AKAP3

A kinase (PRKA) anchor protein 3
Identifiers
Symbols AKAP3; AKAP110; CT82; FSP95; PRKA3; SOB1
External IDs OMIM604689 MGI1341149 HomoloGene4688 GeneCards: AKAP3 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 10566 11642
Ensembl ENSG00000111254 ENSMUSG00000030344
UniProt O75969 Q497M9
RefSeq (mRNA) NM_006422 NM_009650.2
RefSeq (protein) NP_006413 NP_033780.2
Location (UCSC) Chr 12:
4.72 – 4.76 Mb
Chr 6:
126.8 – 126.82 Mb
PubMed search [1] [2]

A-kinase anchor protein 3 is an enzyme that in humans is encoded by the AKAP3 gene.[1][2][3]

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, and is expressed in testis only. The encoded protein contains an RII-binding domain, and is predicted to participate in protein-protein interactions with the R-subunit of the PKA. This protein is localized to the ribs of the fibrous sheath in the principal piece of the sperm tail. It may function as a regulator of both motility- and head-associated functions such as capacitation and the acrosome reaction.[3]

Interactions

AKAP3 has been shown to interact with GNA13,[4] AKAP4[5] and PRKAR2A.[2][6]

References

  1. ^ Lefevre A, Duquenne C, Rousseau-Merck MF, Rogier E, Finaz C (Jun 1999). "Cloning and characterization of SOB1, a new testis-specific cDNA encoding a human sperm protein probably involved in oocyte recognition". Biochem Biophys Res Commun 259 (1): 60–6. doi:10.1006/bbrc.1999.0728. PMID 10334916. 
  2. ^ a b Vijayaraghavan S, Liberty GA, Mohan J, Winfrey VP, Olson GE, Carr DW (Jul 1999). "Isolation and molecular characterization of AKAP110, a novel, sperm-specific protein kinase A-anchoring protein". Mol Endocrinol 13 (5): 705–17. doi:10.1210/me.13.5.705. PMID 10319321. 
  3. ^ a b "Entrez Gene: AKAP3 A kinase (PRKA) anchor protein 3". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10566. 
  4. ^ Niu, J; Vaiskunaite R, Suzuki N, Kozasa T, Carr D W, Dulin N, Voyno-Yasenetskaya T A (Oct. 2001). "Interaction of heterotrimeric G13 protein with an A-kinase-anchoring protein 110 (AKAP110) mediates cAMP-independent PKA activation". Curr. Biol. (England) 11 (21): 1686–90. doi:10.1016/S0960-9822(01)00530-9. ISSN 0960-9822. PMID 11696326. 
  5. ^ Brown, Paula R; Miki Kiyoshi, Harper Deborah B, Eddy Edward M (Jun. 2003). "A-kinase anchoring protein 4 binding proteins in the fibrous sheath of the sperm flagellum". Biol. Reprod. (United States) 68 (6): 2241–8. doi:10.1095/biolreprod.102.013466. ISSN 0006-3363. PMID 12606363. 
  6. ^ Carr, D W; Fujita A, Stentz C L, Liberty G A, Olson G E, Narumiya S (May. 2001). "Identification of sperm-specific proteins that interact with A-kinase anchoring proteins in a manner similar to the type II regulatory subunit of PKA". J. Biol. Chem. (United States) 276 (20): 17332–8. doi:10.1074/jbc.M011252200. ISSN 0021-9258. PMID 11278869. 

Further reading