4rh5

From Proteopedia

(Difference between revisions)

Revision as of 17:27, 18 January 2017

Crystal structure of PTPN3 (PTPH1) in complex with Eps15 pTyr849 peptide

Structural highlights

4rh5 is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
NonStd Res:
Related:	2b49, 4qum, 4rh9, 4rhg, 4ri4, 4ri5
Activity:	Protein-tyrosine-phosphatase, with EC number 3.1.3.48
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[EPS15_HUMAN] Note=A chromosomal aberration involving EPS15 is found in acute leukemias. Translocation t(1;11)(p32;q23) with MLL/HRX. The result is a rogue activator protein.

Function

[PTN3_HUMAN] May act at junctions between the membrane and the cytoskeleton. Possesses tyrosine phosphatase activity. [EPS15_HUMAN] Involved in cell growth regulation. May be involved in the regulation of mitogenic signals and control of cell proliferation. Involved in the internalization of ligand-inducible receptors of the receptor tyrosine kinase (RTK) type, in particular EGFR. Plays a role in the assembly of clathrin-coated pits (CCPs). Seems to be involved in CCPs maturation including invagination or budding. Involved in endocytosis of integrin beta-1 (ITGB1) and transferrin receptor (TFR); internalization of ITGB1 as DAB2-dependent cargo but not TFR seems to require association with DAB2.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

Epidermal growth factor receptor (EGFR) pathway substrate 15 (Eps15) is a newly identified substrate for protein tyrosine phosphatase N3 (PTPN3), which belongs to the FERM-containing PTP subfamily comprising five members including PTPN3, N4, N13, N14, and N21. We solved the crystal structures of the PTPN3-Eps15 phosphopeptide complex and found that His812 of PTPN3 and Pro850 of Eps15 are responsible for the specific interaction between them. We defined the critical role of the additional residue Tyr676 of PTPN3, which is replaced by Ile939 in PTPN14, in recognition of tyrosine phosphorylated Eps15. The WPD loop necessary for catalysis is present in all members but not PTPN21. We identified that Glu instead of Asp in the WPE loop contributes to the catalytic incapability of PTPN21 due to an extended distance beyond protonation targeting a phosphotyrosine substrate. Together with in vivo validations, our results provide novel insights into the substrate specificity and plasticity of FERM-containing PTPs.

Substrate Specificity and Plasticity of FERM-Containing Protein Tyrosine Phosphatases.,Chen KE, Li MY, Chou CC, Ho MR, Chen GC, Meng TC, Wang AH Structure. 2015 Feb 18. pii: S0969-2126(15)00041-6. doi:, 10.1016/j.str.2015.01.017. PMID:25728925^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Roxrud I, Raiborg C, Pedersen NM, Stang E, Stenmark H. An endosomally localized isoform of Eps15 interacts with Hrs to mediate degradation of epidermal growth factor receptor. J Cell Biol. 2008 Mar 24;180(6):1205-18. doi: 10.1083/jcb.200708115. PMID:18362181 doi:10.1083/jcb.200708115
↑ Mettlen M, Stoeber M, Loerke D, Antonescu CN, Danuser G, Schmid SL. Endocytic accessory proteins are functionally distinguished by their differential effects on the maturation of clathrin-coated pits. Mol Biol Cell. 2009 Jul;20(14):3251-60. doi: 10.1091/mbc.E09-03-0256. Epub 2009, May 20. PMID:19458185 doi:10.1091/mbc.E09-03-0256
↑ Teckchandani A, Mulkearns EE, Randolph TW, Toida N, Cooper JA. The clathrin adaptor Dab2 recruits EH domain scaffold proteins to regulate integrin beta1 endocytosis. Mol Biol Cell. 2012 Aug;23(15):2905-16. doi: 10.1091/mbc.E11-12-1007. Epub 2012, May 30. PMID:22648170 doi:10.1091/mbc.E11-12-1007
↑ Schmid EM, Ford MG, Burtey A, Praefcke GJ, Peak-Chew SY, Mills IG, Benmerah A, McMahon HT. Role of the AP2 beta-appendage hub in recruiting partners for clathrin-coated vesicle assembly. PLoS Biol. 2006 Sep;4(9):e262. PMID:16903783 doi:http://dx.doi.org/10.1371/journal.pbio.0040262
↑ Chen KE, Li MY, Chou CC, Ho MR, Chen GC, Meng TC, Wang AH. Substrate Specificity and Plasticity of FERM-Containing Protein Tyrosine Phosphatases. Structure. 2015 Feb 18. pii: S0969-2126(15)00041-6. doi:, 10.1016/j.str.2015.01.017. PMID:25728925 doi:http://dx.doi.org/10.1016/j.str.2015.01.017

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4rh5"

@@ Line 1: / Line 1: @@
 ==Crystal structure of PTPN3 (PTPH1) in complex with Eps15 pTyr849 peptide==
 <StructureSection load='4rh5' size='340' side='right' caption='[[4rh5]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2b49|2b49]], [[4qum|4qum]], [[4rh9|4rh9]], [[4rhg|4rhg]], [[4ri4|4ri4]], [[4ri5|4ri5]]</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=4rh5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rh5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4rh5 RCSB], [http://www.ebi.ac.uk/pdbsum/4rh5 PDBsum]</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=4rh5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4rh5 OCA], [http://pdbe.org/4rh5 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4rh5 RCSB], [http://www.ebi.ac.uk/pdbsum/4rh5 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4rh5 ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 21: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4rh5" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Tyrosine phosphatase|Tyrosine phosphatase]]
 == References ==
 <references/>

4rh5

From Proteopedia

Revision as of 17:27, 18 January 2017

Crystal structure of PTPN3 (PTPH1) in complex with Eps15 pTyr849 peptide

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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