View source for 5ct3


==The structure of the NK1 fragment of HGF/SF complexed with 2FA==
<StructureSection load='5ct3' size='340' side='right' caption='[[5ct3]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[5ct3]] is a 2 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=5CT3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5CT3 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=54O:3-HYDROXYPROPANE-1-SULFONIC+ACID'>54O</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HGF, HPTA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=5ct3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ct3 OCA], [http://pdbe.org/5ct3 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5ct3 RCSB], [http://www.ebi.ac.uk/pdbsum/5ct3 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5ct3 ProSAT]</span></td></tr>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/HGF_HUMAN HGF_HUMAN]] Defects in HGF are the cause of deafness autosomal recessive type 39 (DFNB39) [MIM:[http://omim.org/entry/608265 608265]]. A form of profound prelingual sensorineural hearing loss. Sensorineural deafness results from damage to the neural receptors of the inner ear, the nerve pathways to the brain, or the area of the brain that receives sound information.<ref>PMID:19576567</ref>  
== Function ==
[[http://www.uniprot.org/uniprot/HGF_HUMAN HGF_HUMAN]] Potent mitogen for mature parenchymal hepatocyte cells, seems to be a hepatotrophic factor, and acts as a growth factor for a broad spectrum of tissues and cell types. Activating ligand for the receptor tyrosine kinase MET by binding to it and promoting its dimerization.<ref>PMID:15167892</ref> <ref>PMID:20624990</ref>  
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The growth/motility factor hepatocyte growth factor/scatter factor (HGF/SF) and its receptor, the tyrosine kinase MET, constitute a signalling system essential for embryogenesis and for tissue/organ regeneration in post-natal life. HGF/SF-MET signalling, however, also plays a key role in the onset of metastasis of a large number of human tumours. Both HGF/SF and MET are high molecular weight proteins that bury an extensive interface upon complex formation and thus constitute a challenging target for the development of low molecular weight inhibitors. Here we have used surface plasmon resonance (SPR), nuclear magnetic resonance (NMR) and X-ray crystallography to screen a diverse fragment library of 1338 members as well as a range of piperazine-like compounds. Several small molecules were found to bind in the lysine-binding pocket of the kringle 1 domain of HGF/SF and its truncated splice variant NK1. We have defined the binding mode of these compounds, explored their biological activity and we show that selected fragments inhibit MET downstream signalling. Thus we demonstrate that targeting the lysine-binding pocket of NK1 is an effective strategy to generate MET receptor antagonists and we offer proof of concept that the HGF/SF-MET interface may be successfully targeted with small molecules. These studies have broad implications for the development of HGF/SF-MET therapeutics and cancer treatment.

Exploring the chemical space of the lysine-binding pocket of the first kringle domain of hepatocyte growth factor/scatter factor (HGF/SF) yields a new class of inhibitors of HGF/SF-MET binding.,Sigurdardottir AG, Winter A, Sobkowicz A, Fragai M, Chirgadze D, Ascher DB, Blundell TL, Gherardi E Chem Sci. 2015 Nov 1;6(11):6147-6157. doi: 10.1039/c5sc02155c. Epub 2015 Jul 31. PMID:30090230<ref>PMID:30090230</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 5ct3" style="background-color:#fffaf0;"></div>

==See Also==
*[[Hepatocyte growth factor|Hepatocyte growth factor]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Ascher, D B]]
[[Category: Blundell, T L]]
[[Category: Chirgadze, D Y]]
[[Category: Fragai, M]]
[[Category: Gherardi, E]]
[[Category: Sigurdardottir, A G]]
[[Category: Sobkowicz, A]]
[[Category: Winter, A]]
[[Category: Cell cycle]]
[[Category: Fragment based drug discovery]]
[[Category: Growth factor]]
[[Category: Hgf/sf]]
[[Category: Hormone]]
[[Category: New chemical entity]]
[[Category: Nk1 fragment]]