View source for 5hor


==Crystal structure of c-Met-M1250T in complex with SAR125844.==
<StructureSection load='5hor' size='340' side='right'caption='[[5hor]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5hor]] is a 1 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=5HOR OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5HOR FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=63K:1-(6-{[6-(4-FLUOROPHENYL)[1,2,4]TRIAZOLO[4,3-B]PYRIDAZIN-3-YL]SULFANYL}-1,3-BENZOTHIAZOL-2-YL)-3-[2-(MORPHOLIN-4-YL)ETHYL]UREA'>63K</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MET ([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/Receptor_protein-tyrosine_kinase Receptor protein-tyrosine kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.10.1 2.7.10.1] </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=5hor FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5hor OCA], [http://pdbe.org/5hor PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5hor RCSB], [http://www.ebi.ac.uk/pdbsum/5hor PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5hor ProSAT]</span></td></tr>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/MET_HUMAN MET_HUMAN]] Note=Activation of MET after rearrangement with the TPR gene produces an oncogenic protein.  Note=Defects in MET may be associated with gastric cancer.  Defects in MET are a cause of hepatocellular carcinoma (HCC) [MIM:[http://omim.org/entry/114550 114550]].<ref>PMID:9927037</ref>   Defects in MET are a cause of renal cell carcinoma papillary (RCCP) [MIM:[http://omim.org/entry/605074 605074]]. It is a subtype of renal cell carcinoma tending to show a tubulo-papillary architecture formed by numerous, irregular, finger-like projections of connective tissue. Renal cell carcinoma is a heterogeneous group of sporadic or hereditary carcinoma derived from cells of the proximal renal tubular epithelium. It is subclassified into common renal cell carcinoma (clear cell, non-papillary carcinoma), papillary renal cell carcinoma, chromophobe renal cell carcinoma, collecting duct carcinoma with medullary carcinoma of the kidney, and unclassified renal cell carcinoma.<ref>PMID:9140397</ref> <ref>PMID:9563489</ref> <ref>PMID:10433944</ref> <ref>PMID:10417759</ref> <ref>PMID:10327054</ref>   Note=A common allele in the promoter region of the MET shows genetic association with susceptibility to autism in some families. Functional assays indicate a decrease in MET promoter activity and altered binding of specific transcription factor complexes.  Note=MET activating mutations may be involved in the development of a highly malignant, metastatic syndrome known as cancer of unknown primary origin (CUP) or primary occult malignancy. Systemic neoplastic spread is generally a late event in cancer progression. However, in some instances, distant dissemination arises at a very early stage, so that metastases reach clinical relevance before primary lesions. Sometimes, the primary lesions cannot be identified in spite of the progresses in the diagnosis of malignancies.<ref>PMID:20949619</ref>  
== Function ==
[[http://www.uniprot.org/uniprot/MET_HUMAN MET_HUMAN]] Receptor tyrosine kinase that transduces signals from the extracellular matrix into the cytoplasm by binding to hepatocyte growth factor/HGF ligand. Regulates many physiological processes including proliferation, scattering, morphogenesis and survival. Ligand binding at the cell surface induces autophosphorylation of MET on its intracellular domain that provides docking sites for downstream signaling molecules. Following activation by ligand, interacts with the PI3-kinase subunit PIK3R1, PLCG1, SRC, GRB2, STAT3 or the adapter GAB1. Recruitment of these downstream effectors by MET leads to the activation of several signaling cascades including the RAS-ERK, PI3 kinase-AKT, or PLCgamma-PKC. The RAS-ERK activation is associated with the morphogenetic effects while PI3K/AKT coordinates prosurvival effects. During embryonic development, MET signaling plays a role in gastrulation, development and migration of muscles and neuronal precursors, angiogenesis and kidney formation. In adults, participates in wound healing as well as organ regeneration and tissue remodeling. Promotes also differentiation and proliferation of hematopoietic cells.<ref>PMID:1846706</ref> <ref>PMID:8182137</ref> <ref>PMID:15314156</ref>   Acts as a receptor for Listeria internalin inlB, mediating entry of the pathogen into cells.<ref>PMID:1846706</ref> <ref>PMID:8182137</ref> <ref>PMID:15314156</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The HGF/MET pathway is frequently activated in a variety of cancer types. Several selective small molecule inhibitors of the MET kinase are currently in clinical evaluation, in particular for NSCLC, liver, and gastric cancer patients. We report herein the discovery of a series of triazolopyridazines that are selective inhibitors of wild-type (WT) MET kinase and several clinically relevant mutants. We provide insight into their mode of binding and report unprecedented crystal structures of the Y1230H variant. A multiparametric chemical optimization approach allowed the identification of compound 12 (SAR125844) as a development candidate. In this chemical series, absence of CYP3A4 inhibition was obtained at the expense of satisfactory oral absorption. Compound 12, a promising parenteral agent for the treatment of MET-dependent cancers, promoted sustained target engagement at tolerated doses in a human xenograft tumor model. Preclinical pharmacokinetics conducted in several species were predictive for the observed pharmacokinetic behavior of 12 in cancer patients.

Discovery and Pharmacokinetic and Pharmacological Properties of the Potent and Selective MET Kinase Inhibitor 1-{6-[6-(4-Fluorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl]benzothiazo l-2-yl}-3-(2-morpholin-4-ylethyl)urea (SAR125844).,Ugolini A, Kenigsberg M, Rak A, Vallee F, Houtmann J, Lowinski M, Capdevila C, Khider J, Albert E, Martinet N, Nemecek C, Grapinet S, Bacque E, Roesner M, Delaisi C, Calvet L, Bonche F, Semiond D, Egile C, Goulaouic H, Schio L J Med Chem. 2016 Aug 11;59(15):7066-74. doi: 10.1021/acs.jmedchem.6b00280. Epub, 2016 Jul 13. PMID:27355974<ref>PMID:27355974</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5hor" style="background-color:#fffaf0;"></div>

==See Also==
*[[Hepatocyte growth factor receptor 3D structures|Hepatocyte growth factor receptor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Receptor protein-tyrosine kinase]]
[[Category: Houtmann, J]]
[[Category: Marquette, J P]]
[[Category: Vallee, F]]
[[Category: Inhibitor]]
[[Category: Transferase]]