|
|
| Line 3: |
Line 3: |
| | <StructureSection load='7at5' size='340' side='right'caption='[[7at5]], [[Resolution|resolution]] 1.77Å' scene=''> | | <StructureSection load='7at5' size='340' side='right'caption='[[7at5]], [[Resolution|resolution]] 1.77Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[7at5]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AT5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AT5 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[7at5]] 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=7AT5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AT5 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=42J:2-(3,4-DICHLOROPHENYL)ETHANAMINE'>42J</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=RXE:~{N}-[2-(3,4-dichlorophenyl)ethyl]-~{N}-[4-[4,5,6,7-tetrakis(bromanyl)benzimidazol-1-yl]butyl]butanediamide'>RXE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.77Å</td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CSNK2A1, CK2A1 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=42J:2-(3,4-DICHLOROPHENYL)ETHANAMINE'>42J</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=RXE:~{N}-[2-(3,4-dichlorophenyl)ethyl]-~{N}-[4-[4,5,6,7-tetrakis(bromanyl)benzimidazol-1-yl]butyl]butanediamide'>RXE</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'>[https://en.wikipedia.org/wiki/Non-specific_serine/threonine_protein_kinase Non-specific serine/threonine protein kinase], with EC number [https://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'>[https://proteopedia.org/fgij/fg.htm?mol=7at5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7at5 OCA], [https://pdbe.org/7at5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7at5 RCSB], [https://www.ebi.ac.uk/pdbsum/7at5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7at5 ProSAT]</span></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=7at5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7at5 OCA], [https://pdbe.org/7at5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7at5 RCSB], [https://www.ebi.ac.uk/pdbsum/7at5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7at5 ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[https://www.uniprot.org/uniprot/CSK21_HUMAN 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.<ref>PMID:11239457</ref> <ref>PMID:11704824</ref> <ref>PMID:16193064</ref> <ref>PMID:19188443</ref>
| + | [https://www.uniprot.org/uniprot/CSK21_HUMAN 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.<ref>PMID:11239457</ref> <ref>PMID:11704824</ref> <ref>PMID:16193064</ref> <ref>PMID:19188443</ref> |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 24: |
Line 23: |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Human]] | + | [[Category: Homo sapiens]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Non-specific serine/threonine protein kinase]]
| + | [[Category: Applegate V]] |
| - | [[Category: Applegate, V]] | + | [[Category: Goetz C]] |
| - | [[Category: Goetz, C]] | + | [[Category: Jose J]] |
| - | [[Category: Jose, J]] | + | [[Category: Klussmann M]] |
| - | [[Category: Klussmann, M]] | + | [[Category: Lindenblatt D]] |
| - | [[Category: Lindenblatt, D]] | + | [[Category: Neundorf I]] |
| - | [[Category: Neundorf, I]] | + | [[Category: Nickelsen A]] |
| - | [[Category: Nickelsen, A]] | + | [[Category: Niefind K]] |
| - | [[Category: Niefind, K]] | + | |
| - | [[Category: Bivalent inhibitor]]
| + | |
| - | [[Category: Casein kinase 2]]
| + | |
| - | [[Category: Protein kinase ck2]]
| + | |
| - | [[Category: Transferase]]
| + | |
| Structural highlights
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
CK2alpha and CK2alpha' are paralogous catalytic subunits of CK2, which belongs to the eukaryotic protein kinases. CK2 promotes tumorigenesis and the spread of pathogenic viruses like SARS-CoV-2 and is thus an attractive drug target. Efforts to develop selective CK2 inhibitors binding offside the ATP site had disclosed the alphaD pocket in CK2alpha; its occupation requires large conformational adaptations of the helix alphaD. As shown here, the alphaD pocket is accessible also in CK2alpha', where the necessary structural plasticity can be triggered with suitable ligands even in the crystalline state. A CK2alpha' structure with an ATP site and an alphaD pocket ligand guided the design of the bivalent CK2 inhibitor KN2. It binds to CK2 with low nanomolar affinity, is cell-permeable, and suppresses the intracellular phosphorylation of typical CK2 substrates. Kinase profiling revealed a high selectivity of KN2 for CK2 and emphasizes the selectivity-promoting potential of the alphaD pocket.
Molecular Plasticity of Crystalline CK2alpha' Leads to KN2, a Bivalent Inhibitor of Protein Kinase CK2 with Extraordinary Selectivity.,Lindenblatt D, Applegate V, Nickelsen A, Klussmann M, Neundorf I, Gotz C, Jose J, Niefind K J Med Chem. 2021 Jul 29. doi: 10.1021/acs.jmedchem.1c00063. PMID:34323071[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
- ↑ Lindenblatt D, Applegate V, Nickelsen A, Klussmann M, Neundorf I, Gotz C, Jose J, Niefind K. Molecular Plasticity of Crystalline CK2alpha' Leads to KN2, a Bivalent Inhibitor of Protein Kinase CK2 with Extraordinary Selectivity. J Med Chem. 2021 Jul 29. doi: 10.1021/acs.jmedchem.1c00063. PMID:34323071 doi:http://dx.doi.org/10.1021/acs.jmedchem.1c00063
|
