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1pkg

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|PDB= 1pkg |SIZE=350|CAPTION= <scene name='initialview01'>1pkg</scene>, resolution 2.90&Aring;
|PDB= 1pkg |SIZE=350|CAPTION= <scene name='initialview01'>1pkg</scene>, resolution 2.90&Aring;
|SITE=
|SITE=
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|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=ADP:ADENOSINE-5'-DIPHOSPHATE'>ADP</scene>
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|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=ADP:ADENOSINE-5&#39;-DIPHOSPHATE'>ADP</scene>
|ACTIVITY=
|ACTIVITY=
|GENE=
|GENE=
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[[Category: transactivation]]
[[Category: transactivation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 13:25:32 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 13:13:18 2008''

Revision as of 11:13, 23 March 2008


PDB ID 1pkg

Drag the structure with the mouse to rotate
, resolution 2.90Å
Ligands: and
Coordinates: save as pdb, mmCIF, xml



Structure of a c-Kit Kinase Product Complex


Contents

Overview

The c-Kit proto-oncogene is a receptor protein-tyrosine kinase associated with several highly malignant human cancers. Upon binding its ligand, stem cell factor (SCF), c-Kit forms an active dimer that autophosphorylates itself and activates a signaling cascade that induces cell growth. Disease-causing human mutations that activate SCF-independent constitutive expression of c-Kit are found in acute myelogenous leukemia, human mast cell disease, and gastrointestinal stromal tumors. We report on the phosphorylation state and crystal structure of a c-Kit product complex. The c-Kit structure is in a fully active form, with ordered kinase activation and phosphate-binding loops. These results provide key insights into the molecular basis for c-Kit kinase transactivation to assist in the design of new competitive inhibitors targeting activated mutant forms of c-Kit that are resistant to current chemotherapy regimes.

Disease

Known diseases associated with this structure: Gastrointestinal stromal tumor, somatic OMIM:[164920], Germ cell tumors OMIM:[164920], Leukemia, acute myeloid OMIM:[164920], Mast cell leukemia OMIM:[164920], Mastocytosis with associated hematologic disorder OMIM:[164920], Piebaldism OMIM:[164920]

About this Structure

1PKG is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structure of a c-kit product complex reveals the basis for kinase transactivation., Mol CD, Lim KB, Sridhar V, Zou H, Chien EY, Sang BC, Nowakowski J, Kassel DB, Cronin CN, McRee DE, J Biol Chem. 2003 Aug 22;278(34):31461-4. Epub 2003 Jun 24. PMID:12824176

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