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4h3b

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Revision as of 17:07, 22 March 2017

Crystal Structure of JNK3 in Complex with SAB Peptide

Structural highlights

4h3b is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	4h36, 4h39
Gene:	MAPK10, JNK3, JNK3A, PRKM10, SAPK1B (HUMAN)
Activity:	Mitogen-activated protein kinase, with EC number 2.7.11.24
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[MK10_HUMAN] Defects in MAPK10 are a cause of epileptic encephalopathy Lennox-Gastaut type (EELG) [MIM:606369]. Epileptic encephalopathies of the Lennox-Gastaut group are childhood epileptic disorders characterized by severe psychomotor delay and seizures. Note=A chromosomal aberration involving MAPK10 has been found in a single patient. Translocation t(Y;4)(q11.2;q21) which causes MAPK10 truncation.

Function

[MK10_HUMAN] Serine/threonine-protein kinase involved in various processes such as neuronal proliferation, differentiation, migration 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 MAPK10/JNK3. In turn, MAPK10/JNK3 phosphorylates a number of transcription factors, primarily components of AP-1 such as JUN and ATF2 and thus regulates AP-1 transcriptional activity. Plays regulatory roles in the signaling pathways during neuronal apoptosis. Phosphorylates the neuronal microtubule regulator STMN2. Acts in the regulation of the beta-amyloid precursor protein/APP signaling during neuronal differentiation by phosphorylating APP. Participates also in neurite growth in spiral ganglion neurons.^[1] [3BP5_HUMAN] Inhibits the auto- and transphosphorylation activity of BTK. Plays a negative regulatory role in BTK-related cytoplasmic signaling in B-cells. May be involved in BCR-induced apoptotic cell death.^[2] ^[3]

Publication Abstract from PubMed

c-Jun N-terminal (JNK) family kinases have a common peptide-docking site used by upstream activating kinases, substrates, scaffold proteins, and phosphatases, where the ensemble of bound proteins determines signaling output. Although there are many JNK structures, little is known about mechanisms of allosteric regulation between the catalytic and peptide-binding sites, and the activation loop, whose phosphorylation is required for catalytic activity. Here, we compare three structures of unliganded JNK3 bound to different peptides. These were compared as a class to structures that differ in binding of peptide, small molecule ligand, or conformation of the kinase activation loop. Peptide binding induced an inhibitory interlobe conformer that was reversed by alterations in the activation loop. Structure class analysis revealed the subtle structural mechanisms for allosteric signaling between the peptide-binding site and activation loop. Biochemical data from isothermal calorimetry, fluorescence energy transfer, and enzyme inhibition demonstrated affinity differences among the three peptides that were consistent with structural observations.

Structural Mechanisms of Allostery and Autoinhibition in JNK Family Kinases.,Laughlin JD, Nwachukwu JC, Figuera-Losada M, Cherry L, Nettles KW, Lograsso PV Structure. 2012 Nov 6. pii: S0969-2126(12)00374-7. doi:, 10.1016/j.str.2012.09.021. PMID:23142346^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Neidhart S, Antonsson B, Gillieron C, Vilbois F, Grenningloh G, Arkinstall S. c-Jun N-terminal kinase-3 (JNK3)/stress-activated protein kinase-beta (SAPKbeta) binds and phosphorylates the neuronal microtubule regulator SCG10. FEBS Lett. 2001 Nov 16;508(2):259-64. PMID:11718727
↑ Yamadori T, Baba Y, Matsushita M, Hashimoto S, Kurosaki M, Kurosaki T, Kishimoto T, Tsukada S. Bruton's tyrosine kinase activity is negatively regulated by Sab, the Btk-SH3 domain-binding protein. Proc Natl Acad Sci U S A. 1999 May 25;96(11):6341-6. PMID:10339589
↑ Matsushita M, Yamadori T, Kato S, Takemoto Y, Inazawa J, Baba Y, Hashimoto S, Sekine S, Arai S, Kunikata T, Kurimoto M, Kishimoto T, Tsukada S. Identification and characterization of a novel SH3-domain binding protein, Sab, which preferentially associates with Bruton's tyrosine kinase (BtK). Biochem Biophys Res Commun. 1998 Apr 17;245(2):337-43. PMID:9571151 doi:http://dx.doi.org/10.1006/bbrc.1998.8420
↑ Laughlin JD, Nwachukwu JC, Figuera-Losada M, Cherry L, Nettles KW, Lograsso PV. Structural Mechanisms of Allostery and Autoinhibition in JNK Family Kinases. Structure. 2012 Nov 6. pii: S0969-2126(12)00374-7. doi:, 10.1016/j.str.2012.09.021. PMID:23142346 doi:http://dx.doi.org/10.1016/j.str.2012.09.021

1 Structural highlights
2 Disease
3 Function
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4h3b"

@@ Line 1: / Line 1: @@
 ==Crystal Structure of JNK3 in Complex with SAB Peptide==
 <StructureSection load='4h3b' size='340' side='right' caption='[[4h3b]], [[Resolution|resolution]] 2.08&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MAPK10, JNK3, JNK3A, PRKM10, SAPK1B ([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/Mitogen-activated_protein_kinase Mitogen-activated protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.24 2.7.11.24] </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=4h3b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4h3b OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4h3b RCSB], [http://www.ebi.ac.uk/pdbsum/4h3b PDBsum]</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=4h3b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4h3b OCA], [http://pdbe.org/4h3b PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4h3b RCSB], [http://www.ebi.ac.uk/pdbsum/4h3b PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4h3b ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 20: / Line 21: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4h3b" style="background-color:#fffaf0;"></div>
 ==See Also==

4h3b

From Proteopedia

Revision as of 17:07, 22 March 2017

Crystal Structure of JNK3 in Complex with SAB Peptide

Structural highlights

Disease

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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