Descriptions

PRKCA encodes for Protein kinase C (PKC) alpha type belonging to the PCKs family and is involved in various cellular processes, including cell growth, immune response, muscle contraction, and synaptic plasticity. A well-known autoinhibitory region of the PKC family is a pseudosubstrate sequence at residues 1-30 that directly interacts with and blocks the catalytic activity of the kinase domain. Subsequences of the pseudosubstrate region are the C1 domains (C1A and C1B that bind diacylglycerol (DAG)), and the C2 domain (which binds to anionic phospholipids in a Ca2+-dependent manner). The C1A (residues 31-100) domain coordinates a network of domain-domain intramolecular interactions, including direct C1A-C2 contacts. The pseudosubstrate and C1A domains function as a single functional unit and are required to maintain autoinhibition. Additionally, the absence of the C1A domain significantly increases basal activity.

Autoinhibitory domains (AIDs)

Target domain

340-685 (Catalytic domain of the Serine/Threonine Kinase, Classical Protein Kinase C alpha)

Relief mechanism

Ligand binding

Assay

Target domain

340-685 (Catalytic domain of the Serine/Threonine Kinase, Classical Protein Kinase C alpha)

Relief mechanism

Ligand binding

Assay

Target domain

353-600 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Target domain

353-600 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

497-520 (Activation loop from InterPro)

Target domain

351-614 (Protein kinase domain)

Relief mechanism

Assay

References

Autoinhibited structure

Activated structure

3 structures for P63319

Entry ID Method Resolution Chain Position Source
1TBN NMR - A 91-172 PDB
1TBO NMR - A 91-172 PDB
AF-P63319-F1 Predicted AlphaFoldDB

No variants for P63319

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P63319

No associated diseases with P63319

12 regional properties for P63319

Type Name Position InterPro Accession
domain C2 domain 157 - 277 IPR000008
domain Protein kinase domain 351 - 614 IPR000719
domain AGC-kinase, C-terminal 615 - 685 IPR000961
domain Protein kinase C-like, phorbol ester/diacylglycerol-binding domain 35 - 86 IPR002219-1
domain Protein kinase C-like, phorbol ester/diacylglycerol-binding domain 100 - 152 IPR002219-2
active_site Serine/threonine-protein kinase, active site 476 - 488 IPR008271
binding_site Protein kinase, ATP binding site 357 - 380 IPR017441
domain Protein kinase, C-terminal 642 - 675 IPR017892
domain Diacylglycerol/phorbol-ester binding 33 - 47 IPR020454-1
domain Diacylglycerol/phorbol-ester binding 49 - 58 IPR020454-2
domain Diacylglycerol/phorbol-ester binding 62 - 73 IPR020454-3
domain Diacylglycerol/phorbol-ester binding 139 - 151 IPR020454-4

Functions

Description
EC Number 2.7.11.13 Protein-serine/threonine kinases
Subcellular Localization
  • Cytoplasm
  • Cytoplasm, perinuclear region
  • Cell membrane ; Peripheral membrane protein
  • Synapse, synaptosome
  • Cell projection, dendrite
  • Translocates to synaptic membranes on stimulation
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

12 GO annotations of cellular component

Name Definition
calyx of Held The terminal specialization of a calyciferous axon which forms large synapses in the mammalian auditory central nervous system.
cell-cell junction A cell junction that forms a connection between two or more cells of an organism; excludes direct cytoplasmic intercellular bridges, such as ring canals in insects.
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
dendrite A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
nucleus A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
perinuclear region of cytoplasm Cytoplasm situated near, or occurring around, the nucleus.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
postsynaptic cytosol The region of the cytosol consisting of all cytosol that is part of the postsynapse.
postsynaptic density An electron dense network of proteins within and adjacent to the postsynaptic membrane of an asymmetric, neuron-neuron synapse. Its major components include neurotransmitter receptors and the proteins that spatially and functionally organize them such as anchoring and scaffolding molecules, signaling enzymes and cytoskeletal components.
presynaptic cytosol The region of the cytosol consisting of all cytosol that is part of the presynapse.
synaptic membrane A specialized area of membrane on either the presynaptic or the postsynaptic side of a synapse, the junction between a nerve fiber of one neuron and another neuron or muscle fiber or glial cell.

8 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
calcium,diacylglycerol-dependent serine/threonine kinase activity Calcium-dependent catalysis of the reaction
diacylglycerol-dependent serine/threonine kinase activity Catalysis of the reaction
protein kinase activity Catalysis of the phosphorylation of an amino acid residue in a protein, usually according to the reaction
protein serine kinase activity Catalysis of the reactions
protein serine/threonine kinase activity Catalysis of the reactions
protein serine/threonine/tyrosine kinase activity Catalysis of the reactions
zinc ion binding Binding to a zinc ion (Zn).

22 GO annotations of biological process

Name Definition
chemical synaptic transmission The vesicular release of classical neurotransmitter molecules from a presynapse, across a chemical synapse, the subsequent activation of neurotransmitter receptors at the postsynapse of a target cell (neuron, muscle, or secretory cell) and the effects of this activation on the postsynaptic membrane potential and ionic composition of the postsynaptic cytosol. This process encompasses both spontaneous and evoked release of neurotransmitter and all parts of synaptic vesicle exocytosis. Evoked transmission starts with the arrival of an action potential at the presynapse.
chemosensory behavior Behavior that is dependent upon the sensation of chemicals.
innervation The process in which a nerve invades a tissue and makes functional synaptic connection within the tissue.
intracellular signal transduction The process in which a signal is passed on to downstream components within the cell, which become activated themselves to further propagate the signal and finally trigger a change in the function or state of the cell.
learning or memory The acquisition and processing of information and/or the storage and retrieval of this information over time.
long-term synaptic potentiation A process that modulates synaptic plasticity such that synapses are changed resulting in the increase in the rate, or frequency of synaptic transmission at the synapse.
negative regulation of neuron apoptotic process Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process in neurons.
negative regulation of proteasomal protein catabolic process Any process that stops, prevents or reduces the frequency, rate or extent of proteasomal protein catabolic process.
negative regulation of protein catabolic process Any process that stops, prevents or reduces the frequency, rate or extent of protein catabolic process.
negative regulation of protein ubiquitination Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of ubiquitin groups to a protein.
phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
positive regulation of mismatch repair Any process that activates or increases the frequency, rate or extent of mismatch repair.
presynaptic modulation of chemical synaptic transmission Any process, acting in the presynapse that results in modulation of chemical synaptic transmission.
regulation of circadian rhythm Any process that modulates the frequency, rate or extent of a circadian rhythm. A circadian rhythm is a biological process in an organism that recurs with a regularity of approximately 24 hours.
regulation of phagocytosis Any process that modulates the frequency, rate or extent of phagocytosis, the process in which phagocytes engulf external particulate material.
regulation of response to food Any process that modulates the frequency, rate or extent of a response to a food stimulus.
regulation of synaptic vesicle exocytosis Any process that modulates the frequency, rate or extent of synaptic vesicle exocytosis.
response to morphine Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a morphine stimulus. Morphine is an opioid alkaloid, isolated from opium, with a complex ring structure.
response to pain Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a pain stimulus. Pain stimuli cause activation of nociceptors, peripheral receptors for pain, include receptors which are sensitive to painful mechanical stimuli, extreme heat or cold, and chemical stimuli.
response to psychosocial stress Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of exposure to aversive or demanding psychological and social conditions that tax or exceed the behavioral resources of the organism.
response to toxic substance Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a toxic stimulus.
rhythmic process Any process pertinent to the generation and maintenance of rhythms in the physiology of an organism.

32 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
P24583 PKC1 Protein kinase C-like 1 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) SS
P04409 PRKCA Protein kinase C alpha type Bos taurus (Bovine) EV SS
P05126 PRKCB Protein kinase C beta type Bos taurus (Bovine) SS
P05128 PRKCG Protein kinase C gamma type Bos taurus (Bovine) SS
P13677 inaC Protein kinase C, eye isozyme Drosophila melanogaster (Fruit fly) SS
P05130 Pkc53E Protein kinase C, brain isozyme Drosophila melanogaster (Fruit fly) SS
P05771 PRKCB Protein kinase C beta type Homo sapiens (Human) SS
P17252 PRKCA Protein kinase C alpha type Homo sapiens (Human) EV
P05129 PRKCG Protein kinase C gamma type Homo sapiens (Human) SS
Q02156 PRKCE Protein kinase C epsilon type Homo sapiens (Human) SS
P24723 PRKCH Protein kinase C eta type Homo sapiens (Human) SS
P20444 Prkca Protein kinase C alpha type Mus musculus (Mouse) SS
P68404 Prkcb Protein kinase C beta type Mus musculus (Mouse) SS
P63318 Prkcg Protein kinase C gamma type Mus musculus (Mouse) SS
P16054 Prkce Protein kinase C epsilon type Mus musculus (Mouse) PR
P23298 Prkch Protein kinase C eta type Mus musculus (Mouse) PR
O55173 Pdpk1 3-phosphoinositide-dependent protein kinase 1 Rattus norvegicus (Rat) SS
P09217 Prkcz Protein kinase C zeta type Rattus norvegicus (Rat) SS
F1M7Y5 Prkci Protein kinase C iota type Rattus norvegicus (Rat) SS
Q63433 Pkn1 Serine/threonine-protein kinase N1 Rattus norvegicus (Rat) SS
Q64617 Prkch Protein kinase C eta type Rattus norvegicus (Rat) PR
P09215 Prkcd Protein kinase C delta type Rattus norvegicus (Rat) PR
P47197 Akt2 RAC-beta serine/threonine-protein kinase Rattus norvegicus (Rat) SS
P47196 Akt1 RAC-alpha serine/threonine-protein kinase Rattus norvegicus (Rat) PR
Q63484 Akt3 RAC-gamma serine/threonine-protein kinase Rattus norvegicus (Rat) PR
P05696 Prkca Protein kinase C alpha type Rattus norvegicus (Rat) SS
O08874 Pkn2 Serine/threonine-protein kinase N2 Rattus norvegicus (Rat) SS
P09216 Prkce Protein kinase C epsilon type Rattus norvegicus (Rat) PR
P68403 Prkcb Protein kinase C beta type Rattus norvegicus (Rat) SS
P90980 pkc-2 Protein kinase C-like 2 Caenorhabditis elegans SS
A8KBH6 prkcb Protein kinase C beta type Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) SS
Q7SY24 prkcbb Protein kinase C beta type Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MAGLGPGGGD SEGGPRPLFC RKGALRQKVV HEVKSHKFTA RFFKQPTFCS HCTDFIWGIG
70 80 90 100 110 120
KQGLQCQVCS FVVHRRCHEF VTFECPGAGK GPQTDDPRNK HKFRLHSYSS PTFCDHCGSL
130 140 150 160 170 180
LYGLVHQGMK CSCCEMNVHR RCVRSVPSLC GVDHTERRGR LQLEIRAPTS DEIHITVGEA
190 200 210 220 230 240
RNLIPMDPNG LSDPYVKLKL IPDPRNLTKQ KTKTVKATLN PVWNETFVFN LKPGDVERRL
250 260 270 280 290 300
SVEVWDWDRT SRNDFMGAMS FGVSELLKAP VDGWYKLLNQ EEGEYYNVPV ADADNCSLLQ
310 320 330 340 350 360
KFEACNYPLE LYERVRMGPS SSPIPSPSPS PTDSKRCFFG ASPGRLHISD FSFLMVLGKG
370 380 390 400 410 420
SFGKVMLAER RGSDELYAIK ILKKDVIVQD DDVDCTLVEK RVLALGGRGP GGRPHFLTQL
430 440 450 460 470 480
HSTFQTPDRL YFVMEYVTGG DLMYHIQQLG KFKEPHAAFY AAEIAIGLFF LHNQGIIYRD
490 500 510 520 530 540
LKLDNVMLDA EGHIKITDFG MCKENVFPGS TTRTFCGTPD YIAPEIIAYQ PYGKSVDWWS
550 560 570 580 590 600
FGVLLYEMLA GQPPFDGEDE EELFQAIMEQ TVTYPKSLSR EAVAICKGFL TKHPGKRLGS
610 620 630 640 650 660
GPDGEPTIRA HGFFRWIDWE RLERLEIAPP FRPRPCGRSG ENFDKFFTRA APALTPPDRL
670 680 690
VLASIDQADF QGFTYVNPDF VHPDARSPTS PVPVPVM