3dx3: Difference between revisions
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==Golgi alpha-Mannosidase II in complex with Mannostatin analog (1R,2R,3S,4R,5R)-5-aminocyclopentane-1,2,3,4-tetraol== | ==Golgi alpha-Mannosidase II in complex with Mannostatin analog (1R,2R,3S,4R,5R)-5-aminocyclopentane-1,2,3,4-tetraol== | ||
<StructureSection load='3dx3' size='340' side='right' caption='[[3dx3]], [[Resolution|resolution]] 1.42Å' scene=''> | <StructureSection load='3dx3' size='340' side='right'caption='[[3dx3]], [[Resolution|resolution]] 1.42Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3dx3]] is a 1 chain structure with sequence from [ | <table><tr><td colspan='2'>[[3dx3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3DX3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3DX3 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MRD:(4R)-2-METHYLPENTANE-2,4-DIOL'>MRD</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=YTB:(1R,2R,3S,4R,5R)-5-AMINOCYCLOPENTANE-1,2,3,4-TETROL'>YTB</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.42Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MRD:(4R)-2-METHYLPENTANE-2,4-DIOL'>MRD</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=YTB:(1R,2R,3S,4R,5R)-5-AMINOCYCLOPENTANE-1,2,3,4-TETROL'>YTB</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=3dx3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3dx3 OCA], [https://pdbe.org/3dx3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3dx3 RCSB], [https://www.ebi.ac.uk/pdbsum/3dx3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3dx3 ProSAT]</span></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | |||
</table> | </table> | ||
== Function == | == Function == | ||
[ | [https://www.uniprot.org/uniprot/MAN2_DROME MAN2_DROME] Catalyzes the first committed step in the biosynthesis of complex N-glycans. It controls conversion of high mannose to complex N-glycans; the final hydrolytic step in the N-glycan maturation pathway (By similarity). | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dx/3dx3_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/dx/3dx3_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/ | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
</jmolCheckbox> | </jmolCheckbox> | ||
| Line 32: | Line 31: | ||
==See Also== | ==See Also== | ||
*[[Mannosidase|Mannosidase]] | *[[Mannosidase 3D structures|Mannosidase 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Drosophila melanogaster]] | ||
[[Category: | [[Category: Large Structures]] | ||
[[Category: Kuntz | [[Category: Kuntz DA]] | ||
[[Category: Rose | [[Category: Rose DR]] | ||
Latest revision as of 12:01, 30 October 2024
Golgi alpha-Mannosidase II in complex with Mannostatin analog (1R,2R,3S,4R,5R)-5-aminocyclopentane-1,2,3,4-tetraolGolgi alpha-Mannosidase II in complex with Mannostatin analog (1R,2R,3S,4R,5R)-5-aminocyclopentane-1,2,3,4-tetraol
Structural highlights
FunctionMAN2_DROME Catalyzes the first committed step in the biosynthesis of complex N-glycans. It controls conversion of high mannose to complex N-glycans; the final hydrolytic step in the N-glycan maturation pathway (By similarity). 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 PubMedMannostatin A is a potent inhibitor of the mannose-trimming enzyme, Golgi alpha-mannosidase II (GMII), which acts late in the N-glycan processing pathway. Inhibition of this enzyme provides a route to blocking the transformation-associated changes in cancer cell surface oligosaccharide structures. Here, we report on the synthesis of new Mannostatin derivatives and analyze their binding in the active site of Drosophila GMII by X-ray crystallography. The results indicate that the interaction with the backbone carbonyl of Arg876 is crucial to the high potency of the inhibitor-an effect enhanced by the hydrophobic interaction between the thiomethyl group and an aromatic pocket vicinal to the cleavage site. The various structures indicate that differences in the hydration of protein-ligand complexes are also important determinants of plasticity as well as selectivity of inhibitor binding. The molecular basis of inhibition of Golgi alpha-mannosidase II by mannostatin A.,Kuntz DA, Zhong W, Guo J, Rose DR, Boons GJ Chembiochem. 2009 Jan 26;10(2):268-77. PMID:19101978[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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