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5cqu

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Revision as of 15:30, 3 February 2016

Monoclinic Complex Structure of Protein Kinase CK2 Catalytic Subunit with a Benzotriazole-Based Inhibitor Generated by click-chemistry

Structural highlights

5cqu is a 1 chain structure. This structure supersedes the now removed PDB entry 4bxb. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Activity:	Non-specific serine/threonine protein kinase, with EC number 2.7.11.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[CSK21_HUMAN] Catalytic subunit of a constitutively active serine/threonine-protein kinase complex that phosphorylates a large number of substrates containing acidic residues C-terminal to the phosphorylated serine or threonine. Regulates numerous cellular processes, such as cell cycle progression, apoptosis and transcription, as well as viral infection. May act as a regulatory node which integrates and coordinates numerous signals leading to an appropriate cellular response. During mitosis, functions as a component of the p53/TP53-dependent spindle assembly checkpoint (SAC) that maintains cyclin-B-CDK1 activity and G2 arrest in response to spindle damage. Also required for p53/TP53-mediated apoptosis, phosphorylating 'Ser-392' of p53/TP53 following UV irradiation. Can also negatively regulate apoptosis. Phosphorylates the caspases CASP9 and CASP2 and the apoptotic regulator NOL3. Phosphorylation protects CASP9 from cleavage and activation by CASP8, and inhibits the dimerization of CASP2 and activation of CASP8. Regulates transcription by direct phosphorylation of RNA polymerases I, II, III and IV. Also phosphorylates and regulates numerous transcription factors including NF-kappa-B, STAT1, CREB1, IRF1, IRF2, ATF1, SRF, MAX, JUN, FOS, MYC and MYB. Phosphorylates Hsp90 and its co-chaperones FKBP4 and CDC37, which is essential for chaperone function. Regulates Wnt signaling by phosphorylating CTNNB1 and the transcription factor LEF1. Acts as an ectokinase that phosphorylates several extracellular proteins. During viral infection, phosphorylates various proteins involved in the viral life cycles of EBV, HSV, HBV, HCV, HIV, CMV and HPV.^[1] ^[2] ^[3] ^[4]

Publication Abstract from PubMed

New 4,5,6,7-tetrabromo benzotriazole derivatives have been synthesized, and their activities against CK2 have been tested. A click chemistry approach based on the copper-catalyzed azide-alkyne cycloaddition has been utilized to connect benzotriazoles, which efficiently interact with the ATP-binding site, to other subunits designed to simultaneously bind to the active and the substrate-binding sites of the enzyme. Docking studies allowed us to identify key interactions between CK2 and the designed ligands, which will be useful to optimize this series of multisite-directed inhibitors.

Multisite-directed inhibitors of protein kinase CK2: new challenges.,Swider R, Maslyk M, Martin-Santamaria S, Ramos A, de Pascual-Teresa B Mol Cell Biochem. 2011 Oct;356(1-2):117-9. doi: 10.1007/s11010-011-0962-7. Epub, 2011 Jul 13. PMID:21750979^[5]

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

References

↑ Keller DM, Zeng X, Wang Y, Zhang QH, Kapoor M, Shu H, Goodman R, Lozano G, Zhao Y, Lu H. A DNA damage-induced p53 serine 392 kinase complex contains CK2, hSpt16, and SSRP1. Mol Cell. 2001 Feb;7(2):283-92. PMID:11239457
↑ Sayed M, Pelech S, Wong C, Marotta A, Salh B. Protein kinase CK2 is involved in G2 arrest and apoptosis following spindle damage in epithelial cells. Oncogene. 2001 Oct 25;20(48):6994-7005. PMID:11704824 doi:10.1038/sj.onc.1204894
↑ Shin S, Lee Y, Kim W, Ko H, Choi H, Kim K. Caspase-2 primes cancer cells for TRAIL-mediated apoptosis by processing procaspase-8. EMBO J. 2005 Oct 19;24(20):3532-42. Epub 2005 Sep 29. PMID:16193064 doi:10.1038/sj.emboj.7600827
↑ St-Denis NA, Derksen DR, Litchfield DW. Evidence for regulation of mitotic progression through temporal phosphorylation and dephosphorylation of CK2alpha. Mol Cell Biol. 2009 Apr;29(8):2068-81. doi: 10.1128/MCB.01563-08. Epub 2009 Feb, 2. PMID:19188443 doi:10.1128/MCB.01563-08
↑ Swider R, Maslyk M, Martin-Santamaria S, Ramos A, de Pascual-Teresa B. Multisite-directed inhibitors of protein kinase CK2: new challenges. Mol Cell Biochem. 2011 Oct;356(1-2):117-9. doi: 10.1007/s11010-011-0962-7. Epub, 2011 Jul 13. PMID:21750979 doi:http://dx.doi.org/10.1007/s11010-011-0962-7

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5cqu"

@@ Line 2: / Line 2: @@
 <StructureSection load='5cqu' size='340' side='right' caption='[[5cqu]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5cqu]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5CQU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5CQU FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5cqu]] is a 1 chain structure. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4bxb 4bxb]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5CQU OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5CQU FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=JRJ:4-[4-[2-[4,5,6,7-TETRAKIS(BROMANYL)BENZOTRIAZOL-2-YL]ETHYL]-1,2,3-TRIAZOL-1-YL]BUTAN-1-AMINE'>JRJ</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.1 2.7.11.1] </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=5cqu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5cqu OCA], [http://www.rcsb.org/pdb/explore.do?structureId=5cqu RCSB], [http://www.ebi.ac.uk/pdbsum/5cqu 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=5cqu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5cqu OCA], [http://pdbe.org/5cqu PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5cqu RCSB], [http://www.ebi.ac.uk/pdbsum/5cqu PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 17: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 5cqu" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

5cqu

From Proteopedia

Revision as of 15:30, 3 February 2016

Monoclinic Complex Structure of Protein Kinase CK2 Catalytic Subunit with a Benzotriazole-Based Inhibitor Generated by click-chemistry

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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