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| | <StructureSection load='5vjv' size='340' side='right'caption='[[5vjv]], [[Resolution|resolution]] 1.95Å' scene=''> | | <StructureSection load='5vjv' size='340' side='right'caption='[[5vjv]], [[Resolution|resolution]] 1.95Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[5vjv]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Arath Arath]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VJV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VJV FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[5vjv]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VJV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5VJV FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5vjw|5vjw]]</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">T22K18.22, At3g09970 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3702 ARATH])</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=5vjv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vjv OCA], [https://pdbe.org/5vjv PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5vjv RCSB], [https://www.ebi.ac.uk/pdbsum/5vjv PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5vjv ProSAT]</span></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Protein-tyrosine-phosphatase Protein-tyrosine-phosphatase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.48 3.1.3.48] </span></td></tr>
| + | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5vjv FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5vjv OCA], [http://pdbe.org/5vjv PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5vjv RCSB], [http://www.ebi.ac.uk/pdbsum/5vjv PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5vjv ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| - | <div style="background-color:#fffaf0;">
| + | == Function == |
| - | == Publication Abstract from PubMed == | + | [https://www.uniprot.org/uniprot/RLPH2_ARATH RLPH2_ARATH] Protein phosphatase that dephosphorylates specifically tyrosine-phosphorylated peptides; especially active on dual-phosphorylated substrates containing a phosphothreonine-X-phosphotyrosine motif.<ref>PMID:26742850</ref> |
| - | Despite belonging to the phosphoserine- and phosphothreonine-specific phosphoprotein phosphatase (PPP) family, Arabidopsis thaliana Rhizobiales-like phosphatase 2 (RLPH2) strongly prefers substrates bearing phosphorylated tyrosine residues. We solved the structures of RLPH2 crystallized in the presence or absence of sodium tungstate. These structures revealed the presence of a central domain that forms a binding site for two divalent metal ions that closely resembles that of other PPP-family enzymes. Unique structural elements from two flanking domains suggest a mechanism for the selective dephosphorylation of phosphotyrosine residues. Cocrystallization with the phosphate mimetic tungstate also suggests how positively charged residues that are highly conserved in the RLPH2 class form an additional pocket that is specific for a phosphothreonine residue located near the phosphotyrosine residue that is bound to the active site. Site-directed mutagenesis confirmed that this auxiliary recognition element facilitates the recruitment of dual-phosphorylated substrates containing a pTxpY motif.
| + | |
| - | | + | |
| - | Structural basis for the preference of the Arabidopsis thaliana phosphatase RLPH2 for tyrosine-phosphorylated substrates.,Labandera AM, Uhrig RG, Colville K, Moorhead GB, Ng KKS Sci Signal. 2018 Apr 3;11(524). pii: 11/524/eaan8804. doi:, 10.1126/scisignal.aan8804. PMID:29615518<ref>PMID:29615518</ref>
| + | |
| - | | + | |
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
| + | |
| - | </div>
| + | |
| - | <div class="pdbe-citations 5vjv" style="background-color:#fffaf0;"></div>
| + | |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Arath]] | |
| - | [[Category: Large Structures]] | |
| - | [[Category: Protein-tyrosine-phosphatase]] | |
| - | [[Category: Labandera, A]] | |
| - | [[Category: Moorhead, G]] | |
| - | [[Category: Ng, K K.S]] | |
| | [[Category: Arabidopsis thaliana]] | | [[Category: Arabidopsis thaliana]] |
| - | [[Category: Hydrolase]] | + | [[Category: Large Structures]] |
| - | [[Category: Phosphoprotein phosphatase]] | + | [[Category: Labandera A]] |
| - | [[Category: Protein phosphatase]] | + | [[Category: Moorhead G]] |
| - | [[Category: Protein phosphorylation]] | + | [[Category: Ng KKS]] |
| - | [[Category: Protein tyrosine phosphatase]]
| + | |
