Descriptions

PKA is a major intracellular receptor of cAMP and modulates diverse cellular signalings. The N-terminal regulatory domain contains a pseudosubstrate sequence that may interact with the catalytic kinase domain.

Autoinhibitory domains (AIDs)

Target domain

137-253 (Cyclic nucleotide-binding domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for P09456

Entry ID Method Resolution Chain Position Source
AF-P09456-F1 Predicted AlphaFoldDB

No variants for P09456

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P09456

No associated diseases with P09456

2 regional properties for P09456

Type Name Position InterPro Accession
domain Ets domain 340 - 425 IPR000418
domain PEA3-type ETS-domain transcription factor, N-terminal 7 - 339 IPR006715

Functions

Description
EC Number
Subcellular Localization
  • Cell membrane
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

10 GO annotations of cellular component

Name Definition
cAMP-dependent protein kinase complex An enzyme complex, composed of regulatory and catalytic subunits, that catalyzes protein phosphorylation. Inactive forms of the enzyme have two regulatory chains and two catalytic chains; activation by cAMP produces two active catalytic monomers and a regulatory dimer.
centrosome A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle.
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
glutamatergic synapse A synapse that uses glutamate as a neurotransmitter.
multivesicular body A type of endosome in which regions of the limiting endosomal membrane invaginate to form internal vesicles; membrane proteins that enter the internal vesicles are sequestered from the cytoplasm.
neuromuscular junction The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
nucleotide-activated protein kinase complex A protein complex that possesses nucleotide-dependent protein kinase activity. The nucleotide can be AMP (in S. pombe and human) or ADP (in S. cerevisiae).
plasma membrane raft A membrane raft that is part of the plasma membrane.
sperm connecting piece The segment of the sperm flagellum that attaches to the implantation fossa of the nucleus in the sperm head; from the remnant of the centriole at this point, the axoneme extends throughout the length of the flagellum.
synapse The junction between an axon of one neuron and a dendrite of another neuron, a muscle fiber or a glial cell. As the axon approaches the synapse it enlarges into a specialized structure, the presynaptic terminal bouton, which contains mitochondria and synaptic vesicles. At the tip of the terminal bouton is the presynaptic membrane; facing it, and separated from it by a minute cleft (the synaptic cleft) is a specialized area of membrane on the receiving cell, known as the postsynaptic membrane. In response to the arrival of nerve impulses, the presynaptic terminal bouton secretes molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane.

6 GO annotations of molecular function

Name Definition
cAMP binding Binding to cAMP, the nucleotide cyclic AMP (adenosine 3',5'-cyclophosphate).
cAMP-dependent protein kinase inhibitor activity Binds to and stops, prevents or reduces the activity of a cAMP-dependent protein kinase.
cAMP-dependent protein kinase regulator activity Modulation of the activity of the enzyme cAMP-dependent protein kinase.
protein domain specific binding Binding to a specific domain of a protein.
protein kinase A catalytic subunit binding Binding to one or both of the catalytic subunits of protein kinase A.
ubiquitin protein ligase binding Binding to a ubiquitin protein ligase enzyme, any of the E3 proteins.

10 GO annotations of biological process

Name Definition
cardiac muscle cell proliferation The expansion of a cardiac muscle cell population by cell division.
female meiotic nuclear division A cell cycle process by which the cell nucleus divides as part of a meiotic cell cycle in the female germline.
heart development The process whose specific outcome is the progression of the heart over time, from its formation to the mature structure. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
mesoderm formation The process that gives rise to the mesoderm. This process pertains to the initial formation of the structure from unspecified parts.
negative regulation of activated T cell proliferation Any process that stops, prevents or reduces the rate or extent of activated T cell proliferation.
negative regulation of cAMP-dependent protein kinase activity Any process that stops, prevents or reduces the frequency, rate or extent of cAMP-dependent protein kinase activity.
negative regulation of meiotic nuclear division Any process that stops, prevents, or reduces the frequency, rate or extent of meiosis.
negative regulation of protein kinase activity Any process that stops, prevents, or reduces the frequency, rate or extent of protein kinase activity.
regulation of protein kinase activity Any process that modulates the frequency, rate or extent of protein kinase activity.
sarcomere organization The myofibril assembly process that results in the organization of muscle actomyosin into sarcomeres. The sarcomere is the repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs.

22 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P00515 PRKAR2A cAMP-dependent protein kinase type II-alpha regulatory subunit Bos taurus (Bovine) EV
P31322 PRKAR2B cAMP-dependent protein kinase type II-beta regulatory subunit Bos taurus (Bovine) EV
P00514 PRKAR1A cAMP-dependent protein kinase type I-alpha regulatory subunit Bos taurus (Bovine) EV
Q5ZM91 PRKAR1A cAMP-dependent protein kinase type I-alpha regulatory subunit Gallus gallus (Chicken) SS
P81900 Pka-R2 cAMP-dependent protein kinase type II regulatory subunit Drosophila melanogaster (Fruit fly) PR
P16905 Pka-R1 cAMP-dependent protein kinase type I regulatory subunit Drosophila melanogaster (Fruit fly) PR
P13861 PRKAR2A cAMP-dependent protein kinase type II-alpha regulatory subunit Homo sapiens (Human) PR
P31323 PRKAR2B cAMP-dependent protein kinase type II-beta regulatory subunit Homo sapiens (Human) PR
Q96M20 CNBD2 Cyclic nucleotide-binding domain-containing protein 2 Homo sapiens (Human) PR
P31321 PRKAR1B cAMP-dependent protein kinase type I-beta regulatory subunit Homo sapiens (Human) EV
P10644 PRKAR1A cAMP-dependent protein kinase type I-alpha regulatory subunit Homo sapiens (Human) EV
P12849 Prkar1b cAMP-dependent protein kinase type I-beta regulatory subunit Mus musculus (Mouse) PR
P12367 Prkar2a cAMP-dependent protein kinase type II-alpha regulatory subunit Mus musculus (Mouse) PR
P31324 Prkar2b cAMP-dependent protein kinase type II-beta regulatory subunit Mus musculus (Mouse) PR
Q9D5U8 Cnbd2 Cyclic nucleotide-binding domain-containing protein 2 Mus musculus (Mouse) PR
Q9DBC7 Prkar1a cAMP-dependent protein kinase type I-alpha regulatory subunit [Cleaved into: cAMP-dependent protein kinase type I-alpha regulatory subunit, N-terminally processed] Mus musculus (Mouse) SS
P05207 PRKAR2A cAMP-dependent protein kinase type II-alpha regulatory subunit Sus scrofa (Pig) SS
P07802 PRKAR1A cAMP-dependent protein kinase type I-alpha regulatory subunit Sus scrofa (Pig) SS
P12369 Prkar2b cAMP-dependent protein kinase type II-beta regulatory subunit Rattus norvegicus (Rat) PR
P12368 Prkar2a cAMP-dependent protein kinase type II-alpha regulatory subunit Rattus norvegicus (Rat) PR
P81377 Prkar1b cAMP-dependent protein kinase type I-beta regulatory subunit Rattus norvegicus (Rat) PR
P30625 kin-2 cAMP-dependent protein kinase regulatory subunit Caenorhabditis elegans SS
10 20 30 40 50 60
MASGSMAASE EERSLRECEL YVQKHNIQAL LKDSIVQLCT ARPERPMAFL REYFERLEKE
70 80 90 100 110 120
EARQIQSLQK SGIRTDSRED EISPPPPNPV VKGRRRRGAI SAEVYTEEDA ASYVRKVIPK
130 140 150 160 170 180
DYKTMAALAK AIEKNVLFSH LDDNERSDIF DAMFPVSFIA GETVIQQGDE GDNFYVIDQG
190 200 210 220 230 240
EMDVYVNNEW ATSVGEGGSF GELALIYGTP RAATVKAKTN VKLWGIDRDS YRRILMGSTL
250 260 270 280 290 300
RKRKMYEEFL SKVSILESLD KWERLTVADA LEPVQFEDGQ KIVVQGEPGD EFFIILEGTA
310 320 330 340 350 360
AVLQRRSENE EFVEVGRLGP SDYFGEIALL MNRPRAATVV ARGPLKCVKL DRPRFERVLG
370 380
PCSDILKRNI QQYNSFVSLS V