View source for 7k7o


==CRYSTAL STRUCTURE OF TYROSINE KINASE 2 JH2 (PSEUDO KINASE DOMAIN) COMPLEXED WITH COMPOUND-12 AKA:6-[(cyclopropanecarbonyl)amino]-4-{[2-methoxy-3-(pyrimidin-2-yl)phenyl]amino}-N-methylpyridazine-3-carboxamide==
<StructureSection load='7k7o' size='340' side='right'caption='[[7k7o]], [[Resolution|resolution]] 2.82&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7k7o]] is a 2 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=7K7O OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7K7O FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.82&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=VZJ:6-[(cyclopropanecarbonyl)amino]-4-{[2-methoxy-3-(pyrimidin-2-yl)phenyl]amino}-N-methylpyridazine-3-carboxamide'>VZJ</scene></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=7k7o FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7k7o OCA], [https://pdbe.org/7k7o PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7k7o RCSB], [https://www.ebi.ac.uk/pdbsum/7k7o PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7k7o ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/TYK2_HUMAN TYK2_HUMAN] Mendelian susceptibility to mycobacterial diseases;Autosomal recessive hyper IgE syndrome. Defects in TYK2 are the cause of protein-tyrosine kinase 2 deficiency (TYK2 deficiency) [MIM:[https://omim.org/entry/611521 611521]; also known as autosomal recessive hyper-IgE syndrome (HIES) with atypical mycobacteriosis. TYK2 deficiency consists of a primary immunodeficiency characterized by recurrent skin abscesses, pneumonia, and highly elevated serum IgE.
== Function ==
[https://www.uniprot.org/uniprot/TYK2_HUMAN TYK2_HUMAN] Probably involved in intracellular signal transduction by being involved in the initiation of type I IFN signaling. Phosphorylates the interferon-alpha/beta receptor alpha chain.<ref>PMID:7526154</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A search for structurally diversified Tyk2 JH2 ligands from 6 (BMS-986165), a pyridazine carboxamide-derived Tyk2 JH2 ligand as a clinical Tyk2 inhibitor currently in late development for the treatment of psoriasis, began with a survey of six-membered heteroaryl groups in place of the N-methyl triazolyl moiety in 6. The X-ray co-crystal structure of an early lead (12) revealed a potential new binding pocket. Exploration of the new pocket resulted in two frontrunners for a clinical candidate. The potential hydrogen bonding interaction with Thr599 in the pocket was achieved with a tertiary amide moiety, confirmed by the X-ray co-crystal structure of 29. When the diversity search was extended to nicotinamides, a single fluorine atom addition was found to significantly enhance the permeability, which directly led to the discovery of 7 (BMS-986202) as a clinical Tyk2 inhibitor that binds to Tyk2 JH2. The preclinical studies of 7, including efficacy studies in mouse models of IL-23-driven acanthosis, anti-CD40-induced colitis, and spontaneous lupus, will also be presented.

Discovery of BMS-986202: A Clinical Tyk2 Inhibitor that Binds to Tyk2 JH2.,Liu C, Lin J, Langevine C, Smith D, Li J, Tokarski JS, Khan J, Ruzanov M, Strnad J, Zupa-Fernandez A, Cheng L, Gillooly KM, Shuster D, Zhang Y, Thankappan A, McIntyre KW, Chaudhry C, Elzinga PA, Chiney M, Chimalakonda A, Lombardo LJ, Macor JE, Carter PH, Burke JR, Weinstein DS J Med Chem. 2021 Jan 14;64(1):677-694. doi: 10.1021/acs.jmedchem.0c01698. Epub, 2020 Dec 28. PMID:33370104<ref>PMID:33370104</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7k7o" style="background-color:#fffaf0;"></div>

==See Also==
*[[Tyrosine kinase 3D structures|Tyrosine kinase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Khan JA]]