UniProt functional annotation for P12369



	UniProt functional annotation for P12369

UniProt code: P12369.

Organism: Rattus norvegicus (Rat).

Taxonomy: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus.

Function: Regulatory subunit of the cAMP-dependent protein kinases involved in cAMP signaling in cells. Type II regulatory chains mediate membrane association by binding to anchoring proteins, including the MAP2 kinase.

Subunit: The inactive form of the enzyme is composed of two regulatory chains and two catalytic chains. Activation by cAMP produces two active catalytic monomers and a regulatory dimer that binds four cAMP molecules. Interacts with the phosphorylated form of PJA2 (By similarity). Forms a complex composed of PRKAR2B, GSK3B and GSKIP through GSKIP interaction; facilitates PKA-induced phosphorylation and regulates GSK3B activity (By similarity). {ECO:0000250, ECO:0000250|UniProtKB:P31323}.

Subcellular location: Cytoplasm {ECO:0000250}. Cell membrane {ECO:0000250}. Note=Colocalizes with PJA2 in the cytoplasm and at the cell membrane. {ECO:0000250}.

Tissue specificity: Four types of regulatory chains are found: I-alpha, I-beta, II-alpha, and II-beta. Their expression varies among tissues and is in some cases constitutive and in others inducible. Brain. Present in a few pyramidal neurons and mostly in mossy fibers. Colocalizes with PJA2 in dentate granule cells and at postsynaptic sites of primary hippocampal neurons. {ECO:0000269|PubMed:21423175}.

Ptm: Phosphorylated by the activated catalytic chain.

Similarity: Belongs to the cAMP-dependent kinase regulatory chain family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.


Organism:		Rattus norvegicus (Rat).
Taxonomy:		Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Rattus.



Function:		Regulatory subunit of the cAMP-dependent protein kinases involved in cAMP signaling in cells. Type II regulatory chains mediate membrane association by binding to anchoring proteins, including the MAP2 kinase.


Subunit:		The inactive form of the enzyme is composed of two regulatory chains and two catalytic chains. Activation by cAMP produces two active catalytic monomers and a regulatory dimer that binds four cAMP molecules. Interacts with the phosphorylated form of PJA2 (By similarity). Forms a complex composed of PRKAR2B, GSK3B and GSKIP through GSKIP interaction; facilitates PKA-induced phosphorylation and regulates GSK3B activity (By similarity). {ECO:0000250, ECO:0000250\|UniProtKB:P31323}.
Subcellular location:		Cytoplasm {ECO:0000250}. Cell membrane {ECO:0000250}. Note=Colocalizes with PJA2 in the cytoplasm and at the cell membrane. {ECO:0000250}.
Tissue specificity:		Four types of regulatory chains are found: I-alpha, I-beta, II-alpha, and II-beta. Their expression varies among tissues and is in some cases constitutive and in others inducible. Brain. Present in a few pyramidal neurons and mostly in mossy fibers. Colocalizes with PJA2 in dentate granule cells and at postsynaptic sites of primary hippocampal neurons. {ECO:0000269\|PubMed:21423175}.
Ptm:		Phosphorylated by the activated catalytic chain.
Similarity:		Belongs to the cAMP-dependent kinase regulatory chain family. {ECO:0000305}.