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==Crystal structure of c-Met in complex with (R)-5-(8-fluoro-3-(1-fluoro-1-(3-methoxyquinolin-6-yl)ethyl)-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-methylisoxazole==
==Crystal structure of c-Met in complex with (R)-5-(8-fluoro-3-(1-fluoro-1-(3-methoxyquinolin-6-yl)ethyl)-[1,2,4]triazolo[4,3-a]pyridin-6-yl)-3-methylisoxazole==
<StructureSection load='4xmo' size='340' side='right' caption='[[4xmo]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
<StructureSection load='4xmo' size='340' side='right'caption='[[4xmo]], [[Resolution|resolution]] 1.75&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4xmo]] 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=4XMO OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XMO FirstGlance]. <br>
<table><tr><td colspan='2'>[[4xmo]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XMO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4XMO FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=46G:6-{(1R)-1-FLUORO-1-[8-FLUORO-6-(3-METHYL-1,2-OXAZOL-5-YL)[1,2,4]TRIAZOLO[4,3-A]PYRIDIN-3-YL]ETHYL}-3-METHOXYQUINOLINE'>46G</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.75&#8491;</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='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=46G:6-{(1R)-1-FLUORO-1-[8-FLUORO-6-(3-METHYL-1,2-OXAZOL-5-YL)[1,2,4]TRIAZOLO[4,3-A]PYRIDIN-3-YL]ETHYL}-3-METHOXYQUINOLINE'>46G</scene></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'>[https://proteopedia.org/fgij/fg.htm?mol=4xmo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xmo OCA], [https://pdbe.org/4xmo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4xmo RCSB], [https://www.ebi.ac.uk/pdbsum/4xmo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4xmo ProSAT]</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=4xmo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xmo OCA], [http://pdbe.org/4xmo PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xmo RCSB], [http://www.ebi.ac.uk/pdbsum/4xmo PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4xmo ProSAT]</span></td></tr>
</table>
</table>
== Disease ==
== 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>
[https://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:[https://omim.org/entry/114550 114550].<ref>PMID:9927037</ref>  Defects in MET are a cause of renal cell carcinoma papillary (RCCP) [MIM:[https://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 ==
== 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>
[https://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 overexpression of c-Met and/or hepatocyte growth factor (HGF), the amplification of the MET gene, and mutations in the c-Met kinase domain can activate signaling pathways that contribute to cancer progression by enabling tumor cell proliferation, survival, invasion, and metastasis. Herein, we report the discovery of 8-fluorotriazolopyridines as inhibitors of c-Met activity. Optimization of the 8-fluorotriazolopyridine scaffold through the combination of structure-based drug design, SAR studies, and metabolite identification provided potent (cellular IC50 &lt; 10 nM), selective inhibitors of c-Met with desirable pharmacokinetic properties that demonstrate potent inhibition of HGF-mediated c-Met phosphorylation in a mouse liver pharmacodynamic model.


Discovery of Potent and Selective 8-Fluorotriazolopyridine c-Met Inhibitors.,Peterson EA, Teffera Y, Albrecht BK, Bauer D, Bellon SF, Boezio A, Boezio C, Broome MA, Choquette D, Copeland KW, Dussault I, Lewis R, Lin MH, Lohman J, Liu J, Potashman M, Rex K, Shimanovich R, Whittington DA, Vaida KR, Harmange JC J Med Chem. 2015 Mar 3. PMID:25699405<ref>PMID:25699405</ref>
==See Also==
 
*[[Hepatocyte growth factor receptor 3D structures|Hepatocyte growth factor receptor 3D structures]]
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 4xmo" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Receptor protein-tyrosine kinase]]
[[Category: Large Structures]]
[[Category: Long, A M]]
[[Category: Long AM]]
[[Category: Whittington, D A]]
[[Category: Whittington DA]]
[[Category: Intracellular catalytic domain]]
[[Category: Receptor tyrosine kinase]]
[[Category: Transferase-transferase inhibitor complex]]

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