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| | ==X-ray structure of a putative phosphoprotein phosphatase from Arabidopsis thaliana gene AT1G05000== | | ==X-ray structure of a putative phosphoprotein phosphatase from Arabidopsis thaliana gene AT1G05000== |
| - | <StructureSection load='1xri' size='340' side='right' caption='[[1xri]], [[Resolution|resolution]] 3.30Å' scene=''> | + | <StructureSection load='1xri' size='340' side='right'caption='[[1xri]], [[Resolution|resolution]] 3.30Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[1xri]] is a 2 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=1XRI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1XRI FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1xri]] is a 2 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=1XRI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XRI FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 3.3Å</td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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">At1g05000 ([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=1xri FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xri OCA], [https://pdbe.org/1xri PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xri RCSB], [https://www.ebi.ac.uk/pdbsum/1xri PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xri ProSAT], [https://www.topsan.org/Proteins/CESG/1xri TOPSAN]</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=1xri FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xri OCA], [http://pdbe.org/1xri PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1xri RCSB], [http://www.ebi.ac.uk/pdbsum/1xri PDBsum], [http://www.topsan.org/Proteins/CESG/1xri TOPSAN]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/DSP1_ARATH DSP1_ARATH] Possesses phosphotyrosine phosphatase activity in vitro. Hydrolyzes para-nitrophenyl phosphate in vitro (PubMed:21409566, PubMed:18433060). Hydrolyzes O-methylfluorescein phosphate in vitro (PubMed:21409566). Hydrolyzes polyphosphate and ATP in vitro (PubMed:18433060). Dephosphorylates the phosphoinositides PI(3,4,5)P3, PI(3,5)P2, but not PI(3)P, PI(3,4)P2 or PI(4,5)P2 (PubMed:17976645).<ref>PMID:17976645</ref> <ref>PMID:18433060</ref> <ref>PMID:21409566</ref> |
| | == 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/xr/1xri_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xr/1xri_consurf.spt"</scriptWhenChecked> |
| - | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | + | <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> |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Arath]] | + | [[Category: Arabidopsis thaliana]] |
| - | [[Category: Allard, S T.M]] | + | [[Category: Large Structures]] |
| - | [[Category: Bingman, C A]] | + | [[Category: Allard STM]] |
| - | [[Category: Bitto, E]] | + | [[Category: Bingman CA]] |
| - | [[Category: Structural genomic]] | + | [[Category: Bitto E]] |
| - | [[Category: Phillips, G N]] | + | [[Category: Phillips Jr GN]] |
| - | [[Category: Smith, D W]] | + | [[Category: Smith DW]] |
| - | [[Category: Wesenberg, G E]] | + | [[Category: Wesenberg GE]] |
| - | [[Category: At1g05000]]
| + | |
| - | [[Category: Cesg]]
| + | |
| - | [[Category: Phosphoprotein phosphatase]]
| + | |
| - | [[Category: PSI, Protein structure initiative]]
| + | |
| - | [[Category: Unknown function]]
| + | |
| Structural highlights
Function
DSP1_ARATH Possesses phosphotyrosine phosphatase activity in vitro. Hydrolyzes para-nitrophenyl phosphate in vitro (PubMed:21409566, PubMed:18433060). Hydrolyzes O-methylfluorescein phosphate in vitro (PubMed:21409566). Hydrolyzes polyphosphate and ATP in vitro (PubMed:18433060). Dephosphorylates the phosphoinositides PI(3,4,5)P3, PI(3,5)P2, but not PI(3)P, PI(3,4)P2 or PI(4,5)P2 (PubMed:17976645).[1] [2] [3]
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 PubMed
The crystal structure of the protein product of the gene locus At1g05000, a hypothetical protein from A. thaliana, was determined by the multiple-wavelength anomalous diffraction method and was refined to an R factor of 20.4% (R(free) = 24.9%) at 3.3 A. The protein adopts the alpha/beta fold found in cysteine phosphatases, a superfamily of phosphatases that possess a catalytic cysteine and form a covalent thiol-phosphate intermediate during the catalytic cycle. In At1g05000, the analogous cysteine (Cys(150)) is located at the bottom of a positively-charged pocket formed by residues that include the conserved arginine (Arg(156)) of the signature active site motif, HCxxGxxRT. Of 74 model phosphatase substrates tested, purified recombinant At1g05000 showed highest activity toward polyphosphate (poly-P(12-13)) and deoxyribo- and ribonucleoside triphosphates, and less activity toward phosphoenolpyruvate, phosphotyrosine, phosphotyrosine-containing peptides, and phosphatidyl inositols. Divalent metal cations were not required for activity and had little effect on the reaction.
Structural and functional characterization of a novel phosphatase from the Arabidopsis thaliana gene locus At1g05000.,Aceti DJ, Bitto E, Yakunin AF, Proudfoot M, Bingman CA, Frederick RO, Sreenath HK, Vojtik FC, Wrobel RL, Fox BG, Markley JL, Phillips GN Jr Proteins. 2008 Oct;73(1):241-53. PMID:18433060[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Roma-Mateo C, Rios P, Tabernero L, Attwood TK, Pulido R. A novel phosphatase family, structurally related to dual-specificity phosphatases, that displays unique amino acid sequence and substrate specificity. J Mol Biol. 2007 Dec 7;374(4):899-909. doi: 10.1016/j.jmb.2007.10.008. Epub 2007 , Oct 11. PMID:17976645 doi:http://dx.doi.org/10.1016/j.jmb.2007.10.008
- ↑ Aceti DJ, Bitto E, Yakunin AF, Proudfoot M, Bingman CA, Frederick RO, Sreenath HK, Vojtik FC, Wrobel RL, Fox BG, Markley JL, Phillips GN Jr. Structural and functional characterization of a novel phosphatase from the Arabidopsis thaliana gene locus At1g05000. Proteins. 2008 Oct;73(1):241-53. PMID:18433060 doi:10.1002/prot.22041
- ↑ Roma-Mateo C, Sacristan-Reviriego A, Beresford NJ, Caparros-Martin JA, Culianez-Macia FA, Martin H, Molina M, Tabernero L, Pulido R. Phylogenetic and genetic linkage between novel atypical dual-specificity phosphatases from non-metazoan organisms. Mol Genet Genomics. 2011 Apr;285(4):341-54. doi: 10.1007/s00438-011-0611-6. Epub , 2011 Mar 16. PMID:21409566 doi:http://dx.doi.org/10.1007/s00438-011-0611-6
- ↑ Aceti DJ, Bitto E, Yakunin AF, Proudfoot M, Bingman CA, Frederick RO, Sreenath HK, Vojtik FC, Wrobel RL, Fox BG, Markley JL, Phillips GN Jr. Structural and functional characterization of a novel phosphatase from the Arabidopsis thaliana gene locus At1g05000. Proteins. 2008 Oct;73(1):241-53. PMID:18433060 doi:10.1002/prot.22041
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