2b4s

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|PDB= 2b4s |SIZE=350|CAPTION= <scene name='initialview01'>2b4s</scene>, resolution 2.30&Aring;
|PDB= 2b4s |SIZE=350|CAPTION= <scene name='initialview01'>2b4s</scene>, resolution 2.30&Aring;
|SITE=
|SITE=
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|LIGAND= <scene name='pdbligand=SO4:SULFATE ION'>SO4</scene>
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|LIGAND= <scene name='pdbligand=PTR:O-PHOSPHOTYROSINE'>PTR</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>
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|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]
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|ACTIVITY= <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>
|GENE= PTPN1, PTP1B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), INSR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
|GENE= PTPN1, PTP1B ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), INSR ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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|DOMAIN=
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|RELATEDENTRY=
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2b4s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2b4s OCA], [http://www.ebi.ac.uk/pdbsum/2b4s PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2b4s RCSB]</span>
}}
}}
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==Disease==
==Disease==
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Known diseases associated with this structure: Abdominal body fat distribution, modifier of OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176885 176885]], Diabetes mellitus, insulin-resistant, with acanthosis nigricans OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]], Hyperinsulinemic hypoglycemia, familial, 5 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]], Insulin resistance, susceptibility to OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176885 176885]], Leprechaunism OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]], Rabson-Mendenhall syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]]
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Known disease associated with this structure: Diabetes mellitus, insulin-resistant, with acanthosis nigricans OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]], Hyperinsulinemic hypoglycemia, familial, 5 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]], Leprechaunism OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]], Rabson-Mendenhall syndrome OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=147670 147670]]
==About this Structure==
==About this Structure==
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[[Category: Hubbard, S R.]]
[[Category: Hubbard, S R.]]
[[Category: Li, S.]]
[[Category: Li, S.]]
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[[Category: SO4]]
 
[[Category: hydrolase/transferase]]
[[Category: hydrolase/transferase]]
[[Category: phosphorylation]]
[[Category: phosphorylation]]
[[Category: tyrosine protein kinase]]
[[Category: tyrosine protein kinase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:57:34 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 02:01:27 2008''

Revision as of 23:01, 30 March 2008


PDB ID 2b4s

Drag the structure with the mouse to rotate
, resolution 2.30Å
Ligands: ,
Gene: PTPN1, PTP1B (Homo sapiens), INSR (Homo sapiens)
Activity: Protein-tyrosine-phosphatase, with EC number 3.1.3.48
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



Crystal structure of a complex between PTP1B and the insulin receptor tyrosine kinase


Contents

Overview

Protein tyrosine phosphatase 1B (PTP1B) is a highly specific negative regulator of insulin receptor signaling in vivo. The determinants of PTP1B specificity for the insulin receptor versus other receptor tyrosine kinases are largely unknown. Here, we report a crystal structure at 2.3 A resolution of the catalytic domain of PTP1B (trapping mutant) in complex with the phosphorylated tyrosine kinase domain of the insulin receptor (IRK). The crystallographic asymmetric unit contains two PTP1B-IRK complexes that interact through an IRK dimer interface. Rather than binding to a phosphotyrosine in the IRK activation loop, PTP1B binds instead to the opposite side of the kinase domain, with the phosphorylated activation loops sequestered within the IRK dimer. The crystal structure provides evidence for a noncatalytic mode of interaction between PTP1B and IRK, which could be important for the selective recruitment of PTP1B to the insulin receptor.

Disease

Known disease associated with this structure: Diabetes mellitus, insulin-resistant, with acanthosis nigricans OMIM:[147670], Hyperinsulinemic hypoglycemia, familial, 5 OMIM:[147670], Leprechaunism OMIM:[147670], Rabson-Mendenhall syndrome OMIM:[147670]

About this Structure

2B4S is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of a complex between protein tyrosine phosphatase 1B and the insulin receptor tyrosine kinase., Li S, Depetris RS, Barford D, Chernoff J, Hubbard SR, Structure. 2005 Nov;13(11):1643-51. PMID:16271887

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