Casein kinase II subunit alpha is an enzyme that in humans is encoded by the CSNK2A1gene.[5][6]
Casein kinase II is a serine/threonine protein kinase that phosphorylates acidic proteins such as casein. The kinase exists as a tetramer and is composed of an alpha, an alpha-prime, and two beta subunits. The alpha subunits contain the catalytic activity while the beta subunits undergo autophosphorylation. The protein encoded by this gene represents the alpha subunit. While this gene is found on chromosome 20, a related transcribed pseudogene is found on chromosome 11. Three transcript variants encoding two different proteins have been found for this gene.[7]
Interactions
Casein kinase 2, alpha 1 has been shown to interact with:
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Lozeman FJ, Litchfield DW, Piening C, Takio K, Walsh KA, Krebs EG (January 1991). "Isolation and characterization of human cDNA clones encoding the alpha and the alpha' subunits of casein kinase II". Biochemistry. 29 (36): 8436–47. doi:10.1021/bi00488a034. PMID2174700.
^Guerra B, Issinger OG, Wang JY (August 2003). "Modulation of human checkpoint kinase Chk1 by the regulatory beta-subunit of protein kinase CK2". Oncogene. 22 (32): 4933–42. doi:10.1038/sj.onc.1206721. PMID12902976. S2CID13054364.
^Marin O, Meggio F, Sarno S, Pinna LA (June 1997). "Physical dissection of the structural elements responsible for regulatory properties and intersubunit interactions of protein kinase CK2 beta-subunit". Biochemistry. 36 (23): 7192–8. doi:10.1021/bi962885q. PMID9188720.
^Kusk M, Ahmed R, Thomsen B, Bendixen C, Issinger OG, Boldyreff B (January 1999). "Interactions of protein kinase CK2beta subunit within the holoenzyme and with other proteins". Mol. Cell. Biochem. 191 (1–2): 51–8. doi:10.1023/A:1006840613986. PMID10094392. S2CID257329.
^Allende-Vega N, McKenzie L, Meek D (September 2008). "Transcription factor TAFII250 phosphorylates the acidic domain of Mdm2 through recruitment of protein kinase CK2". Mol. Cell. Biochem. 316 (1–2): 99–106. doi:10.1007/s11010-008-9816-3. PMID18548200. S2CID25685775.