AKAP9

A-kinase anchor protein 9 is a protein that in humans is encoded by the AKAP9 gene. AKAP9 is also known as Centrosome- and Golgi-localized protein kinase N-associated protein (CG-NAP) or AKAP350 or AKAP450

AKAP9
Identifiers
Aliases	AKAP9, AKAP-9, AKAP350, AKAP450, CG-NAP, HYPERION, LQT11, MU-RMS-40.16A, PPP1R45, PRKA9, YOTIAO, A-kinase anchoring protein 9
External IDs	OMIM: 604001; HomoloGene: 17517; GeneCards: AKAP9; OMA:AKAP9 - orthologs
Gene location (Human) Chr. Chromosome 7 (human) Band 7q21.2 Start 91,940,840 bp End 92,110,673 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in jejunal mucosa bronchial epithelial cell sural nerve Achilles tendon Skeletal muscle tissue of rectus abdominis epithelium of colon gastric mucosa right uterine tube Skeletal muscle tissue of biceps brachii mucosa of paranasal sinus n/a More reference expression data BioGPS More reference expression data
Gene ontology Molecular function transmembrane transporter binding potassium channel regulator activity protein binding molecular adaptor activity signaling receptor binding protein kinase A regulatory subunit binding DNA binding kinase activity Cellular component cytoplasm cytosol centrosome Golgi apparatus intracellular membrane-bounded organelle voltage-gated potassium channel complex cis-Golgi network microtubule organizing center Golgi stack cytoskeleton dendritic branch synaptic membrane soma glutamatergic synapse extrinsic component of postsynaptic density membrane Biological process positive regulation of peptidyl-serine phosphorylation MAPK cascade G2/M transition of mitotic cell cycle regulation of membrane repolarization regulation of heart rate by cardiac conduction cellular response to cAMP signal transduction positive regulation of potassium ion transmembrane transporter activity microtubule nucleation regulation of ventricular cardiac muscle cell membrane repolarization chemical synaptic transmission response to electrical stimulus negative regulation of adenylate cyclase activity ciliary basal body-plasma membrane docking regulation of cardiac muscle cell action potential involved in regulation of contraction maintenance of centrosome location regulation of G2/M transition of mitotic cell cycle regulation of Golgi organization positive regulation of microtubule polymerization regulation of postsynaptic neurotransmitter receptor activity cardiac conduction phosphorylation Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 10142 n/a Ensembl ENSG00000127914 n/a UniProt Q99996 Q6PJH3 n/a RefSeq (mRNA) NM_005751 NM_147166 NM_147171 NM_147185 NM_001379277 n/a RefSeq (protein) NP_005742 NP_671714 NP_001366206 NP_005742.4 NP_671714.1 n/a Location (UCSC) Chr 7: 91.94 – 92.11 Mb n/a PubMed search n/a
Wikidata
View/Edit Human

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. Alternate splicing of this gene results in many isoforms that localize to the centrosome and the Golgi apparatus, and interact with numerous signaling proteins from multiple signal transduction pathways. These signaling proteins include type II protein kinase A, serine/threonine kinase protein kinase N, protein phosphatase 1, protein phosphatase 2a, protein kinase C-epsilon and phosphodiesterase 4D3.

Interactions

AKAP9 has been shown to interact with:

• CALM2,
• CALM1,
• FNBP1,
• KvLQT1
• PRKAR2A,
• PKN1, and
• TRIP10.

Further reading

• Nagase T, Ishikawa K, Suyama M, Kikuno R, Miyajima N, Tanaka A, Kotani H, Nomura N, Ohara O (1999). "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". DNA Res. 5 (5): 277–86. doi:10.1093/dnares/5.5.277. PMID 9872452.
• Schmidt PH, Dransfield DT, Claudio JO, Hawley RG, Trotter KW, Milgram SL, Goldenring JR (1999). "AKAP350, a multiply spliced protein kinase A-anchoring protein associated with centrosomes". J. Biol. Chem. 274 (5): 3055–66. doi:10.1074/jbc.274.5.3055. PMID 9915845.
• Witczak O, Skålhegg BS, Keryer G, Bornens M, Taskén K, Jahnsen T, Orstavik S (1999). "Cloning and characterization of a cDNA encoding an A-kinase anchoring protein located in the centrosome, AKAP450". EMBO J. 18 (7): 1858–68. doi:10.1093/emboj/18.7.1858. PMC 1171271. PMID 10202149.
• Takahashi M, Shibata H, Shimakawa M, Miyamoto M, Mukai H, Ono Y (1999). "Characterization of a novel giant scaffolding protein, CG-NAP, that anchors multiple signaling enzymes to centrosome and the golgi apparatus". J. Biol. Chem. 274 (24): 17267–74. doi:10.1074/jbc.274.24.17267. PMID 10358086.
• Husi H, Ward MA, Choudhary JS, Blackstock WP, Grant SG (2000). "Proteomic analysis of NMDA receptor-adhesion protein signaling complexes". Nat. Neurosci. 3 (7): 661–9. doi:10.1038/76615. hdl:1842/742. PMID 10862698. S2CID 14392630.
• Takahashi M, Mukai H, Oishi K, Isagawa T, Ono Y (2000). "Association of immature hypophosphorylated protein kinase cepsilon with an anchoring protein CG-NAP". J. Biol. Chem. 275 (44): 34592–6. doi:10.1074/jbc.M005285200. PMID 10945988.
• Marx SO, Kurokawa J, Reiken S, Motoike H, D'Armiento J, Marks AR, Kass RS (2002). "Requirement of a macromolecular signaling complex for beta adrenergic receptor modulation of the KCNQ1-KCNE1 potassium channel". Science. 295 (5554): 496–9. Bibcode:2002Sci...295..496M. doi:10.1126/science.1066843. PMID 11799244. S2CID 6153394.
• Steadman BT, Schmidt PH, Shanks RA, Lapierre LA, Goldenring JR (2002). "Transforming acidic coiled-coil-containing protein 4 interacts with centrosomal AKAP350 and the mitotic spindle apparatus". J. Biol. Chem. 277 (33): 30165–76. doi:10.1074/jbc.M201914200. PMID 12015314.
• Bray JD, Chennathukuzhi VM, Hecht NB (2002). "Identification and characterization of cDNAs encoding four novel proteins that interact with translin associated factor-X". Genomics. 79 (6): 799–808. doi:10.1006/geno.2002.6779. PMID 12036294.
• Shanks RA, Larocca MC, Berryman M, Edwards JC, Urushidani T, Navarre J, Goldenring JR (2002). "AKAP350 at the Golgi apparatus. II. Association of AKAP350 with a novel chloride intracellular channel (CLIC) family member". J. Biol. Chem. 277 (43): 40973–80. doi:10.1074/jbc.M112277200. PMID 12163479.
• Takahashi M, Yamagiwa A, Nishimura T, Mukai H, Ono Y (2003). "Centrosomal Proteins CG-NAP and Kendrin Provide Microtubule Nucleation Sites by Anchoring γ-Tubulin Ring Complex". Mol. Biol. Cell. 13 (9): 3235–45. doi:10.1091/mbc.E02-02-0112. PMC 124155. PMID 12221128.
• Sillibourne JE, Milne DM, Takahashi M, Ono Y, Meek DW (2002). "Centrosomal anchoring of the protein kinase CK1delta mediated by attachment to the large, coiled-coil scaffolding protein CG-NAP/AKAP450". J. Mol. Biol. 322 (4): 785–97. doi:10.1016/S0022-2836(02)00857-4. PMID 12270714.
• Tu H, Tang TS, Wang Z, Bezprozvanny I (2004). "Association of type 1 inositol 1,4,5-trisphosphate receptor with AKAP9 (Yotiao) and protein kinase A". J. Biol. Chem. 279 (18): 19375–82. doi:10.1074/jbc.M313476200. PMID 14982933.

External links

• AKAP9 human gene location in the UCSC Genome Browser.
• AKAP9 human gene details in the UCSC Genome Browser.

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