PRKAR2A - protein kinase cAMP-dependent type II regulatory subunit alpha Gene
Also Known as PKR2; PRKAR2
Species: Homo sapiens
About PRKAR2A
This gene has 7 transcripts (splice variants), 283 orthologues and 4 paralogues. Ubiquitous expression in testis (RPKM 11.3), colon (RPKM 10.8) and 25 other tissues.
Summary
cAMP is a signaling molecule important for a variety of cellular functions. cAMP exerts its effects by activating the cAMP-dependent protein kinase, which transduces the signal through phosphorylation of different target proteins. The inactive kinase holoenzyme is a tetramer composed of two regulatory and two catalytic subunits. cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP and two free monomeric catalytic subunits. Four different regulatory subunits and three catalytic subunits have been identified in humans. The protein encoded by this gene is one of the regulatory subunits. This subunit can be phosphorylated by the activated catalytic subunit. It may interact with various A-kinase anchoring proteins and determine the subcellular localization of cAMP-dependent protein kinase. This subunit has been shown to regulate protein transport from endosomes to the Golgi apparatus and further to the endoplasmic reticulum (ER). [provided by RefSeq, Jul 2008]
PRKAR2A Products (4)
| mRNA | Protein | Name |
|---|---|---|
| NM_001321982.2 | NP_001308911.1 | cAMP-dependent protein kinase type II-alpha regulatory subunit isoform a |
| NM_001321983.2 | NP_001308912.1 | cAMP-dependent protein kinase type II-alpha regulatory subunit isoform b |
| NM_001321989.2 | NP_001308918.1 | cAMP-dependent protein kinase type II-alpha regulatory subunit isoform c |
| NM_004157.4 | NP_004148.1 | cAMP-dependent protein kinase type II-alpha regulatory subunit isoform a |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables cAMP-dependent protein kinase inhibitor activity |
IDA
IDA: Inferred from direct assay
|
21812984 | GOA |
| enables cAMP-dependent protein kinase regulator activity |
IDA
IDA: Inferred from direct assay
|
21812984 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
9473338 | GOA |
| enables protein domain specific binding |
IPI
IPI: Inferred from physical interaction
|
25097019 | GOA |
| enables protein kinase A catalytic subunit binding |
IPI
IPI: Inferred from physical interaction
|
17911601 | GOA |
| enables ubiquitin protein ligase binding |
IDA
IDA: Inferred from direct assay
|
21423175 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in negative regulation of cAMP/PKA signal transduction |
IDA
IDA: Inferred from direct assay
|
21812984 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| colocalizes with axoneme |
IDA
IDA: Inferred from direct assay
|
12475942 | GOA |
| part of cAMP-dependent protein kinase complex |
IDA
IDA: Inferred from direct assay
|
12475942 | GOA |
| located in centrosome |
IDA
IDA: Inferred from direct assay
|
21399614 | GOA |
| located in cytoplasm |
IDA
IDA: Inferred from direct assay
|
21423175 | GOA |
| part of nucleotide-activated protein kinase complex |
IDA
IDA: Inferred from direct assay
|
21812984 | GOA |
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
21423175 | GOA |
| located in plasma membrane raft |
IDA
IDA: Inferred from direct assay
|
17911601 | GOA |
| part of protein-containing complex |
IDA
IDA: Inferred from direct assay
|
25097019 | GOA |
PRKAR2A Protein Structure
RIIa: Regulatory subunit of type II PKA R-subunit (9 - 45)
cNMP_binding: Cyclic nucleotide-binding domain (158 - 244)
cNMP_binding: Cyclic nucleotide-binding domain (280 - 372)
- 0
- 100
- 200
- 300
- 404 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
cAMP-dependent protein kinase type II-alpha regulatory subunit |
|
PRKAR2A Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
PRKAR2A | P13861 | AKAP1 | Homo sapiens | Q92667 | 24083380 | |
|
Intra
|
PRKAR2A | P13861 | AKAP3 | Homo sapiens | O75969 | 11278869 |
PRKAR2A Antibodies
| Cat. No. | Product Name | Application | Reactivity |
|---|---|---|---|
| HY-P80429 | PKA R2/PKR2 Antibody (YA132) | WB, IHC-P, IP | Human |
| HY-P80847 | Phospho-PKA R2/PKR2 (Ser99) Antibody | WB, IHC-P, ICC/IF, IP | Human, Mouse, Rat, Pig |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Nivelon-Nivelon-Mabille Syndrome |
|
|
| Carney Complex Variant |
|
|
| Fibrolamellar Carcinoma |
|
|
| Primary Pigmented Nodular Adrenocortical Disease |
|
|
| Kallmann Syndrome |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Macaca mulatta | PRKAR2A | VGNC | VGNC:76407 |
| Mus musculus | PRKAR2A | MGD | MGI:108025 |
| Rattus norvegicus | PRKAR2A | RGD | RGD:3393 |
| Felis catus | PRKAR2A | VGNC | VGNC:69053 |
| Canis familiaris | PRKAR2A | VGNC | VGNC:44976 |
| Bos taurus | PRKAR2A | VGNC | VGNC:33325 |
| Others | PRKAR2A | NCBI |