This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
7xpv
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
| - | '''Unreleased structure''' | ||
| - | + | ==crysteal structure of MtdL-S228A-His soaked with GDP-Fucf and Mn== | |
| + | <StructureSection load='7xpv' size='340' side='right'caption='[[7xpv]], [[Resolution|resolution]] 2.40Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[7xpv]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Marinactinospora_thermotolerans Marinactinospora thermotolerans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7XPV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7XPV FirstGlance]. <br> | ||
| + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GRJ:[[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-6-oxidanyl-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methoxy-oxidanyl-phosphoryl]+[(2~{S},3~{S},4~{S},5~{R})-3,4-bis(oxidanyl)-5-[(1~{S})-1-oxidanylethyl]oxolan-2-yl]+hydrogen+phosphate'>GRJ</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</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=7xpv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7xpv OCA], [https://pdbe.org/7xpv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7xpv RCSB], [https://www.ebi.ac.uk/pdbsum/7xpv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7xpv ProSAT]</span></td></tr> | ||
| + | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Members of glycosyltransferase family 75 (GT75) not only reversibly catalyze the autoglycosylation of a conserved arginine residue with specific NDP-sugars but also exhibit NDP-pyranose mutase activity that reversibly converts specific NDP-pyranose to NDP-furanose. The latter activity provides valuable NDP-furanosyl donors for glycosyltransferases and requires a divalent cation as a cofactor instead of FAD used by UDP-D-galactopyranose mutase. However, details of the mechanism for NDP-pyranose mutase activity are not clear. Here we report the first crystal structures of GT75 family NDP-pyranose mutases. The novel structures of GT75 member MtdL in complex with Mn(2+) and GDP, GDP-D-glucopyranose, GDP-L-fucopyranose, GDP-L-fucofuranose, respectively, combined with site-directed mutagenesis studies, reveal key residues involved in Mn(2+) coordination, substrate binding, and catalytic reactions. We also provide a possible catalytic mechanism for this unique type of NDP-pyranose mutase. Taken together, our results highlight key elements of an enzyme family important for furanose biosynthesis. | ||
| - | + | Structures of the NDP-pyranose mutase belonging to glycosyltransferase family 75 reveal residues important for Mn(2+) coordination and substrate binding.,Du X, Chu X, Liu N, Jia X, Peng H, Xiao Y, Liu L, Yu H, Li F, He C J Biol Chem. 2023 Feb;299(2):102903. doi: 10.1016/j.jbc.2023.102903. Epub 2023 , Jan 13. PMID:36642179<ref>PMID:36642179</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | [[Category: | + | </div> |
| + | <div class="pdbe-citations 7xpv" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
| + | __TOC__ | ||
| + | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
| + | [[Category: Marinactinospora thermotolerans]] | ||
| + | [[Category: He C]] | ||
| + | [[Category: Li FD]] | ||
Revision as of 06:42, 29 March 2023
crysteal structure of MtdL-S228A-His soaked with GDP-Fucf and Mn
| |||||||||||
