4hys | pdb_00004hys

Crystal structure of JNK1 in complex with JIP1 peptide and 4-(4-Indazol-1-yl-pyrimidin-2-ylamino)-cyclohexan

spinqualitylabelsall models 4hys, resolution 2.42Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4hys is a 2 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.415Å Ligands: 1BJ Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MK08_HUMAN Serine/threonine-protein kinase involved in various processes such as cell proliferation, differentiation, migration, transformation and programmed cell death. Extracellular stimuli such as proinflammatory cytokines or physical stress stimulate the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway. In this cascade, two dual specificity kinases MAP2K4/MKK4 and MAP2K7/MKK7 phosphorylate and activate MAPK8/JNK1. In turn, MAPK8/JNK1 phosphorylates a number of transcription factors, primarily components of AP-1 such as JUN, JDP2 and ATF2 and thus regulates AP-1 transcriptional activity. Phosphorylates the replication licensing factor CDT1, inhibiting the interaction between CDT1 and the histone H4 acetylase HBO1 to replication origins. Loss of this interaction abrogates the acetylation required for replication initiation. Promotes stressed cell apoptosis by phosphorylating key regulatory factors including p53/TP53 and Yes-associates protein YAP1. In T-cells, MAPK8 and MAPK9 are required for polarized differentiation of T-helper cells into Th1 cells. Contributes to the survival of erythroid cells by phosphorylating the antagonist of cell death BAD upon EPO stimulation. Mediates starvation-induced BCL2 phosphorylation, BCL2 dissociation from BECN1, and thus activation of autophagy. Phosphorylates STMN2 and hence regulates microtubule dynamics, controlling neurite elongation in cortical neurons. In the developing brain, through its cytoplasmic activity on STMN2, negatively regulates the rate of exit from multipolar stage and of radial migration from the ventricular zone. Phosphorylates several other substrates including heat shock factor protein 4 (HSF4), the deacetylase SIRT1, ELK1, or the E3 ligase ITCH. JNK1 isoforms display different binding patterns: beta-1 preferentially binds to c-Jun, whereas alpha-1, alpha-2, and beta-2 have a similar low level of binding to both c-Jun or ATF2. However, there is no correlation between binding and phosphorylation, which is achieved at about the same efficiency by all isoforms. Publication Abstract from PubMed A series of amino-pyrimidines was developed based upon an initial kinase cross-screening hit from a CDK2 program. Kinase profiling and structure-based drug design guided the optimization from the initial 1,2,3-benzotriazole hit to a potent and selective JNK inhibitor, compound 24f (JNK1 and 2 IC(50)=16 and 66 nM, respectively), with bioavailability in rats and suitable for further in vivo pharmacological evaluation. Development of amino-pyrimidine inhibitors of c-Jun N-terminal kinase (JNK): kinase profiling guided optimization of a 1,2,3-benzotriazole lead.,Palmer WS, Alam M, Arzeno HB, Chang KC, Dunn JP, Goldstein DM, Gong L, Goyal B, Hermann JC, Hogg JH, Hsieh G, Jahangir A, Janson C, Jin S, Ursula Kammlott R, Kuglstatter A, Lukacs C, Michoud C, Niu L, Reuter DC, Shao A, Silva T, Trejo-Martin TA, Stein K, Tan YC, Tivitmahaisoon P, Tran P, Wagner P, Weller P, Wu SY Bioorg Med Chem Lett. 2013 Mar 1;23(5):1486-92. doi: 10.1016/j.bmcl.2012.12.047. , Epub 2012 Dec 22. PMID:23352510 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Mitogen-activated protein kinase 3D structures

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