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7kio
From Proteopedia
(Difference between revisions)
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==Crystal structure of inositol polyphosphate 1-phosphatase (INPP1) D54A mutant== | ==Crystal structure of inositol polyphosphate 1-phosphatase (INPP1) D54A mutant== | ||
| - | <StructureSection load='7kio' size='340' side='right'caption='[[7kio]]' scene=''> | + | <StructureSection load='7kio' size='340' side='right'caption='[[7kio]], [[Resolution|resolution]] 2.40Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7KIO OCA]. For a <b>guided tour on the structure components</b> use [ | + | <table><tr><td colspan='2'>[[7kio]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bovin Bovin]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7KIO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7KIO FirstGlance]. <br> |
| - | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> |
| + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">INPP1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN])</td></tr> | ||
| + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Inositol-1,4-bisphosphate_1-phosphatase Inositol-1,4-bisphosphate 1-phosphatase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.57 3.1.3.57] </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=7kio FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7kio OCA], [https://pdbe.org/7kio PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7kio RCSB], [https://www.ebi.ac.uk/pdbsum/7kio PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7kio ProSAT]</span></td></tr> | ||
</table> | </table> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | Inositol polyphosphate 1-phosphatase (INPP1) is a prototype member of metal-dependent/lithium-inhibited phosphomonoesterase protein family defined by a conserved three-dimensional core structure. Enzymes within this family function in distinct pathways including: inositide signaling, gluconeogenesis, and sulfur assimilation. Using structural and biochemical studies, we report the effect of substrate and lithium on a network of metal binding sites within the catalytic center of INPP1. We find that lithium preferentially occupies a key site involved in metal-activation only when substrate or product is added. Mutation of a conserved residue that selectively coordinates the putative lithium-binding site results in a dramatic 100-fold reduction in the inhibitory constant as compared to wild-type. Furthermore, we report the INPP1/inositol 1,4-bisphosphate complex which illuminates key features of the enzyme active site. Our results provide insights into a structural basis for uncompetitive lithium inhibition, substrate recognition and define a sequence motif for metal binding within this family of regulatory phosphatases. | ||
| + | |||
| + | A Structural Basis for Lithium and Substrate Binding of an Inositide Phosphatase.,Dollins DE, Xiong JP, Endo-Streeter S, Anderson DE, Bansal VS, Ponder JW, Ren Y, York JD J Biol Chem. 2020 Nov 10. pii: RA120.014057. doi: 10.1074/jbc.RA120.014057. PMID:33172890<ref>PMID:33172890</ref> | ||
| + | |||
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| + | </div> | ||
| + | <div class="pdbe-citations 7kio" style="background-color:#fffaf0;"></div> | ||
| + | == References == | ||
| + | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Bovin]] | ||
| + | [[Category: Inositol-1,4-bisphosphate 1-phosphatase]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: Dollins | + | [[Category: Dollins, D E]] |
| - | [[Category: Ren Y]] | + | [[Category: Ren, Y]] |
| - | [[Category: Xiong J | + | [[Category: Xiong, J P]] |
| - | [[Category: York | + | [[Category: York, J D]] |
| + | [[Category: Hydrolase]] | ||
Revision as of 10:09, 14 July 2021
Crystal structure of inositol polyphosphate 1-phosphatase (INPP1) D54A mutant
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