Keratin K20 (CAMK2A) Recombinant Protein

The product of this gene belongs to the serine/threonine protein kinases family, and to the Ca(2+)/calmodulin-dependent protein kinases subfamily. Calcium signaling is crucial for several aspects of plasticity at glutamatergic synapses. This calcium calmodulin-dependent protein kinase is composed of four different chains: alpha, beta, gamma, and delta. The alpha chain encoded by this gene is required for hippocampal long-term potentiation (LTP) and spatial learning. In addition to its calcium-calmodulin (CaM)-dependent activity, this protein can undergo autophosphorylation, resulting in CaM-independent activity. Two transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Nov 2008]

CAMK2A: a protein kinase of the CAMK2 family. A prominent kinase in the central nervous system that may function in long-term potentiation and neurotransmitter release. Member of the NMDAR signaling complex in excitatory synapses that may regulate NMDAR-dependent potentiation of the AMPAR and synaptic plasticity. The holoenzyme is composed of four different chains: alpha, beta, gamma, and delta. The different chains assemble into homo- or heteromultimeric holoenzymes composed of 8 to 12 subunits. May interact with BAALC, MPDZ, SYN1 and synGAP. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Protein kinase, Ser/Thr (non-receptor); Protein kinase, CAMK; Kinase, protein; EC 2.7.11.17; CAMK group; CAMK2 family

Chromosomal Location of Human Ortholog: 5q32

Cellular Component: nucleoplasm; presynaptic membrane; mitochondrion; plasma membrane; cell junction; cytosol; nucleus

Molecular Function: calmodulin binding; protein serine/threonine kinase activity; glutamate receptor binding; protein binding; protein homodimerization activity; calmodulin-dependent protein kinase activity; kinase activity; ATP binding

Biological Process: synaptic transmission; peptidyl-serine phosphorylation; calcium ion transport; protein amino acid autophosphorylation; cytokine and chemokine mediated signaling pathway; regulation of neurotransmitter secretion; positive regulation of calcium ion transport; protein amino acid phosphorylation; regulation of neuronal synaptic plasticity; G1/S transition of mitotic cell cycle; activation of NF-kappaB transcription factor