Reviewed,
UniProtKB/Swiss-Prot Q96RR4 (KKCC2_HUMAN)
Last modified
October 13, 2009.
Version 75.
History...
Clusters with 100%,
90%,
50% identity |
Documents (5) |
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Names and origin
| Protein names | Recommended name: Calcium/calmodulin-dependent protein kinase kinase 2 EC=2.7.11.17 Alternative name(s): Calcium/calmodulin-dependent protein kinase kinase beta Short name=CaM-kinase kinase beta Short name=CaM-KK beta Short name=CaMKK beta | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Complete proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo |
Protein attributes
| Sequence length | 588 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | 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. Seems to be involved in hippocampal activation of CREB1 By similarity. |
| Catalytic activity | ATP + a protein = ADP + a phosphoprotein. |
| Enzyme regulation | Activated by Ca2+/calmodulin. Binding of calmodulin may releave intrasteric autoinhibition. Autophosphorylation does not alter activity or regulation by Ca2+/calmodulin. In part, activity is independent on Ca2+/calmodulin By similarity. |
| Subunit structure | Interacts with calmodulin By similarity. |
| Subcellular location | Cytoplasm By similarity. |
| Tissue specificity | Ubiquitously expressed with higher levels in the brain. Intermediate levels are detected in spleen, prostate, thyroid and leukocytes. The lowest level is in lung. Ref.8 |
| Domain | The autoinhibitory domain overlaps with the calmodulin binding region and may be involved in intrasteric autoinhibition. The RP domain (arginine/proline-rich) is involved in the recognition of CAMKI and CAMK4 as substrates By similarity. |
| Post-translational modification | Autophosphorylated By similarity. |
| Sequence similarities | Belongs to the protein kinase superfamily. Ser/Thr protein kinase family. Contains 1 protein kinase domain. |
| Sequence caution | The sequence CAD38990.1 differs from that shown. Reason: Miscellaneous discrepancy. Intron retention. |
Ontologies
Alternative products
| This entry describes 7 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q96RR4-1) Also known as: Beta1; This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Note: Major isoform. | ||||||
| Isoform 2 (identifier: Q96RR4-2) Also known as: Beta2; The sequence of this isoform differs from the canonical sequence as follows: 533-533: E → T 534-554: Missing. 555-588: Missing. | ||||||
| Note: Major isoform. | ||||||
| Isoform 3 (identifier: Q96RR4-3) Also known as: Beta1delta16; The sequence of this isoform differs from the canonical sequence as follows: 520-532: KPTRECESLSELK → QGSEDNLQGTDPP 533-541: EARQRRQPP → PVGEEEVLL 542-554: Missing. 555-588: Missing. | ||||||
| Note: Phosphorylated on Ser-522. | ||||||
| Isoform 4 (identifier: Q96RR4-4) Also known as: Beta1delta14; The sequence of this isoform differs from the canonical sequence as follows: 442-484: Missing. | ||||||
| Note: Inactive. Does not activate CAMK1 and CAMK4. Phosphorylated on Ser-479. | ||||||
| Isoform 5 (identifier: Q96RR4-5) Also known as: Beta1delta14/16; beta-3x; The sequence of this isoform differs from the canonical sequence as follows: 442-484: Missing. 520-532: KPTRECESLSELK → QGSEDNLQGTDPP 533-541: EARQRRQPP → PVGEEEVLL 542-554: Missing. 555-588: Missing. | ||||||
| Note: Inactive. Does not activate CAMK1 and CAMK4. | ||||||
| Isoform 6 (identifier: Q96RR4-6) Also known as: Beta2delta14; The sequence of this isoform differs from the canonical sequence as follows: 442-484: Missing. 533-533: E → T 534-554: Missing. 555-588: Missing. | ||||||
| Note: Inactive. Does not activate CAMK1 and CAMK4. | ||||||
| Isoform 7 (identifier: Q96RR4-7) The sequence of this isoform differs from the canonical sequence as follows: 533-554: EARQRRQPPGHRPAPRGGGGSA → GTKKKKGLDSMTSTVAAGWLDRRV 555-588: Missing. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 588 | 588 | Calcium/calmodulin-dependent protein kinase kinase 2 | PRO_0000086144 | |||||
Regions | |||||||||
| Domain | 165 – 446 | 282 | Protein kinase | ||||||
| Nucleotide binding | 171 – 179 | 9 | ATP By similarity | ||||||
| Region | 204 – 226 | 23 | RP domain | ||||||
| Region | 472 – 477 | 6 | Autoinhibitory domain By similarity | ||||||
| Region | 475 – 500 | 26 | Calmodulin-binding By similarity | ||||||
Sites | |||||||||
| Active site | 312 | 1 | Proton acceptor By similarity | ||||||
| Binding site | 194 | 1 | ATP By similarity | ||||||
Amino acid modifications | |||||||||
| Modified residue | 129 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 133 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 495 | 1 | Phosphoserine Ref.11 | ||||||
| Modified residue | 511 | 1 | Phosphoserine Ref.11 | ||||||
Natural variations | |||||||||
| Alternative sequence | 442 – 484 | 43 | Missing in isoform 4, isoform 5 and isoform 6. | VSP_012142 | |||||
| Alternative sequence | 520 – 532 | 13 | KPTRE…LSELK → QGSEDNLQGTDPP in isoform 3 and isoform 5. | VSP_012143 | |||||
| Alternative sequence | 533 – 554 | 22 | EARQR…GGGSA → GTKKKKGLDSMTSTVAAGWL DRRV in isoform 7. | VSP_012148 | |||||
| Alternative sequence | 533 – 541 | 9 | EARQRRQPP → PVGEEEVLL in isoform 3 and isoform 5. | VSP_012144 | |||||
| Alternative sequence | 533 | 1 | E → T in isoform 2 and isoform 6. | VSP_012146 | |||||
| Alternative sequence | 534 – 554 | 21 | Missing in isoform 2 and isoform 6. | VSP_012147 | |||||
| Alternative sequence | 542 – 554 | 13 | Missing in isoform 3 and isoform 5. | VSP_012145 | |||||
| Alternative sequence | 555 – 588 | 34 | Missing in isoform 2, isoform 3, isoform 5, isoform 6 and isoform 7. | VSP_012149 | |||||
| Natural variant | 10 | 1 | S → N: dbSNP rs28360477. Ref.12 | VAR_032788 | |||||
| Natural variant | 85 | 1 | S → T: dbSNP rs3817190. Ref.12 Ref.1 Ref.2 Ref.3 Ref.6 | VAR_020532 | |||||
| Natural variant | 123 | 1 | C → Y | VAR_040610 | |||||
| Natural variant | 127 | 1 | P → L in a lung neuroendocrine carcinoma sample; somatic mutation. Ref.12 | VAR_040611 | |||||
| Natural variant | 182 | 1 | A → T in a colorectal adenocarcinoma sample; somatic mutation. Ref.12 | VAR_040612 | |||||
| Natural variant | 363 | 1 | R → C: dbSNP rs1132780. | VAR_020533 | |||||
| Natural variant | 492 | 1 | R → H | VAR_040613 | |||||
Experimental info | |||||||||
| Sequence conflict | 206 | 1 | G → A in AAD31507. Ref.2 | ||||||
| Sequence conflict | 331 | 1 | F → I in BAF84761. Ref.6 | ||||||
| Sequence conflict | 347 | 1 | T → Y in AAD31507. Ref.2 | ||||||
| Sequence conflict | 371 | 1 | L → K in AAD31507. Ref.2 | ||||||
| Sequence conflict | 554 | 1 | A → H in AAK91829. Ref.1 | ||||||
| Sequence conflict | 557 | 1 | R → N in AAK91829. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Human Ca2+/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity." Hsu L.-S., Chen G.-D., Lee L.-S., Chi C.-W., Cheng J.-F., Chen J.-Y. J. Biol. Chem. 276:31113-31123(2001) [PubMed: 11395482] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA] (ISOFORMS 1; 2; 3; 4; 5 AND 6), FUNCTION, VARIANT THR-85. |
| [2] | "Components of a calmodulin-dependent protein kinase cascade. Molecular cloning, functional characterization and cellular localization of Ca2+/calmodulin-dependent protein kinase kinase beta." Anderson K.A., Means R.L., Huang Q.-H., Kemp B.E., Goldstein E.G., Selbert M.A., Edelman A.M., Fremeau R.T., Means A.R. J. Biol. Chem. 273:31880-31889(1998) [PubMed: 9822657] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), VARIANT THR-85. Tissue: Brain cortex. |
| [3] | "Identification and characterization of novel components of a Ca2+/calmodulin-dependent protein kinase cascade in HeLa cells." Ishikawa Y., Tokumitsu H., Inuzuka H., Murata-Hori M., Hosoya H., Kobayashi R. FEBS Lett. 550:57-63(2003) [PubMed: 12935886] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3), FUNCTION IN PHOSPHORYLATION OF CAMK1D, VARIANT THR-85. |
| [4] | "Prediction of the coding sequences of unidentified human genes. XI. The complete sequences of 100 new cDNA clones from brain which code for large proteins in vitro." Nagase T., Ishikawa K., Suyama M., Kikuno R., Miyajima N., Tanaka A., Kotani H., Nomura N., Ohara O. DNA Res. 5:277-286(1998) [PubMed: 9872452] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 7). Tissue: Brain. |
| [5] | "Construction of expression-ready cDNA clones for KIAA genes: manual curation of 330 KIAA cDNA clones." Nakajima D., Okazaki N., Yamakawa H., Kikuno R., Ohara O., Nagase T. DNA Res. 9:99-106(2002) [PubMed: 12168954] [Abstract] Cited for: SEQUENCE REVISION. |
| [6] | "Complete sequencing and characterization of 21,243 full-length human cDNAs." Ota T., Suzuki Y., Nishikawa T., Otsuki T., Sugiyama T., Irie R., Wakamatsu A., Hayashi K., Sato H., Nagai K., Kimura K., Makita H., Sekine M., Obayashi M., Nishi T., Shibahara T., Tanaka T., Ishii S. Sugano S.Nat. Genet. 36:40-45(2004) [PubMed: 14702039] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 3), VARIANT THR-85. Tissue: Stomach. |
| [7] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 3), NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 233-588 (ISOFORM 5). Tissue: Placenta. |
| [8] | "Cloning, expression and chromosomal localization of human Ca2+/calmodulin-dependent protein kinase kinase." Hsu L.-S., Tsou A.-P., Chi C.-W., Lee C.-H., Chen J.-Y. J. Biomed. Sci. 5:141-149(1998) [PubMed: 9662074] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 117-588 (ISOFORM 2), FUNCTION IN PHOSPHORYLATION OF CAMK1, TISSUE SPECIFICITY. |
| [9] | "The full-ORF clone resource of the German cDNA consortium." Bechtel S., Rosenfelder H., Duda A., Schmidt C.P., Ernst U., Wellenreuther R., Mehrle A., Schuster C., Bahr A., Bloecker H., Heubner D., Hoerlein A., Michel G., Wedler H., Koehrer K., Ottenwaelder B., Poustka A., Wiemann S., Schupp I. BMC Genomics 8:399-399(2007) [PubMed: 17974005] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 254-588 (ISOFORM 7). Tissue: Amygdala. |
| [10] | "Full-insert sequence of mapped XREF EST." Barrow I.K.-P., Boguski M.S., Touchman J.W., Spencer F. Submitted (AUG-1998) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 338-533 (ISOFORM 2). |
| [11] | "Kinase-selective enrichment enables quantitative phosphoproteomics of the kinome across the cell cycle." Daub H., Olsen J.V., Bairlein M., Gnad F., Oppermann F.S., Korner R., Greff Z., Keri G., Stemmann O., Mann M. Mol. Cell 31:438-448(2008) [PubMed: 18691976] [Abstract] Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-495 AND SER-511, PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-522 (ISOFORM 3), PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-479 (ISOFORM 5), MASS SPECTROMETRY. |
| [12] | "Patterns of somatic mutation in human cancer genomes." Greenman C., Stephens P., Smith R., Dalgliesh G.L., Hunter C., Bignell G., Davies H., Teague J., Butler A., Stevens C., Edkins S., O'Meara S., Vastrik I., Schmidt E.E., Avis T., Barthorpe S., Bhamra G., Buck G. Stratton M.R.Nature 446:153-158(2007) [PubMed: 17344846] [Abstract] Cited for: VARIANTS [LARGE SCALE ANALYSIS] ASN-10; THR-85; TYR-123; LEU-127; THR-182 AND HIS-492. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| AB081337 mRNA. Translation: BAC19841.1. AF287630 mRNA. Translation: AAK64600.1. AF287631 mRNA. Translation: AAK64601.1. AF321385 mRNA. Translation: AAL37215.1. AF321386 mRNA. Translation: AAL37216.1. AF321387 mRNA. Translation: AAL37217.1. AF321388 mRNA. Translation: AAL37218.1. AF321401 AF321578 Genomic DNA. Translation: AAK91830.1. AF321402 AF321578 Genomic DNA. Translation: AAK91829.1. AF140507 mRNA. Translation: AAD31507.1. AB081336 mRNA. Translation: BAC19840.1. AB018330 mRNA. Translation: BAA34507.2. Different initiation. AK292072 mRNA. Translation: BAF84761.1. BC000318 mRNA. Translation: AAH00318.2. BC026060 mRNA. Translation: AAH26060.1. AF101264 mRNA. Translation: AAD04566.1. AL834322 mRNA. Translation: CAD38990.1. Sequence problems. AF091074 mRNA. Translation: AAC72943.1. Different initiation. | |
| IPI | IPI00170509. IPI00172426. IPI00172500. IPI00172501. IPI00290239. IPI00292156. IPI00479420. |
| PIR | JE0191. |
| RefSeq | NP_006540.3. NP_705719.2. NP_705720.1. NP_757363.1. NP_757364.1. NP_757365.1. NP_757380.1. |
| UniGene | Hs.297343 |
3D structure databases | |
| HSSP | HSSP built from PDB template 1OL6 based on UniProtKB O14965. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | Q96RR4. 5 interactions. |
| STRING | Q96RR4. |
PTM databases | |
| PhosphoSite | Q96RR4. |
Proteomic databases | |
| PRIDE | Q96RR4. |
Genome annotation databases | |
| Ensembl | ENST00000324774; ENSP00000312741; ENSG00000110931; Homo sapiens. [Genome view] ENST00000337174; ENSP00000336634; ENSG00000110931; Homo sapiens. [Genome view] ENST00000347034; ENSP00000321230; ENSG00000110931; Homo sapiens. [Genome view] ENST00000360452; ENSP00000353636; ENSG00000110931; Homo sapiens. [Genome view] ENST00000392473; ENSP00000376265; ENSG00000110931; Homo sapiens. [Genome view] ENST00000392474; ENSP00000376266; ENSG00000110931; Homo sapiens. [Genome view] ENST00000402834; ENSP00000384591; ENSG00000110931; Homo sapiens. [Genome view] ENST00000404169; ENSP00000384600; ENSG00000110931; Homo sapiens. [Genome view] ENST00000412367; ENSP00000388368; ENSG00000110931; Homo sapiens. [Genome view] ENST00000446440; ENSP00000388273; ENSG00000110931; Homo sapiens. [Genome view] |
| GeneID | 10645. |
| KEGG | hsa:10645. |
| UCSC | uc001tzt.1. human. uc001tzu.1. human. uc001tzw.1. human. uc001tzy.1. human. uc001uaa.1. human. uc001uab.1. human. uc001uac.1. human. |
Organism-specific databases | |
| CTD | 10645. |
| GeneCards | GC12M120138. |
| H-InvDB | HIX0011079. |
| HGNC | HGNC:1470. CAMKK2. |
| HPA | HPA017389. |
| PharmGKB | PA26052. |
| HUGE | Search... |
| GenAtlas | Search... |
Phylogenomic databases | |
| HOVERGEN | Q96RR4. |
Enzyme and pathway databases | |
| BRENDA | 2.7.11.17. 247. |
Gene expression databases | |
| ArrayExpress | Q96RR4. |
| Bgee | Q96RR4. |
| CleanEx | HS_CAMKK2. |
| Genevestigator | Q96RR4. |
| GermOnline | ENSG00000110931. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR000719. Prot_kinase_core. IPR017441. Protein_kinase_ATP_BS. IPR017442. Se/Thr_pkinase-rel. IPR008271. Ser_thr_pkin_AS. IPR002290. Ser_thr_pkinase. [Graphical view] |
| Pfam | PF00069. Pkinase. 1 hit. [Graphical view] |
| ProDom | PD000001. Prot_kinase. 1 hit. [Graphical view] [Entries sharing at least one domain] |
| SMART | SM00220. S_TKc. 1 hit. [Graphical view] |
| PROSITE | PS00107. PROTEIN_KINASE_ATP. 1 hit. PS50011. PROTEIN_KINASE_DOM. 1 hit. PS00108. PROTEIN_KINASE_ST. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 40461. |
Entry information
| Entry name | KKCC2_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q96RR4 Secondary accession number(s): A8K7Q7 Q9Y5N2 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||
| Disclaimer | Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. | ||||||||
Relevant documents
| Human chromosome 12 Human chromosome 12: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| Human and mouse protein kinases Human and mouse protein kinases: classification and index |
| SIMILARITY comments Index of protein domains and families |

Clusters with


