AKAP12

A kinase (PRKA) anchor protein 12
Identifiers
Symbols	AKAP12 ; AKAP250; SSeCKS
External IDs	OMIM: 604698 MGI: 1932576 HomoloGene: 3740 GeneCards: AKAP12 Gene
Gene ontology Molecular function • protein binding • adenylate cyclase binding • protein kinase A binding Cellular component • cytoplasm • cytoskeleton • plasma membrane • focal adhesion • cell cortex Biological process • protein targeting • G-protein coupled receptor signaling pathway • positive regulation of protein kinase A signaling • positive regulation of cAMP biosynthetic process • regulation of protein kinase C signaling Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	9590	83397
Ensembl	ENSG00000131016	ENSMUSG00000038587
UniProt	Q02952	Q9WTQ5
RefSeq (mRNA)	NM_005100	NM_031185
RefSeq (protein)	NP_005091	NP_112462
Location (UCSC)	Chr 6: 151.24 – 151.36 Mb	Chr 10: 4.27 – 4.36 Mb
PubMed search

A-kinase anchor protein 12 is an enzyme that in humans is encoded by the AKAP12 gene.^[1][2]

Function

The A-kinase anchor proteins (AKAPs) are a group of structurally diverse proteins, which have the common function of binding to the regulatory subunit of protein kinase A (PKA) and confining the holoenzyme to discrete locations within the cell. This gene encodes a member of the AKAP family. The encoded protein is expressed in endothelial cells, cultured fibroblasts, and osteosarcoma cells. It associates with protein kinase A and C and phosphatase, and serves as a scaffold protein in signal transduction. This protein and RII PKA colocalize at the cell periphery. This protein is a cell growth-related protein. Antibodies to this protein can be produced by patients with myasthenia gravis. Alternative splicing of this gene results in two transcript variants encoding different isoforms.^[2]

Interactions

AKAP12 has been shown to interact with Beta-2 adrenergic receptor.^[3][4]

References

1. Nauert JB, Klauck TM, Langeberg LK, Scott JD (Mar 1997). "Gravin, an autoantigen recognized by serum from myasthenia gravis patients, is a kinase scaffold protein". Curr. Biol. 7 (1): 52–62. doi:10.1016/S0960-9822(06)00027-3. PMID 9000000.
2. "Entrez Gene: AKAP12 A kinase (PRKA) anchor protein (gravin) 12".
3. Fan G, Shumay E, Wang H, Malbon CC (Jun 2001). "The scaffold protein gravin (cAMP-dependent protein kinase-anchoring protein 250) binds the beta 2-adrenergic receptor via the receptor cytoplasmic Arg-329 to Leu-413 domain and provides a mobile scaffold during desensitization". J. Biol. Chem. 276 (26): 24005–14. doi:10.1074/jbc.M011199200. PMID 11309381.
4. Shih M, Lin F, Scott JD, Wang HY, Malbon CC (Jan 1999). "Dynamic complexes of beta2-adrenergic receptors with protein kinases and phosphatases and the role of gravin". J. Biol. Chem. 274 (3): 1588–95. doi:10.1074/jbc.274.3.1588. PMID 9880537.

Further reading

• Lester LB, Scott JD (1997). "Anchoring and scaffold proteins for kinases and phosphatases". Recent Prog. Horm. Res. 52: 409–29; discussion 429–30. PMID 9238861.
• Michel JJ, Scott JD (2002). "AKAP mediated signal transduction". Annu. Rev. Pharmacol. Toxicol. 42: 235–57. doi:10.1146/annurev.pharmtox.42.083101.135801. PMID 11807172.
• Yildirim M, Paydas S, Tanriverdi K, Seydaoglu G, Disel U, Yavuz S (2007). "Gravin gene expression in acute leukaemias: clinical importance and review of the literature". Leuk. Lymphoma 48 (6): 1167–72. doi:10.1080/10428190701377055. PMID 17577780.
• Gordon T, Grove B, Loftus JC, O'Toole T, McMillan R, Lindstrom J, Ginsberg MH (1992). "Molecular cloning and preliminary characterization of a novel cytoplasmic antigen recognized by myasthenia gravis sera". J. Clin. Invest. 90 (3): 992–9. doi:10.1172/JCI115976. PMC 329955. PMID 1522245.
• Sato N, Kokame K, Shimokado K, Kato H, Miyata T (1998). "Changes of gene expression by lysophosphatidylcholine in vascular endothelial cells: 12 up-regulated distinct genes including 5 cell growth-related, 3 thrombosis-related, and 4 others". J. Biochem. 123 (6): 1119–26. doi:10.1093/oxfordjournals.jbchem.a022051. PMID 9604001.
• Shih M, Lin F, Scott JD, Wang HY, Malbon CC (1999). "Dynamic complexes of beta2-adrenergic receptors with protein kinases and phosphatases and the role of gravin". J. Biol. Chem. 274 (3): 1588–95. doi:10.1074/jbc.274.3.1588. PMID 9880537.
• Lin F, Wang Hy, Malbon CC (2000). "Gravin-mediated formation of signaling complexes in beta 2-adrenergic receptor desensitization and resensitization". J. Biol. Chem. 275 (25): 19025–34. doi:10.1074/jbc.275.25.19025. PMID 10858453.
• Fan G, Shumay E, Wang H, Malbon CC (2001). "The scaffold protein gravin (cAMP-dependent protein kinase-anchoring protein 250) binds the beta 2-adrenergic receptor via the receptor cytoplasmic Arg-329 to Leu-413 domain and provides a mobile scaffold during desensitization". J. Biol. Chem. 276 (26): 24005–14. doi:10.1074/jbc.M011199200. PMID 11309381.
• Grove BD, Bruchey AK (2001). "Intracellular distribution of gravin, a PKA and PKC binding protein, in vascular endothelial cells". J. Vasc. Res. 38 (2): 163–75. doi:10.1159/000051043. PMID 11316952.
• Sasaki H, Kunimatsu M, Fujii Y, Yamakawa Y, Fukai I, Kiriyama M, Nonaka M, Sasaki M (2001). "Autoantibody to gravin is expressed more strongly in younger and nonthymomatous patients with myasthenia gravis". Surg. Today 31 (11): 1036–7. doi:10.1007/s005950170020. PMID 11766078.
• Piontek J, Brandt R (2003). "Differential and regulated binding of cAMP-dependent protein kinase and protein kinase C isoenzymes to gravin in human model neurons: Evidence that gravin provides a dynamic platform for the localization for kinases during neuronal development". J. Biol. Chem. 278 (40): 38970–9. doi:10.1074/jbc.M306749200. PMID 12857743.
• Tao J, Wang HY, Malbon CC (2003). "Protein kinase A regulates AKAP250 (gravin) scaffold binding to the beta2-adrenergic receptor". EMBO J. 22 (24): 6419–29. doi:10.1093/emboj/cdg628. PMC 291823. PMID 14657015.
• Choi MC, Jong HS, Kim TY, Song SH, Lee DS, Lee JW, Kim TY, Kim NK, Bang YJ (2004). "AKAP12/Gravin is inactivated by epigenetic mechanism in human gastric carcinoma and shows growth suppressor activity". Oncogene 23 (42): 7095–103. doi:10.1038/sj.onc.1207932. PMID 15258566.
• Ballif BA, Villén J, Beausoleil SA, Schwartz D, Gygi SP (2004). "Phosphoproteomic analysis of the developing mouse brain". Mol. Cell Proteomics 3 (11): 1093–101. doi:10.1074/mcp.M400085-MCP200. PMID 15345747.
• Streb JW, Miano JM (2005). "AKAP12alpha, an atypical serum response factor-dependent target gene". J. Biol. Chem. 280 (6): 4125–34. doi:10.1074/jbc.M412466200. PMID 15590635.
• Streb JW, Miano JM (2005). "Cross-species sequence analysis reveals multiple charged residue-rich domains that regulate nuclear/cytoplasmic partitioning and membrane localization of a kinase anchoring protein 12 (SSeCKS/Gravin)". J. Biol. Chem. 280 (30): 28007–14. doi:10.1074/jbc.M414017200. PMID 15923193.