3ogr
From Proteopedia
(Difference between revisions)
(8 intermediate revisions not shown.) | |||
Line 1: | Line 1: | ||
- | [[Image:3ogr.jpg|left|200px]] | ||
- | < | + | ==Complex structure of beta-galactosidase from Trichoderma reesei with galactose== |
- | + | <StructureSection load='3ogr' size='340' side='right'caption='[[3ogr]], [[Resolution|resolution]] 1.50Å' scene=''> | |
- | + | == Structural highlights == | |
- | + | <table><tr><td colspan='2'>[[3ogr]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Trichoderma_reesei Trichoderma reesei]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3OGR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3OGR FirstGlance]. <br> | |
- | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5Å</td></tr> | |
- | -- | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=GLC:ALPHA-D-GLUCOSE'>GLC</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=3ogr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ogr OCA], [https://pdbe.org/3ogr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3ogr RCSB], [https://www.ebi.ac.uk/pdbsum/3ogr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3ogr ProSAT]</span></td></tr> | |
+ | </table> | ||
+ | == Function == | ||
+ | [https://www.uniprot.org/uniprot/Q70SY0_HYPJE Q70SY0_HYPJE] | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | We have determined the crystal structure of Trichoderma reesei (Hypocrea jecorina) beta-galactosidase (Tr-beta-gal) at a 1.2A resolution and its complex structures with galactose, IPTG and PETG at 1.5, 1.75 and 1.4A resolutions, respectively. Tr-beta-gal is a potential enzyme for lactose hydrolysis in the dairy industry and belongs to family 35 of the glycoside hydrolases (GH-35). The high resolution crystal structures of this six-domain enzyme revealed interesting features about the structure of Tr-beta-gal. We discovered conformational changes in the two loop regions in the active site, implicating a conformational selection-mechanism for the enzyme. In addition, the Glu200, an acid/base catalyst showed two different conformations which undoubtedly affect the pK(a) value of this residue and the catalytic mechanism. The electron density showed extensive glycosylation, suggesting a structure stabilizing role for glycans. The longest glycan showed an electron density that extends to the eighth monosaccharide unit in the extended chain. The Tr-beta-gal structure also showed a well-ordered structure for a unique octaserine motif on the surface loop of the fifth domain. | ||
- | + | Crystal structures of Trichoderma reesei beta-galactosidase reveal conformational changes in the active site.,Maksimainen M, Hakulinen N, Kallio JM, Timoharju T, Turunen O, Rouvinen J J Struct Biol. 2011 Apr;174(1):156-63. Epub 2010 Dec 3. PMID:21130883<ref>PMID:21130883</ref> | |
+ | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
+ | </div> | ||
+ | <div class="pdbe-citations 3ogr" style="background-color:#fffaf0;"></div> | ||
- | + | ==See Also== | |
- | + | *[[Galactosidase 3D structures|Galactosidase 3D structures]] | |
- | + | == References == | |
- | + | <references/> | |
- | + | __TOC__ | |
- | + | </StructureSection> | |
- | == | + | [[Category: Large Structures]] |
- | [[ | + | [[Category: Trichoderma reesei]] |
- | + | [[Category: Maksimainen M]] | |
- | == | + | [[Category: Rouvinen J]] |
- | < | + | |
- | [[Category: | + | |
- | [[Category: | + | |
- | [[Category: Maksimainen | + | |
- | [[Category: Rouvinen | + |
Current revision
Complex structure of beta-galactosidase from Trichoderma reesei with galactose
|