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{{Infobox_gene}}
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'''Calcium/calmodulin-dependent protein kinase kinase 2''' is an [[enzyme]] that in humans is encoded by the ''CAMKK2'' [[gene]].<ref name="pmid9662074">{{cite journal | vauthors = Hsu LS, Tsou AP, Chi CW, Lee CH, Chen JY | title = Cloning, expression and chromosomal localization of human Ca<sup>2+</sup>/calmodulin-dependent protein kinase kinase | journal = J Biomed Sci | volume = 5 | issue = 2 | pages = 141–9 |date=Sep 1998 | pmid = 9662074 | pmc = | doi = 10.1159/000025324}}</ref><ref name=pmid9662074 /><ref name="entrez">{{cite web | title = Entrez Gene: CAMKK2 calcium/calmodulin-dependent protein kinase kinase 2, beta| url = https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10645| accessdate = }}</ref>
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==Function==
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The product of this gene belongs to the [[serine/threonine-specific protein kinase]] family, and to the Ca<sup>++</sup>/[[Ca2+/calmodulin-dependent protein kinase|calmodulin-dependent protein kinase]] subfamily. This protein plays a role in the calcium/calmodulin-dependent (CaM) kinase cascade by phosphorylating the downstream kinases [[CAMK1|CaMK1]] and [[CAMK4|CaMK4]].<ref name="entrez"/>
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CaMKK2 regulates production of the appetite stimulating hormone [[neuropeptide Y]] and functions as an [[AMP-activated protein kinase|AMPK]] kinase in the [[hypothalamus]].<ref name="pmid18460329">{{cite journal | vauthors = Anderson KA, Ribar TJ, Lin F, Noeldner PK, Green MF, Muehlbauer MJ, Witters LA, Kemp BE, Means AR | title = Hypothalamic CaMKK2 contributes to the regulation of energy balance | journal = Cell Metab. | volume = 7 | issue = 5 | pages = 377–88 |date=May 2008 | pmid = 18460329 | doi = 10.1016/j.cmet.2008.02.011 | url = }}</ref> It also has an important role in the development of [[hyperalgesia]] and [[Drug tolerance|tolerance]] to [[opioid]] analgesic drugs, through reduction in downstream signalling pathways and [[mu opioid receptor]] downregulation.<ref name="pmid18006024">{{cite journal |vauthors=Sánchez-Blázquez P, Rodríguez-Muñoz M, Montero C, de la Torre-Madrid E, Garzón J |title=Calcium/calmodulin-dependent protein kinase II supports morphine antinociceptive tolerance by phosphorylation of glycosylated phosducin-like protein |journal=Neuropharmacology |volume=54 |issue=2 |pages=319–30 |date=February 2008 |pmid=18006024 |doi=10.1016/j.neuropharm.2007.10.002 |url=}}</ref><ref name="pmid18408996">{{cite journal |vauthors=Chen Y, Jiang Y, Yue W, Zhou Y, Lu L, Ma L |title=Chronic, but not acute morphine treatment, up-regulates alpha-Ca<sup>2+</sup>/calmodulin dependent protein kinase II gene expression in rat brain |journal=Neurochemical Research |volume=33 |issue=10 |pages=2092–8 |date=October 2008 |pmid=18408996 |doi=10.1007/s11064-008-9690-0 |url=}}</ref><ref name="pmid20053885">{{cite journal |vauthors=Chen Y, Yang C, Wang ZJ |title=Ca<sup>2+</sup>/calmodulin-dependent protein kinase II alpha is required for the initiation and maintenance of opioid-induced hyperalgesia |journal=Journal of Neuroscience |volume=30 |issue=1 |pages=38–46 |date=January 2010 |pmid=20053885 |doi=10.1523/JNEUROSCI.4346-09.2010 |url= |pmc=2821163}}</ref> Inhibition of CaMKK2 in mice reduces appetite and promotes weight loss.<ref name="pmid18460329"/>
{{GNF_Protein_box
| image =
| image_source = 
| PDB =
| Name = Calcium/calmodulin-dependent protein kinase kinase 2, beta
| HGNCid = 1470
| Symbol = CAMKK2
| AltSymbols =; CAMKK; CAMKKB; KIAA0787; MGC15254
| OMIM =
| ECnumber =
| Homologene = 32756
| MGIid = 2444812
| GeneAtlas_image1 = PBB_GE_CAMKK2_213812_s_at_tn.png
| GeneAtlas_image2 = PBB_GE_CAMKK2_210787_s_at_tn.png
| GeneAtlas_image3 = PBB_GE_CAMKK2_212252_at_tn.png
| Function = {{GNF_GO|id=GO:0000166 |text = nucleotide binding}} {{GNF_GO|id=GO:0004674 |text = protein serine/threonine kinase activity}} {{GNF_GO|id=GO:0004685 |text = calmodulin-dependent protein kinase activity}} {{GNF_GO|id=GO:0004713 |text = protein-tyrosine kinase activity}} {{GNF_GO|id=GO:0005509 |text = calcium ion binding}} {{GNF_GO|id=GO:0005516 |text = calmodulin binding}} {{GNF_GO|id=GO:0005524 |text = ATP binding}} {{GNF_GO|id=GO:0016740 |text = transferase activity}}
| Component = {{GNF_GO|id=GO:0005622 |text = intracellular}}
| Process = {{GNF_GO|id=GO:0000165 |text = MAPKKK cascade}} {{GNF_GO|id=GO:0019722 |text = calcium-mediated signaling}} {{GNF_GO|id=GO:0045859 |text = regulation of protein kinase activity}} {{GNF_GO|id=GO:0045941 |text = positive regulation of transcription}} {{GNF_GO|id=GO:0046777 |text = protein amino acid autophosphorylation}}
| Orthologs = {{GNF_Ortholog_box
    | Hs_EntrezGene = 10645
    | Hs_Ensembl = ENSG00000110931
    | Hs_RefseqProtein = NP_006540
    | Hs_RefseqmRNA = NM_006549
    | Hs_GenLoc_db = 
    | Hs_GenLoc_chr = 12
    | Hs_GenLoc_start = 120159880
    | Hs_GenLoc_end = 120220494
    | Hs_Uniprot = Q96RR4
    | Mm_EntrezGene = 207565
    | Mm_Ensembl = ENSMUSG00000029471
    | Mm_RefseqmRNA = NM_145358
    | Mm_RefseqProtein = NP_663333
    | Mm_GenLoc_db = 
    | Mm_GenLoc_chr = 5
    | Mm_GenLoc_start = 122993796
    | Mm_GenLoc_end = 123039999
    | Mm_Uniprot = Q3TV45
  }}
}}
'''Calcium/calmodulin-dependent protein kinase kinase 2, beta''', also known as '''CAMKK2''', is a human [[gene]].<ref name="entrez">{{cite web | title = Entrez Gene: CAMKK2 calcium/calmodulin-dependent protein kinase kinase 2, beta| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10645| accessdate = }}</ref>


<!-- The PBB_Summary template is automatically maintained by Protein Box Bot.  See Template:PBB_Controls to Stop updates. -->
==Isoforms==
{{PBB_Summary
Seven transcript variants encoding six distinct isoforms have been identified for this gene. Additional splice variants have been described but their full-length nature has not been determined. The identified isoforms exhibit a distinct ability to undergo autophosphorylation and to phosphorylate the downstream kinases.<ref name="entrez"/><ref name="pmid11395482">{{cite journal | vauthors = Hsu LS, Chen GD, Lee LS, Chi CW, Cheng JF, Chen JY | title = Human Ca<sup>2+</sup>/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity | journal = J. Biol. Chem. | volume = 276 | issue = 33 | pages = 31113–23 |date=August 2001 | pmid = 11395482 | doi = 10.1074/jbc.M011720200 | url = }}</ref>
| section_title =  
| summary_text = The product of this gene belongs to the Serine/Threonine protein kinase family, and to the Ca(2+)/calmodulin-dependent protein kinase subfamily. This protein plays a role in the calcium/calmodulin-dependent (CaM) kinase cascade by phosphorylating the downstream kinases CaMK1 and CaMK4. Seven transcript variants encoding six distinct isoforms have been identified for this gene. Additional splice variants have been described but their full-length nature has not been determined. The identified isoforms exhibit a distinct ability to undergo autophosphorylation and to phosphorylate the downstream kinases.<ref name="entrez">{{cite web | title = Entrez Gene: CAMKK2 calcium/calmodulin-dependent protein kinase kinase 2, beta| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10645| accessdate = }}</ref>
}}


==References==
==References==
{{reflist|2}}
{{reflist}}
 
==External links==
* {{UCSC gene info|CAMKK2}}
 
==Further reading==
==Further reading==
{{refbegin | 2}}
{{refbegin | 2}}
{{PBB_Further_reading  
{{PBB_Further_reading  
| citations =  
| citations =  
*{{cite journal | author=Nakajima D, Okazaki N, Yamakawa H, ''et al.'' |title=Construction of expression-ready cDNA clones for KIAA genes: manual curation of 330 KIAA cDNA clones. |journal=DNA Res. |volume=9 |issue= 3 |pages= 99-106 |year= 2003 |pmid= 12168954 |doi= }}
*{{cite journal | vauthors=Nakajima D, Okazaki N, Yamakawa H |title=Construction of expression-ready cDNA clones for KIAA genes: manual curation of 330 KIAA cDNA clones |journal=DNA Res. |volume=9 |issue= 3 |pages= 99–106 |year= 2003 |pmid= 12168954 |doi=10.1093/dnares/9.3.99 |display-authors=etal}}
*{{cite journal  | author=Hsu LS, Tsou AP, Chi CW, ''et al.'' |title=Cloning, expression and chromosomal localization of human Ca2+/calmodulin-dependent protein kinase kinase. |journal=J. Biomed. Sci. |volume=5 |issue= 2 |pages= 141-9 |year= 1998 |pmid= 9662074 |doi= }}
*{{cite journal | vauthors=Anderson KA, Means RL, Huang QH |title=Components of a calmodulin-dependent protein kinase cascade. Molecular cloning, functional characterization and cellular localization of Ca<sup>2+</sup>/calmodulin-dependent protein kinase kinase beta |journal=J. Biol. Chem. |volume=273 |issue= 48 |pages= 31880–9 |year= 1998 |pmid= 9822657 |doi=10.1074/jbc.273.48.31880 |display-authors=etal}}
*{{cite journal | author=Anderson KA, Means RL, Huang QH, ''et al.'' |title=Components of a calmodulin-dependent protein kinase cascade. Molecular cloning, functional characterization and cellular localization of Ca2+/calmodulin-dependent protein kinase kinase beta. |journal=J. Biol. Chem. |volume=273 |issue= 48 |pages= 31880-9 |year= 1998 |pmid= 9822657 |doi= }}
*{{cite journal | vauthors=Nagase T, Ishikawa K, Suyama M |title=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 |journal=DNA Res. |volume=5 |issue= 5 |pages= 277–86 |year= 1999 |pmid= 9872452 |doi=10.1093/dnares/5.5.277 |display-authors=etal}}
*{{cite journal | author=Nagase T, Ishikawa K, Suyama M, ''et al.'' |title=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. |journal=DNA Res. |volume=5 |issue= 5 |pages= 277-86 |year= 1999 |pmid= 9872452 |doi= }}
*{{cite journal | vauthors=Hsu LS, Chen GD, Lee LS |title=Human Ca<sup>2+</sup>/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity |journal=J. Biol. Chem. |volume=276 |issue= 33 |pages= 31113–23 |year= 2001 |pmid= 11395482 |doi= 10.1074/jbc.M011720200 |display-authors=etal}}
*{{cite journal | author=Hsu LS, Chen GD, Lee LS, ''et al.'' |title=Human Ca2+/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity. |journal=J. Biol. Chem. |volume=276 |issue= 33 |pages= 31113-23 |year= 2001 |pmid= 11395482 |doi= 10.1074/jbc.M011720200 }}
*{{cite journal | vauthors=Strausberg RL, Feingold EA, Grouse LH |title=Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=99 |issue= 26 |pages= 16899–903 |year= 2003 |pmid= 12477932 |doi= 10.1073/pnas.242603899 | pmc=139241 |display-authors=etal}}
*{{cite journal | author=Strausberg RL, Feingold EA, Grouse LH, ''et al.'' |title=Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences. |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=99 |issue= 26 |pages= 16899-903 |year= 2003 |pmid= 12477932 |doi= 10.1073/pnas.242603899 }}
*{{cite journal | vauthors=Imai S, Okayama N, Shimizu M, Itoh M |title=Increased intracellular calcium activates serum and glucocorticoid-inducible kinase 1 (SGK1) through a calmodulin-calcium calmodulin dependent kinase kinase pathway in Chinese hamster ovary cells |journal=Life Sci. |volume=72 |issue= 20 |pages= 2199–209 |year= 2003 |pmid= 12628440 |doi=10.1016/S0024-3205(03)00092-4 }}
*{{cite journal | author=Imai S, Okayama N, Shimizu M, Itoh M |title=Increased intracellular calcium activates serum and glucocorticoid-inducible kinase 1 (SGK1) through a calmodulin-calcium calmodulin dependent kinase kinase pathway in Chinese hamster ovary cells. |journal=Life Sci. |volume=72 |issue= 20 |pages= 2199-209 |year= 2003 |pmid= 12628440 |doi= }}
*{{cite journal | vauthors=Ishikawa Y, Tokumitsu H, Inuzuka H |title=Identification and characterization of novel components of a Ca<sup>2+</sup>/calmodulin-dependent protein kinase cascade in HeLa cells |journal=FEBS Lett. |volume=550 |issue= 1-3 |pages= 57–63 |year= 2003 |pmid= 12935886 |doi=10.1016/S0014-5793(03)00817-2 |display-authors=etal}}
*{{cite journal | author=Ishikawa Y, Tokumitsu H, Inuzuka H, ''et al.'' |title=Identification and characterization of novel components of a Ca2+/calmodulin-dependent protein kinase cascade in HeLa cells. |journal=FEBS Lett. |volume=550 |issue= 1-3 |pages= 57-63 |year= 2003 |pmid= 12935886 |doi= }}
*{{cite journal | vauthors=Gerhard DS, Wagner L, Feingold EA |title=The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC) |journal=Genome Res. |volume=14 |issue= 10B |pages= 2121–7 |year= 2004 |pmid= 15489334 |doi= 10.1101/gr.2596504 | pmc=528928 |display-authors=etal}}
*{{cite journal | author=Gerhard DS, Wagner L, Feingold EA, ''et al.'' |title=The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC). |journal=Genome Res. |volume=14 |issue= 10B |pages= 2121-7 |year= 2004 |pmid= 15489334 |doi= 10.1101/gr.2596504 }}
*{{cite journal | vauthors=Hawley SA, Pan DA, Mustard KJ |title=Calmodulin-dependent protein kinase kinase-beta is an alternative upstream kinase for AMP-activated protein kinase |journal=Cell Metab. |volume=2 |issue= 1 |pages= 9–19 |year= 2005 |pmid= 16054095 |doi= 10.1016/j.cmet.2005.05.009 |display-authors=etal}}
*{{cite journal | author=Hawley SA, Pan DA, Mustard KJ, ''et al.'' |title=Calmodulin-dependent protein kinase kinase-beta is an alternative upstream kinase for AMP-activated protein kinase. |journal=Cell Metab. |volume=2 |issue= 1 |pages= 9-19 |year= 2005 |pmid= 16054095 |doi= 10.1016/j.cmet.2005.05.009 }}
*{{cite journal | vauthors=Woods A, Dickerson K, Heath R |title=Ca<sup>2+</sup>/calmodulin-dependent protein kinase kinase-beta acts upstream of AMP-activated protein kinase in mammalian cells |journal=Cell Metab. |volume=2 |issue= 1 |pages= 21–33 |year= 2005 |pmid= 16054096 |doi= 10.1016/j.cmet.2005.06.005 |display-authors=etal}}
*{{cite journal | author=Woods A, Dickerson K, Heath R, ''et al.'' |title=Ca2+/calmodulin-dependent protein kinase kinase-beta acts upstream of AMP-activated protein kinase in mammalian cells. |journal=Cell Metab. |volume=2 |issue= 1 |pages= 21-33 |year= 2005 |pmid= 16054096 |doi= 10.1016/j.cmet.2005.06.005 }}
*{{cite journal | vauthors=Novak G, Seeman P, Tallerico T |title=Increased expression of calcium/calmodulin-dependent protein kinase IIbeta in frontal cortex in schizophrenia and depression |journal=Synapse |volume=59 |issue= 1 |pages= 61–8 |year= 2006 |pmid= 16247765 |doi= 10.1002/syn.20211 }}
*{{cite journal | author=Novak G, Seeman P, Tallerico T |title=Increased expression of calcium/calmodulin-dependent protein kinase IIbeta in frontal cortex in schizophrenia and depression. |journal=Synapse |volume=59 |issue= 1 |pages= 61-8 |year= 2006 |pmid= 16247765 |doi= 10.1002/syn.20211 }}
*{{cite journal | vauthors=Stahmann N, Woods A, Carling D, Heller R |title=Thrombin activates AMP-activated protein kinase in endothelial cells via a pathway involving Ca<sup>2+</sup>/calmodulin-dependent protein kinase kinase beta |journal=Mol. Cell. Biol. |volume=26 |issue= 16 |pages= 5933–45 |year= 2006 |pmid= 16880506 |doi= 10.1128/MCB.00383-06 | pmc=1592798 }}
*{{cite journal | author=Stahmann N, Woods A, Carling D, Heller R |title=Thrombin activates AMP-activated protein kinase in endothelial cells via a pathway involving Ca2+/calmodulin-dependent protein kinase kinase beta. |journal=Mol. Cell. Biol. |volume=26 |issue= 16 |pages= 5933-45 |year= 2006 |pmid= 16880506 |doi= 10.1128/MCB.00383-06 }}
*{{cite journal | vauthors=Erhardt A, Lucae S, Unschuld PG |title=Association of polymorphisms in P2RX7 and CaMKKb with anxiety disorders |journal=Journal of Affective Disorders |volume=101 |issue= 1-3 |pages= 159–68 |year= 2007 |pmid= 17197037 |doi= 10.1016/j.jad.2006.11.016 |display-authors=etal}}
*{{cite journal | author=Erhardt A, Lucae S, Unschuld PG, ''et al.'' |title=Association of polymorphisms in P2RX7 and CaMKKb with anxiety disorders. |journal=Journal of affective disorders |volume=101 |issue= 1-3 |pages= 159-68 |year= 2007 |pmid= 17197037 |doi= 10.1016/j.jad.2006.11.016 }}
}}
}}
{{refend}}
{{refend}}


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Latest revision as of 09:10, 30 August 2017

VALUE_ERROR (nil)
Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

n/a

n/a

RefSeq (protein)

n/a

n/a

Location (UCSC)n/an/a
PubMed searchn/an/a
Wikidata
View/Edit Human

Calcium/calmodulin-dependent protein kinase kinase 2 is an enzyme that in humans is encoded by the CAMKK2 gene.[1][1][2]

Function

The product of this gene belongs to the serine/threonine-specific protein kinase family, and to the Ca++/calmodulin-dependent protein kinase subfamily. This protein plays a role in the calcium/calmodulin-dependent (CaM) kinase cascade by phosphorylating the downstream kinases CaMK1 and CaMK4.[2]

CaMKK2 regulates production of the appetite stimulating hormone neuropeptide Y and functions as an AMPK kinase in the hypothalamus.[3] It also has an important role in the development of hyperalgesia and tolerance to opioid analgesic drugs, through reduction in downstream signalling pathways and mu opioid receptor downregulation.[4][5][6] Inhibition of CaMKK2 in mice reduces appetite and promotes weight loss.[3]

Isoforms

Seven transcript variants encoding six distinct isoforms have been identified for this gene. Additional splice variants have been described but their full-length nature has not been determined. The identified isoforms exhibit a distinct ability to undergo autophosphorylation and to phosphorylate the downstream kinases.[2][7]

References

  1. 1.0 1.1 Hsu LS, Tsou AP, Chi CW, Lee CH, Chen JY (Sep 1998). "Cloning, expression and chromosomal localization of human Ca2+/calmodulin-dependent protein kinase kinase". J Biomed Sci. 5 (2): 141–9. doi:10.1159/000025324. PMID 9662074.
  2. 2.0 2.1 2.2 "Entrez Gene: CAMKK2 calcium/calmodulin-dependent protein kinase kinase 2, beta".
  3. 3.0 3.1 Anderson KA, Ribar TJ, Lin F, Noeldner PK, Green MF, Muehlbauer MJ, Witters LA, Kemp BE, Means AR (May 2008). "Hypothalamic CaMKK2 contributes to the regulation of energy balance". Cell Metab. 7 (5): 377–88. doi:10.1016/j.cmet.2008.02.011. PMID 18460329.
  4. Sánchez-Blázquez P, Rodríguez-Muñoz M, Montero C, de la Torre-Madrid E, Garzón J (February 2008). "Calcium/calmodulin-dependent protein kinase II supports morphine antinociceptive tolerance by phosphorylation of glycosylated phosducin-like protein". Neuropharmacology. 54 (2): 319–30. doi:10.1016/j.neuropharm.2007.10.002. PMID 18006024.
  5. Chen Y, Jiang Y, Yue W, Zhou Y, Lu L, Ma L (October 2008). "Chronic, but not acute morphine treatment, up-regulates alpha-Ca2+/calmodulin dependent protein kinase II gene expression in rat brain". Neurochemical Research. 33 (10): 2092–8. doi:10.1007/s11064-008-9690-0. PMID 18408996.
  6. Chen Y, Yang C, Wang ZJ (January 2010). "Ca2+/calmodulin-dependent protein kinase II alpha is required for the initiation and maintenance of opioid-induced hyperalgesia". Journal of Neuroscience. 30 (1): 38–46. doi:10.1523/JNEUROSCI.4346-09.2010. PMC 2821163. PMID 20053885.
  7. Hsu LS, Chen GD, Lee LS, Chi CW, Cheng JF, Chen JY (August 2001). "Human Ca2+/calmodulin-dependent protein kinase kinase beta gene encodes multiple isoforms that display distinct kinase activity". J. Biol. Chem. 276 (33): 31113–23. doi:10.1074/jbc.M011720200. PMID 11395482.

External links

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.