4hko: Difference between revisions

Latest revision as of 11:42, 1 March 2024

Crystal Structures of Mutant Endo-beta-1,4-xylanase II (E177Q) in the apo form

Structural highlights

4hko is a 1 chain structure with sequence from Trichoderma reesei. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 1.5Å
Ligands:	IOD
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

XYN2_HYPJR Glycoside hydrolase involved in the hydrolysis of xylan, a major plant cell wall hemicellulose made up of 1,4-beta-linked D-xylopyranose residues. Catalyzes the endohydrolysis of the main-chain 1,4-beta-glycosidic bonds connecting the xylose subunits yielding various xylooligosaccharides and xylose (PubMed:1369024, Ref.5). The catalysis proceeds by a double-displacement reaction mechanism with a putative covalent glycosyl-enzyme intermediate, with retention of the anomeric configuration (PubMed:7988708). Produces xylobiose and xylose as the main degradation products (PubMed:19556747).^[1] ^[2] ^[3] ^[4]

References

↑ Torronen A, Mach RL, Messner R, Gonzalez R, Kalkkinen N, Harkki A, Kubicek CP. The two major xylanases from Trichoderma reesei: characterization of both enzymes and genes. Biotechnology (N Y). 1992 Nov;10(11):1461-5. PMID:1369024
↑ Jun H, Bing Y, Keying Z, Xuemei D, Daiwen C. Sequencing and expression of the xylanase gene 2 from Trichoderma reesei Rut C-30 and characterization of the recombinant enzyme and its activity on xylan. J Mol Microbiol Biotechnol. 2009;17(3):101-9. doi: 10.1159/000226590. Epub 2009, Jun 26. PMID:19556747 doi:https://dx.doi.org/10.1159/000226590
↑ Biely P, Kremnicky L, Alfoldi J, Tenkanen M. Stereochemistry of the hydrolysis of glycosidic linkage by endo-beta-1,4-xylanases of Trichoderma reesei. FEBS Lett. 1994 Dec 12;356(1):137-40. PMID:7988708
↑ Torronen A, Mach RL, Messner R, Gonzalez R, Kalkkinen N, Harkki A, Kubicek CP. The two major xylanases from Trichoderma reesei: characterization of both enzymes and genes. Biotechnology (N Y). 1992 Nov;10(11):1461-5. PMID:1369024

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OCA

[1] Torronen A, Mach RL, Messner R, Gonzalez R, Kalkkinen N, Harkki A, Kubicek CP. The two major xylanases from Trichoderma reesei: characterization of both enzymes and genes. Biotechnology (N Y). 1992 Nov;10(11):1461-5. PMID:1369024

[2] Jun H, Bing Y, Keying Z, Xuemei D, Daiwen C. Sequencing and expression of the xylanase gene 2 from Trichoderma reesei Rut C-30 and characterization of the recombinant enzyme and its activity on xylan. J Mol Microbiol Biotechnol. 2009;17(3):101-9. doi: 10.1159/000226590. Epub 2009, Jun 26. PMID:19556747 doi:https://dx.doi.org/10.1159/000226590

[3] Biely P, Kremnicky L, Alfoldi J, Tenkanen M. Stereochemistry of the hydrolysis of glycosidic linkage by endo-beta-1,4-xylanases of Trichoderma reesei. FEBS Lett. 1994 Dec 12;356(1):137-40. PMID:7988708

[4] Torronen A, Mach RL, Messner R, Gonzalez R, Kalkkinen N, Harkki A, Kubicek CP. The two major xylanases from Trichoderma reesei: characterization of both enzymes and genes. Biotechnology (N Y). 1992 Nov;10(11):1461-5. PMID:1369024

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[2]

[3]

[4]

@@ Line 1: / Line 1: @@
-{{STRUCTURE_4hko|  PDB=4hko  |  SCENE=  }}
-===Crystal Structures of Mutant Endo-beta-1,4-xylanase II (E177Q) in the apo form===
-==About this Structure==
+==Crystal Structures of Mutant Endo-beta-1,4-xylanase II (E177Q) in the apo form==
-[[4hko]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HKO OCA].
+<StructureSection load='4hko' size='340' side='right'caption='[[4hko]], [[Resolution|resolution]] 1.50&Aring;' scene=''>
-[[Category: Endo-1,4-beta-xylanase]]
+== Structural highlights ==
-[[Category: Coates, L.]]
+<table><tr><td colspan='2'>[[4hko]] 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=4HKO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4HKO FirstGlance]. <br>
-[[Category: Kovalevsky, A.]]
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.5&#8491;</td></tr>
-[[Category: Langan, P.]]
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene></td></tr>
-[[Category: Wan, Q.]]
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4hko FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hko OCA], [https://pdbe.org/4hko PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4hko RCSB], [https://www.ebi.ac.uk/pdbsum/4hko PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4hko ProSAT]</span></td></tr>
-[[Category: Hydrolase]]
+</table>
-[[Category: Induced fit mechanism]]
+== Function ==
-[[Category: Oxocarbenium ion]]
+[https://www.uniprot.org/uniprot/XYN2_HYPJR XYN2_HYPJR] Glycoside hydrolase involved in the hydrolysis of xylan, a major plant cell wall hemicellulose made up of 1,4-beta-linked D-xylopyranose residues. Catalyzes the endohydrolysis of the main-chain 1,4-beta-glycosidic bonds connecting the xylose subunits yielding various xylooligosaccharides and xylose (PubMed:1369024, Ref.5). The catalysis proceeds by a double-displacement reaction mechanism with a putative covalent glycosyl-enzyme intermediate, with retention of the anomeric configuration (PubMed:7988708). Produces xylobiose and xylose as the main degradation products (PubMed:19556747).<ref>PMID:1369024</ref> <ref>PMID:19556747</ref> <ref>PMID:7988708</ref> <ref>PMID:1369024</ref>
-[[Category: Xylanase ii]]
+== References ==
-[[Category: Xylohexaose]]
+<references/>
-[[Category: Xylotriose]]
+__TOC__
+</StructureSection>
+[[Category: Large Structures]]
+[[Category: Trichoderma reesei]]
+[[Category: Coates L]]
+[[Category: Kovalevsky A]]
+[[Category: Langan P]]
+[[Category: Wan Q]]

4hko: Difference between revisions

Latest revision as of 11:42, 1 March 2024

Crystal Structures of Mutant Endo-beta-1,4-xylanase II (E177Q) in the apo form

Structural highlights

Function

References

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