liaw Y-C]] |
| - | [[Category: Hydrolase]]
| + | |
| Structural highlights
4xwm is a 1 chain structure with sequence from Clostridium cellulovorans. This structure supersedes the now removed PDB entry 4kkf. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
| | Method: | X-ray diffraction, Resolution 1.703Å |
| Ligands: | , , , , , |
| Resources: | FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT |
Function
O65986_CLOCL
Publication Abstract from PubMed
Exoglucanase/cellobiohydrolase (EC 3.2.1.176) hydrolyzes a beta-1,4-glycosidic bond from the reducing end of cellulose and releases cellobiose as the major product. Three complex crystal structures of the glycosyl hydrolase 48 (GH48) cellobiohydrolase S (ExgS) from Clostridium cellulovorans with cellobiose, cellotetraose and triethylene glycol molecules were solved. The product cellobiose occupies subsites +1 and +2 in the open active-site cleft of the enzyme-cellotetraose complex structure, indicating an enzymatic hydrolysis function. Moreover, three triethylene glycol molecules and one pentaethylene glycol molecule are located at active-site subsites -2 to -6 in the structure of the ExgS-triethylene glycol complex shown here. Modelling of glucose into subsite -1 in the active site of the ExgS-cellobiose structure revealed that Glu50 acts as a proton donor and Asp222 plays a nucleophilic role.
Structures of exoglucanase from Clostridium cellulovorans: cellotetraose binding and cleavage.,Tsai LC, Amiraslanov I, Chen HR, Chen YW, Lee HL, Liang PH, Liaw YC Acta Crystallogr F Struct Biol Commun. 2015 Oct 1;71(Pt 10):1264-72. doi:, 10.1107/S2053230X15015915. Epub 2015 Sep 23. PMID:26457517[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Tsai LC, Amiraslanov I, Chen HR, Chen YW, Lee HL, Liang PH, Liaw YC. Structures of exoglucanase from Clostridium cellulovorans: cellotetraose binding and cleavage. Acta Crystallogr F Struct Biol Commun. 2015 Oct 1;71(Pt 10):1264-72. doi:, 10.1107/S2053230X15015915. Epub 2015 Sep 23. PMID:26457517 doi:http://dx.doi.org/10.1107/S2053230X15015915
|
