2pvr

From Proteopedia

(Difference between revisions)

Revision as of 09:33, 18 October 2017

Crystal structure of the catalytic subunit of protein kinase CK2 (C-terminal deletion mutant 1-335) in complex with two sulfate ions

Structural highlights

2pvr is a 1 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	1pjk, 1lp4, 1day, 1ymi, 1jwh, 1lpu
Gene:	CSNK2A1, CK2A1 (HUMAN)
Activity:	Non-specific serine/threonine protein kinase, with EC number 2.7.11.1
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

CK2alpha is the catalytic subunit of protein kinase CK2 and a member of the CMGC family of eukaryotic protein kinases like the cyclin-dependent kinases, the MAP kinases and glycogen-synthase kinase 3. We present here a 1.6 A resolution crystal structure of a fully active C-terminal deletion mutant of human CK2alpha liganded by two sulfate ions, and we compare this structure systematically with representative structures of related CMGC kinases. The two sulfate anions occupy binding pockets at the activation segment and provide the structural basis of the acidic consensus sequence S/T-D/E-X-D/E that governs substrate recognition by CK2. The anion binding sites are conserved among those CMGC kinases. In most cases they are neutralized by phosphorylation of a neighbouring threonine or tyrosine side-chain, which triggers conformational changes for regulatory purposes. CK2alpha, however, lacks both phosphorylation sites at the activation segment and structural plasticity. Here the anion binding sites are functionally changed from regulation to substrate recognition. These findings underline the exceptional role of CK2alpha as a constitutively active enzyme within a family of strictly controlled protein kinases.

Evolved to be active: sulfate ions define substrate recognition sites of CK2alpha and emphasise its exceptional role within the CMGC family of eukaryotic protein kinases.,Niefind K, Yde CW, Ermakova I, Issinger OG J Mol Biol. 2007 Jul 13;370(3):427-38. Epub 2007 May 5. PMID:17524418^[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
↑ Niefind K, Yde CW, Ermakova I, Issinger OG. Evolved to be active: sulfate ions define substrate recognition sites of CK2alpha and emphasise its exceptional role within the CMGC family of eukaryotic protein kinases. J Mol Biol. 2007 Jul 13;370(3):427-38. Epub 2007 May 5. PMID:17524418 doi:http://dx.doi.org/10.1016/j.jmb.2007.04.068

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2pvr"

@@ Line 1: / Line 1: @@
 ==Crystal structure of the catalytic subunit of protein kinase CK2 (C-terminal deletion mutant 1-335) in complex with two sulfate ions==
 <StructureSection load='2pvr' size='340' side='right' caption='[[2pvr]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
@@ Line 7: / Line 8: @@
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CSNK2A1, CK2A1 ([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/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=2pvr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pvr OCA], [http://pdbe.org/2pvr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pvr RCSB], [http://www.ebi.ac.uk/pdbsum/2pvr 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=2pvr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2pvr OCA], [http://pdbe.org/2pvr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2pvr RCSB], [http://www.ebi.ac.uk/pdbsum/2pvr PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2pvr ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 19: / Line 20: @@
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
-</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
+</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2pvr ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 30: / Line 31: @@
 </div>
 <div class="pdbe-citations 2pvr" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Casein kinase|Casein kinase]]
 == References ==
 <references/>

2pvr

From Proteopedia

Revision as of 09:33, 18 October 2017

Crystal structure of the catalytic subunit of protein kinase CK2 (C-terminal deletion mutant 1-335) in complex with two sulfate ions

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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