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

337-681 (Catalytic domain of the Serine/Threonine Kinase, Classical Protein Kinase C alpha)

Relief mechanism

Ligand binding

Assay

Target domain

337-681 (Catalytic domain of the Serine/Threonine Kinase, Classical Protein Kinase C alpha)

Relief mechanism

Ligand binding

Assay

Target domain

350-592 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Target domain

350-592 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

489-512 (Activation loop from InterPro)

Target domain

348-609 (Protein kinase domain)

Relief mechanism

Assay

489-512 (Activation loop from InterPro)

Target domain

348-609 (Protein kinase domain)

Relief mechanism

Assay

References

Autoinhibited structure

Activated structure

1 structures for P90980

Entry ID Method Resolution Chain Position Source
AF-P90980-F1 Predicted AlphaFoldDB

No variants for P90980

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for P90980

No associated diseases with P90980

12 regional properties for P90980

Type Name Position InterPro Accession
domain C2 domain 160 - 280 IPR000008
domain Protein kinase domain 348 - 609 IPR000719
domain AGC-kinase, C-terminal 610 - 681 IPR000961
domain Protein kinase C-like, phorbol ester/diacylglycerol-binding domain 38 - 89 IPR002219-1
domain Protein kinase C-like, phorbol ester/diacylglycerol-binding domain 103 - 155 IPR002219-2
active_site Serine/threonine-protein kinase, active site 468 - 480 IPR008271
binding_site Protein kinase, ATP binding site 354 - 377 IPR017441
domain Protein kinase, C-terminal 631 - 671 IPR017892
domain Diacylglycerol/phorbol-ester binding 36 - 50 IPR020454-1
domain Diacylglycerol/phorbol-ester binding 52 - 61 IPR020454-2
domain Diacylglycerol/phorbol-ester binding 65 - 76 IPR020454-3
domain Diacylglycerol/phorbol-ester binding 142 - 154 IPR020454-4

Functions

Description
EC Number 2.7.11.13 Protein-serine/threonine kinases
Subcellular Localization
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

4 GO annotations of cellular component

Name Definition
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
membrane A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
neuron projection A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
neuronal cell body The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites.

6 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 serine kinase activity Catalysis of the reactions
protein serine/threonine kinase activity Catalysis of the reactions
zinc ion binding Binding to a zinc ion (Zn).

2 GO annotations of biological process

Name Definition
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.
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.

28 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
P05126 PRKCB Protein kinase C beta type Bos taurus (Bovine) SS
P04409 PRKCA Protein kinase C alpha type Bos taurus (Bovine) EV SS
P05128 PRKCG Protein kinase C gamma type Bos taurus (Bovine) SS
P05130 Pkc53E Protein kinase C, brain isozyme Drosophila melanogaster (Fruit fly) SS
P13677 inaC Protein kinase C, eye isozyme Drosophila melanogaster (Fruit fly) SS
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
P17252 PRKCA Protein kinase C alpha type Homo sapiens (Human) EV
P05771 PRKCB Protein kinase C beta type Homo sapiens (Human) SS
P63318 Prkcg Protein kinase C gamma type Mus musculus (Mouse) SS
P16054 Prkce Protein kinase C epsilon type Mus musculus (Mouse) PR
P68404 Prkcb Protein kinase C beta type Mus musculus (Mouse) SS
P23298 Prkch Protein kinase C eta type Mus musculus (Mouse) PR
P20444 Prkca Protein kinase C alpha type Mus musculus (Mouse) SS
Q64617 Prkch Protein kinase C eta type Rattus norvegicus (Rat) PR
P63319 Prkcg Protein kinase C gamma type Rattus norvegicus (Rat) SS
P05696 Prkca Protein kinase C alpha type Rattus norvegicus (Rat) SS
P68403 Prkcb Protein kinase C beta type Rattus norvegicus (Rat) SS
Q9Y1J3 pdk-1 3-phosphoinositide-dependent protein kinase 1 Caenorhabditis elegans SS
Q19266 pkc-3 Protein kinase C-like 3 Caenorhabditis elegans SS
P34722 tpa-1 Protein kinase C-like 1 Caenorhabditis elegans PR
Q9XTG7 akt-2 Serine/threonine-protein kinase akt-2 Caenorhabditis elegans SS
Q17941 akt-1 Serine/threonine-protein kinase akt-1 Caenorhabditis elegans PR
Q2L6W9 sax-1 Serine/threonine-protein kinase sax-1 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
MSLSTNSSVK EDEAQRIEGK AFVRRGALRQ KNVHEIKSHK FIARFFKQPT FCSHCKDFLW
70 80 90 100 110 120
GITKQGFQCQ VCTLVVHKRC HEFVNFACPG ADKGVDTDDP RQQHKWKVQT YSSPTFCDHC
130 140 150 160 170 180
GSLLYGILHQ GMKCQSCDTN VHHRCVKNVP NMCGTDNTEK RGRLRIEAHI ENDQLTIKIL
190 200 210 220 230 240
EAKNLIPMDP NGLSDPYVKC KLIPEDSGCK SKQKTKTLRA TLNPQWNETF TYKLLPGDKD
250 260 270 280 290 300
RRLSIEVWDW DRTSRNDFMG SLSFGISELM KEAASGWYKL LSAEEGEFYN INITPEYDED
310 320 330 340 350 360
MEKVRKKMNE NFITRDNSSS KPKDPAAPRA STLPLGSSNH NVIKASDFNF LTVLGKGSFG
370 380 390 400 410 420
KVLLGEQKTT KELFAIKVLK KDVIIQDDDV ECTMTEKRVL ALPEKPSFLV ALHSCFQTMD
430 440 450 460 470 480
RLYFVMEFVN GGDLMYQIQQ VGKFKEPVAV FYAAEIAVGL FFLHSKGIIY RDLKLDNVML
490 500 510 520 530 540
ERDGHIKITD FGMCKENIFG DATTKTFCGT PDYIAPEIIL YQPYGKSVDW WAYGVLLFEM
550 560 570 580 590 600
LAGQPPFDGE DEDELFTAIT EHNVSYPKSL SKEAVSLCKA LLIKNPSKRL GCTGDDESAS
610 620 630 640 650 660
RDIKEHPFFR RIDWFKIETR QIQPPFKPKL KTDRSTENFD HSFLKLPTKM TPPDWEVLEN
670 680
LKGDEFSNFS FVNPFYVKDV EP