PRKAR2B

PRKAR2B
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 3TNP, 3TNQ, 4WBB, 4X6Q
Identifiers
Aliases	PRKAR2B, PRKAR2, RII-BETA, protein kinase cAMP-dependent type II regulatory subunit beta
External IDs	OMIM: 176912; MGI: 97760; HomoloGene: 37666; GeneCards: PRKAR2B; OMA:PRKAR2B - orthologs
Gene location (Human) Chr. Chromosome 7 (human) Band 7q22.3 Start 107,044,705 bp End 107,161,811 bp
Gene location (Mouse) Chr. Chromosome 12 (mouse) Band 12|12 A3 Start 32,008,475 bp End 32,111,295 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in monocyte gastric mucosa subcutaneous adipose tissue superior frontal gyrus right adrenal cortex left adrenal cortex ganglionic eminence primary visual cortex prefrontal cortex Brodmann area 9 Top expressed in brown adipose tissue pineal gland subcutaneous adipose tissue olfactory tubercle white adipose tissue cumulus cell blood lateral septal nucleus mammary gland Gonadal ridge More reference expression data BioGPS More reference expression data
Gene ontology Molecular function nucleotide binding protein domain specific binding protein kinase A catalytic subunit binding cAMP binding cAMP-dependent protein kinase regulator activity cAMP-dependent protein kinase inhibitor activity protein kinase binding ubiquitin protein ligase binding protein binding 3',5'-cyclic-GMP phosphodiesterase activity kinase activity Cellular component cytoplasm cytosol centrosome membrane plasma membrane dendritic spine ciliary base dendritic shaft soma dendrite perinuclear region of cytoplasm mitochondrial inner membrane membrane raft cAMP-dependent protein kinase complex extracellular exosome postsynapse glutamatergic synapse Biological process regulation of protein phosphorylation activation of protein kinase A activity intracellular signal transduction response to antipsychotic drug cellular response to glucagon stimulus blood coagulation learning negative regulation of cAMP-dependent protein kinase activity fatty acid metabolic process G2/M transition of mitotic cell cycle response to clozapine renal water homeostasis regulation of protein kinase activity ciliary basal body-plasma membrane docking regulation of G2/M transition of mitotic cell cycle cGMP-mediated signaling modulation of chemical synaptic transmission phosphorylation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 5577 19088 Ensembl ENSG00000005249 ENSG00000284096 ENSMUSG00000002997 UniProt P31323 P31324 RefSeq (mRNA) NM_002736 NM_011158 NM_001364407 NM_001364408 RefSeq (protein) NP_002727 NP_002727.2 NP_035288 NP_001351336 NP_001351337 Location (UCSC) Chr 7: 107.04 – 107.16 Mb Chr 12: 32.01 – 32.11 Mb PubMed search
Wikidata
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cAMP-dependent protein kinase type II-beta regulatory subunit is an enzyme that in humans is encoded by the PRKAR2B gene.

Function

cAMP is a signaling molecule important for a variety of cellular functions. cAMP exerts its effects by activating the cAMP-dependent protein kinase (PKA), which transduces the signal through phosphorylation of different target proteins. The inactive holoenzyme of PKA is a tetramer composed of two regulatory and two catalytic subunits. cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP and two free monomeric catalytic subunits. Four different regulatory subunits and three catalytic subunits of PKA have been identified in humans. The protein encoded by this gene is one of the regulatory subunits. This subunit can be phosphorylated by the activated catalytic subunit. This subunit has been shown to interact with and suppress the transcriptional activity of the cAMP responsive element binding protein 1 (CREB1) in activated T cells. Knockout studies in mice suggest that this subunit may play an important role in regulating energy balance and adiposity. The studies also suggest that this subunit may mediate the gene induction and cataleptic behavior induced by haloperidol.

Interactions

PRKAR2B has been shown to interact with AKAP11 in an advanced Stage.

Further reading

• Harrich D, McMillan N, Munoz L, Apolloni A, Meredith L (Dec 2006). "Will diverse Tat interactions lead to novel antiretroviral drug targets?". Current Drug Targets. 7 (12): 1595–606. doi:10.2174/138945006779025338. PMID 17168834.
• Luo Z, Singh IS, Fujihira T, Erlichman J (Dec 1992). "Characterization of a minimal promoter element required for transcription of the mouse type II beta regulatory subunit (RII beta) of cAMP-dependent protein kinase". The Journal of Biological Chemistry. 267 (34): 24738–47. PMID 1332964.
• Rios RM, Celati C, Lohmann SM, Bornens M, Keryer G (May 1992). "Identification of a high affinity binding protein for the regulatory subunit RII beta of cAMP-dependent protein kinase in Golgi enriched membranes of human lymphoblasts". The EMBO Journal. 11 (5): 1723–31. PMC 556630. PMID 1582408.
• Tortora G, Clair T, Cho-Chung YS (Jan 1990). "An antisense oligodeoxynucleotide targeted against the type II beta regulatory subunit mRNA of protein kinase inhibits cAMP-induced differentiation in HL-60 leukemia cells without affecting phorbol ester effects". Proceedings of the National Academy of Sciences of the United States of America. 87 (2): 705–8. doi:10.1073/pnas.87.2.705. PMC 53334. PMID 1689049.
• Hofmann B, Nishanian P, Baldwin RL, Insixiengmay P, Nel A, Fahey JL (Dec 1990). "HIV inhibits the early steps of lymphocyte activation, including initiation of inositol phospholipid metabolism". Journal of Immunology. 145 (11): 3699–705. PMID 1978848.
• Levy FO, Oyen O, Sandberg M, Taskén K, Eskild W, Hansson V, Jahnsen T (Dec 1988). "Molecular cloning, complementary deoxyribonucleic acid structure and predicted full-length amino acid sequence of the hormone-inducible regulatory subunit of 3'-5'-cyclic adenosine monophosphate-dependent protein kinase from human testis". Molecular Endocrinology. 2 (12): 1364–73. doi:10.1210/mend-2-12-1364. PMID 2851102.
• Scambler P, Oyen O, Wainwright B, Farrall M, Law HY, Estivill X, Sandberg M, Williamson R, Jahnsen T (Nov 1987). "Exclusion of catalytic and regulatory subunits of cAMP-dependent protein kinase as candidate genes for the defect causing cystic fibrosis". American Journal of Human Genetics. 41 (5): 925–32. PMC 1684338. PMID 3479018.
• Wainwright B, Lench N, Davies K, Scambler P, Kruyer H, Williamson R, Jahnsen T, Farrall M (1988). "A human regulatory subunit of type II cAMP-dependent protein kinase localized by its linkage relationship to several cloned chromosome 7q markers". Cytogenetics and Cell Genetics. 45 (3–4): 237–9. doi:10.1159/000132461. PMID 3691190.
• Budillon A, Cereseto A, Kondrashin A, Nesterova M, Merlo G, Clair T, Cho-Chung YS (Nov 1995). "Point mutation of the autophosphorylation site or in the nuclear location signal causes protein kinase A RII beta regulatory subunit to lose its ability to revert transformed fibroblasts". Proceedings of the National Academy of Sciences of the United States of America. 92 (23): 10634–8. doi:10.1073/pnas.92.23.10634. PMC 40666. PMID 7479855.
• Hofmann B, Nishanian P, Nguyen T, Insixiengmay P, Fahey JL (Jul 1993). "Human immunodeficiency virus proteins induce the inhibitory cAMP/protein kinase A pathway in normal lymphocytes". Proceedings of the National Academy of Sciences of the United States of America. 90 (14): 6676–80. doi:10.1073/pnas.90.14.6676. PMC 46995. PMID 7688126.
• Berg JP, Ree AH, Sandvik JA, Taskén K, Landmark BF, Torjesen PA, Haug E (Dec 1994). "1,25-dihydroxyvitamin D3 alters the effect of cAMP in thyroid cells by increasing the regulatory subunit type II beta of the cAMP-dependent protein kinase". The Journal of Biological Chemistry. 269 (51): 32233–8. PMID 7798223.
• Li Y, Rubin CS (Jan 1995). "Mutagenesis of the regulatory subunit (RII beta) of cAMP-dependent protein kinase II beta reveals hydrophobic amino acids that are essential for RII beta dimerization and/or anchoring RII beta to the cytoskeleton". The Journal of Biological Chemistry. 270 (4): 1935–44. doi:10.1074/jbc.270.4.1935. PMID 7829531.
• Hofmann B, Nishanian P, Fan J, Nguyen T, Fahey JL (Jul 1994). "HIV Gag p17 protein impairs proliferation of normal lymphocytes in vitro". AIDS. 8 (7): 1016–7. doi:10.1097/00002030-199407000-00025. PMID 7946090.
• Glantz SB, Li Y, Rubin CS (Jun 1993). "Characterization of distinct tethering and intracellular targeting domains in AKAP75, a protein that links cAMP-dependent protein kinase II beta to the cytoskeleton". The Journal of Biological Chemistry. 268 (17): 12796–804. PMID 8509414.
• Keryer G, Luo Z, Cavadore JC, Erlichman J, Bornens M (Jun 1993). "Phosphorylation of the regulatory subunit of type II beta cAMP-dependent protein kinase by cyclin B/p34cdc2 kinase impairs its binding to microtubule-associated protein 2". Proceedings of the National Academy of Sciences of the United States of America. 90 (12): 5418–22. doi:10.1073/pnas.90.12.5418. PMC 46731. PMID 8516283.
• Swingler S, Gallay P, Camaur D, Song J, Abo A, Trono D (Jun 1997). "The Nef protein of human immunodeficiency virus type 1 enhances serine phosphorylation of the viral matrix". Journal of Virology. 71 (6): 4372–7. PMC 191654. PMID 9151826.
• Chen P, Mayne M, Power C, Nath A (Sep 1997). "The Tat protein of HIV-1 induces tumor necrosis factor-alpha production. Implications for HIV-1-associated neurological diseases". The Journal of Biological Chemistry. 272 (36): 22385–8. doi:10.1074/jbc.272.36.22385. PMID 9278385.
• Huang LJ, Durick K, Weiner JA, Chun J, Taylor SS (Oct 1997). "D-AKAP2, a novel protein kinase A anchoring protein with a putative RGS domain". Proceedings of the National Academy of Sciences of the United States of America. 94 (21): 11184–9. doi:10.1073/pnas.94.21.11184. PMC 23409. PMID 9326583.
• Zidovetzki R, Wang JL, Chen P, Jeyaseelan R, Hofman F (Jul 1998). "Human immunodeficiency virus Tat protein induces interleukin 6 mRNA expression in human brain endothelial cells via protein kinase C- and cAMP-dependent protein kinase pathways". AIDS Research and Human Retroviruses. 14 (10): 825–33. doi:10.1089/aid.1998.14.825. PMID 9671211.