|
|
| Line 3: |
Line 3: |
| | <StructureSection load='2zv2' size='340' side='right'caption='[[2zv2]], [[Resolution|resolution]] 2.40Å' scene=''> | | <StructureSection load='2zv2' size='340' side='right'caption='[[2zv2]], [[Resolution|resolution]] 2.40Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[2zv2]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ZV2 OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=2ZV2 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[2zv2]] is a 1 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=2ZV2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ZV2 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=609:7-OXO-7H-BENZIMIDAZO[2,1-A]BENZ[DE]ISOQUINOLINE-3-CARBOXYLIC+ACID'>609</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]] 2.4Å</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Calcium/calmodulin-dependent_protein_kinase Calcium/calmodulin-dependent protein kinase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.11.17 2.7.11.17] </span></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=609:7-OXO-7H-BENZIMIDAZO[2,1-A]BENZ[DE]ISOQUINOLINE-3-CARBOXYLIC+ACID'>609</scene></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=2zv2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zv2 OCA], [http://pdbe.org/2zv2 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zv2 RCSB], [http://www.ebi.ac.uk/pdbsum/2zv2 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zv2 ProSAT], [http://www.topsan.org/Proteins/RSGI/2zv2 TOPSAN]</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=2zv2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zv2 OCA], [https://pdbe.org/2zv2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2zv2 RCSB], [https://www.ebi.ac.uk/pdbsum/2zv2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2zv2 ProSAT], [https://www.topsan.org/Proteins/RSGI/2zv2 TOPSAN]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/KKCC2_HUMAN KKCC2_HUMAN]] Calcium/calmodulin-dependent protein kinase belonging to a proposed calcium-triggered signaling cascade involved in a number of cellular processes. Isoform 1, isoform 2 and isoform 3 phosphorylate CAMK1 and CAMK4. Isoform 3 phosphorylates CAMK1D. Isoform 4, isoform 5 and isoform 6 lacking part of the calmodulin-binding domain are inactive. Efficiently phosphorylates 5'-AMP-activated protein kinase (AMPK) trimer, including that consisting of PRKAA1, PRKAB1 and PRKAG1. This phosphorylation is stimulated in response to Ca(2+) signals (By similarity). Seems to be involved in hippocampal activation of CREB1 (By similarity). May play a role in neurite growth. Isoform 3 may promote neurite elongation, while isoform 1 may promoter neurite branching.<ref>PMID:11395482</ref> <ref>PMID:12935886</ref> <ref>PMID:9662074</ref> <ref>PMID:21957496</ref> | + | [https://www.uniprot.org/uniprot/KKCC2_HUMAN KKCC2_HUMAN] Calcium/calmodulin-dependent protein kinase belonging to a proposed calcium-triggered signaling cascade involved in a number of cellular processes. Isoform 1, isoform 2 and isoform 3 phosphorylate CAMK1 and CAMK4. Isoform 3 phosphorylates CAMK1D. Isoform 4, isoform 5 and isoform 6 lacking part of the calmodulin-binding domain are inactive. Efficiently phosphorylates 5'-AMP-activated protein kinase (AMPK) trimer, including that consisting of PRKAA1, PRKAB1 and PRKAG1. This phosphorylation is stimulated in response to Ca(2+) signals (By similarity). Seems to be involved in hippocampal activation of CREB1 (By similarity). May play a role in neurite growth. Isoform 3 may promote neurite elongation, while isoform 1 may promoter neurite branching.<ref>PMID:11395482</ref> <ref>PMID:12935886</ref> <ref>PMID:9662074</ref> <ref>PMID:21957496</ref> |
| | == Evolutionary Conservation == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
| Line 37: |
Line 37: |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Calcium/calmodulin-dependent protein kinase]] | + | [[Category: Homo sapiens]] |
| - | [[Category: Human]]
| + | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Kukimoto-niino, M]] | + | [[Category: Kukimoto-niino M]] |
| - | [[Category: Lee, S]] | + | [[Category: Lee S]] |
| - | [[Category: Minokoshi, Y]] | + | [[Category: Minokoshi Y]] |
| - | [[Category: Structural genomic]]
| + | [[Category: Shirouzu M]] |
| - | [[Category: Shirouzu, M]] | + | [[Category: Suzuki A]] |
| - | [[Category: Suzuki, A]] | + | [[Category: Yokoyama S]] |
| - | [[Category: Yokoyama, S]] | + | [[Category: Yoshikawa S]] |
| - | [[Category: Yoshikawa, S]] | + | |
| - | [[Category: Ampkk]]
| + | |
| - | [[Category: Atp-binding]]
| + | |
| - | [[Category: Beta]]
| + | |
| - | [[Category: Calcium/calmodulin-dependent protein kinase kinase 2]]
| + | |
| - | [[Category: Calmodulin-binding]]
| + | |
| - | [[Category: Camkk2]]
| + | |
| - | [[Category: E c.2 7.11 17]]
| + | |
| - | [[Category: Kinase]]
| + | |
| - | [[Category: Metabolism]]
| + | |
| - | [[Category: National project on protein structural and functional analyse]]
| + | |
| - | [[Category: Nppsfa]]
| + | |
| - | [[Category: Nucleotide-binding]]
| + | |
| - | [[Category: Phosphoprotein]]
| + | |
| - | [[Category: Phosphorylation]]
| + | |
| - | [[Category: Rsgi]]
| + | |
| - | [[Category: Serine/threonine-protein kinase]]
| + | |
| - | [[Category: Sto-609]]
| + | |
| - | [[Category: Transferase]]
| + | |
| - | [[Category: Transferase-transferase inhibitor complex]]
| + | |
| Structural highlights
Function
KKCC2_HUMAN Calcium/calmodulin-dependent protein kinase belonging to a proposed calcium-triggered signaling cascade involved in a number of cellular processes. Isoform 1, isoform 2 and isoform 3 phosphorylate CAMK1 and CAMK4. Isoform 3 phosphorylates CAMK1D. Isoform 4, isoform 5 and isoform 6 lacking part of the calmodulin-binding domain are inactive. Efficiently phosphorylates 5'-AMP-activated protein kinase (AMPK) trimer, including that consisting of PRKAA1, PRKAB1 and PRKAG1. This phosphorylation is stimulated in response to Ca(2+) signals (By similarity). Seems to be involved in hippocampal activation of CREB1 (By similarity). May play a role in neurite growth. Isoform 3 may promote neurite elongation, while isoform 1 may promoter neurite branching.[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
Ca(2+)/calmodulin (CaM)-dependent protein kinase (CaMK) kinase (CaMKK) is a member of the CaMK cascade that mediates the response to intracellular Ca(2+) elevation. CaMKK phosphorylates and activates CaMKI and CaMKIV, which directly activate transcription factors. In this study, we determined the 2.4 A crystal structure of the catalytic kinase domain (KD) of the human CaMKK beta isoform complexed with its selective inhibitor, STO-609. The structure revealed that CaMKKbeta lacks the alphaD helix and that the equivalent region displays a hydrophobic molecular surface, which may reflect its unique substrate recognition and autoinhibition. Although CaMKKbeta lacks the activation-loop phosphorylation site, the activation loop is folded in an active-state conformation, which is stabilized by a number of interactions between amino acid residues conserved among the CaMKK isoforms. An in vitro analysis of the kinase activity confirmed the intrinsic activity of the CaMKKbeta KD. Structure and sequence analyses of the STO-609-binding site revealed amino-acid replacements that may affect the inhibitor binding. Indeed, mutagenesis demonstrated that the CaMKKbeta residue Pro274, which replaces the conserved acidic residue of other protein kinases, is an important determinant for the selective inhibition by STO-609. Therefore, the present structure provides a molecular basis for clarifying the known biochemical properties of CaMKKbeta, and for designing novel inhibitors targeting CaMKKbeta and the related protein kinases.
Crystal structure of the CA2+/calmodulin-dependent protein kinase kinase in complex with the inhibitor STO-609.,Kukimoto-Niino M, Yoshikawa S, Takagi T, Ohsawa N, Tomabechi Y, Terada T, Shirouzu M, Suzuki A, Lee S, Yamauchi T, Okada-Iwabu M, Iwabu M, Kadowaki T, Minokoshi Y, Yokoyama S J Biol Chem. 2011 Apr 19. PMID:21504895[5]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Hsu LS, Chen GD, Lee LS, Chi CW, Cheng JF, Chen JY. Human Ca2+/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity. J Biol Chem. 2001 Aug 17;276(33):31113-23. Epub 2001 Jun 6. PMID:11395482 doi:http://dx.doi.org/10.1074/jbc.M011720200
- ↑ Ishikawa Y, Tokumitsu H, Inuzuka H, Murata-Hori M, Hosoya H, Kobayashi R. Identification and characterization of novel components of a Ca2+/calmodulin-dependent protein kinase cascade in HeLa cells. FEBS Lett. 2003 Aug 28;550(1-3):57-63. PMID:12935886
- ↑ Hsu LS, Tsou AP, Chi CW, Lee CH, Chen JY. Cloning, expression and chromosomal localization of human Ca2+/calmodulin-dependent protein kinase kinase. J Biomed Sci. 1998;5(2):141-9. PMID:9662074
- ↑ Cao W, Sohail M, Liu G, Koumbadinga GA, Lobo VG, Xie J. Differential effects of PKA-controlled CaMKK2 variants on neuronal differentiation. RNA Biol. 2011 Nov-Dec;8(6):1061-72. doi: 10.4161/rna.8.6.16691. Epub 2011 Nov 1. PMID:21957496 doi:http://dx.doi.org/10.4161/rna.8.6.16691
- ↑ Kukimoto-Niino M, Yoshikawa S, Takagi T, Ohsawa N, Tomabechi Y, Terada T, Shirouzu M, Suzuki A, Lee S, Yamauchi T, Okada-Iwabu M, Iwabu M, Kadowaki T, Minokoshi Y, Yokoyama S. Crystal structure of the CA2+/calmodulin-dependent protein kinase kinase in complex with the inhibitor STO-609. J Biol Chem. 2011 Apr 19. PMID:21504895 doi:10.1074/jbc.M111.251710
|
