|
|
| Line 1: |
Line 1: |
| | | | |
| | ==SHP-1 catalytic domain WPD loop closed== | | ==SHP-1 catalytic domain WPD loop closed== |
| - | <StructureSection load='4hjq' size='340' side='right' caption='[[4hjq]], [[Resolution|resolution]] 1.80Å' scene=''> | + | <StructureSection load='4hjq' size='340' side='right'caption='[[4hjq]], [[Resolution|resolution]] 1.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4hjq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HJQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4HJQ FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4hjq]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4HJQ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4HJQ 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></td></tr> | + | </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></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4hjp|4hjp]]</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=4hjq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hjq OCA], [https://pdbe.org/4hjq PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4hjq RCSB], [https://www.ebi.ac.uk/pdbsum/4hjq PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4hjq ProSAT]</span></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HCP, PTP1C, PTPN6, SHP-1 (PTPN6) ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=4hjq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4hjq OCA], [http://pdbe.org/4hjq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4hjq RCSB], [http://www.ebi.ac.uk/pdbsum/4hjq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4hjq ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/PTN6_HUMAN PTN6_HUMAN]] Modulates signaling by tyrosine phosphorylated cell surface receptors such as KIT and the EGF receptor/EGFR. The SH2 regions may interact with other cellular components to modulate its own phosphatase activity against interacting substrates. Together with MTUS1, induces UBE2V2 expression upon angiotensin II stimulation. Plays a key role in hematopoiesis.<ref>PMID:11266449</ref> | + | [https://www.uniprot.org/uniprot/PTN6_HUMAN PTN6_HUMAN] Modulates signaling by tyrosine phosphorylated cell surface receptors such as KIT and the EGF receptor/EGFR. The SH2 regions may interact with other cellular components to modulate its own phosphatase activity against interacting substrates. Together with MTUS1, induces UBE2V2 expression upon angiotensin II stimulation. Plays a key role in hematopoiesis.<ref>PMID:11266449</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 21: |
Line 18: |
| | </div> | | </div> |
| | <div class="pdbe-citations 4hjq" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 4hjq" style="background-color:#fffaf0;"></div> |
| | + | |
| | + | ==See Also== |
| | + | *[[Tyrosine phosphatase 3D structures|Tyrosine phosphatase 3D structures]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Protein-tyrosine-phosphatase]] | + | [[Category: Large Structures]] |
| - | [[Category: Alicea-Velazquez, N L]] | + | [[Category: Alicea-Velazquez NL]] |
| - | [[Category: Boggon, T J]] | + | [[Category: Boggon TJ]] |
| - | [[Category: Hydrolase]]
| + | |
| - | [[Category: Phosphatase domain]]
| + | |
| Structural highlights
Function
PTN6_HUMAN Modulates signaling by tyrosine phosphorylated cell surface receptors such as KIT and the EGF receptor/EGFR. The SH2 regions may interact with other cellular components to modulate its own phosphatase activity against interacting substrates. Together with MTUS1, induces UBE2V2 expression upon angiotensin II stimulation. Plays a key role in hematopoiesis.[1]
Publication Abstract from PubMed
Protein tyrosine phosphatase (PTP) catalytic domains undergo a series of conformational changes in order to mediate dephosphorylation of their tyrosine phosphorylated substrates. An important conformational change occurs in the Tryptophan-Proline-Aspartic acid (WPD) loop, which contains the conserved catalytic aspartate. Upon substrate binding, the WPD loop transitions from the 'open' to the 'closed' state, thus allowing optimal positioning of the catalytic aspartate for substrate dephosphorylation. The dynamics of WPD loop conformational changes have previously been studied for PTP1B, HePTP, and the bacterial phosphatase YopH, however, have not yet been comprehensively studied for the non-receptor tyrosine phosphatase SHP-1 (PTPN6). However, there is no characterization of the extent of WPD loop movement between open and fully closed states. To structurally describe the changes in WPD loop conformation, we have determined the 1.4 A crystal structure of the catalytic domain of SHP-1 in the Apo state and the 1.8 A crystal structure of the SHP-1 catalytic domain in complex with a phosphate ion. We provide structural analysis for the WPD loop closed state of SHP phosphatases and the conformational changes that occur upon WPD loop closure.
SHP family protein tyrosine phosphatases adopt canonical active-site conformations in the apo and phosphate-bound states.,Alicea-Velazquez NL, Boggon TJ Protein Pept Lett. 2013 Mar 18. PMID:23514039[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Keilhack H, Muller M, Bohmer SA, Frank C, Weidner KM, Birchmeier W, Ligensa T, Berndt A, Kosmehl H, Gunther B, Muller T, Birchmeier C, Bohmer FD. Negative regulation of Ros receptor tyrosine kinase signaling. An epithelial function of the SH2 domain protein tyrosine phosphatase SHP-1. J Cell Biol. 2001 Jan 22;152(2):325-34. PMID:11266449
- ↑ Alicea-Velazquez NL, Boggon TJ. SHP family protein tyrosine phosphatases adopt canonical active-site conformations in the apo and phosphate-bound states. Protein Pept Lett. 2013 Mar 18. PMID:23514039
|
