1phr: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
[[Image:1phr.jpg|left|200px]] | [[Image:1phr.jpg|left|200px]] | ||
'''THE CRYSTAL STRUCTURE OF A LOW MOLECULAR PHOSPHOTYROSINE PROTEIN PHOSPHATASE''' | {{Structure | ||
|PDB= 1phr |SIZE=350|CAPTION= <scene name='initialview01'>1phr</scene>, resolution 2.1Å | |||
|SITE= | |||
|LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene> | |||
|ACTIVITY= [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] | |||
|GENE= | |||
}} | |||
'''THE CRYSTAL STRUCTURE OF A LOW MOLECULAR PHOSPHOTYROSINE PROTEIN PHOSPHATASE''' | |||
==Overview== | ==Overview== | ||
| Line 7: | Line 16: | ||
==About this Structure== | ==About this Structure== | ||
1PHR is a [ | 1PHR is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PHR OCA]. | ||
==Reference== | ==Reference== | ||
The crystal structure of a low-molecular-weight phosphotyrosine protein phosphatase., Su XD, Taddei N, Stefani M, Ramponi G, Nordlund P, Nature. 1994 Aug 18;370(6490):575-8. PMID:[http:// | The crystal structure of a low-molecular-weight phosphotyrosine protein phosphatase., Su XD, Taddei N, Stefani M, Ramponi G, Nordlund P, Nature. 1994 Aug 18;370(6490):575-8. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8052313 8052313] | ||
[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
[[Category: Protein-tyrosine-phosphatase]] | [[Category: Protein-tyrosine-phosphatase]] | ||
| Line 22: | Line 31: | ||
[[Category: phosphotyrosine protein phosphatase]] | [[Category: phosphotyrosine protein phosphatase]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:24:30 2008'' | ||
Revision as of 11:24, 20 March 2008
| |||||||||||||
| 1phr, resolution 2.1Å | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ligands: | SO4 | ||||||||||||
| Activity: | Protein-tyrosine-phosphatase, with EC number 3.1.3.48 | ||||||||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||||||||
THE CRYSTAL STRUCTURE OF A LOW MOLECULAR PHOSPHOTYROSINE PROTEIN PHOSPHATASE
Overview
Protein tyrosine phosphorylation and dephosphorylation are central reactions for control of cellular division, differentiation and development. Here we describe the crystal structure of a low-molecular-weight phosphotyrosine protein phosphatase (PTPase), a cytosolic phosphatase present in many mammalian cells. The enzyme catalyses the dephosphorylation of phosphotyrosine-containing substrates, and overexpression of the protein in normal and transformed cells inhibits cell proliferation. The structure of the low-molecular-weight PTPase reveals an alpha/beta protein containing a phosphate-binding loop motif at the amino end of helix alpha 1. This motif includes the essential active-site residues Cys 12 and Arg 18 and bears striking similarities to the active-site motif recently described in the structure of human PTP1B. The structure of the low-molecular-weight PTPase supports a reaction mechanism involving the conserved Cys 12 as an attacking nucleophile in an in-line associative mechanism. The structure also suggests a catalytic role for Asp 129 in the reaction cycle.
About this Structure
1PHR is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.
Reference
The crystal structure of a low-molecular-weight phosphotyrosine protein phosphatase., Su XD, Taddei N, Stefani M, Ramponi G, Nordlund P, Nature. 1994 Aug 18;370(6490):575-8. PMID:8052313
Page seeded by OCA on Thu Mar 20 13:24:30 2008
