Descriptions

Serine/threonine-protein kinase N1 (PKN1) is a PKC-related serine/threonine protein kinase involved in specific signal transduction responses such as regulation of intermediate filaments of the actin cytoskeleton, cell migration, tumor cell invasion, and transcription regulation in cells. Its kinase activity is enhanced by fatty acids such as arachidonic acid or the small GTP-binding protein Rho. Residues 455-511 of PKN selectively inhibit the kinase activity of the catalytic fragment of PKN1. Arachidonic acid relieves the catalytic activity of wild-type PKN from autoinhibition by residues 455-511 of PKN.

Autoinhibitory domains (AIDs)

Target domain

650-909 (Protein kinase domain)

Relief mechanism

Ligand binding, PTM

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for A7MBL8

Entry ID Method Resolution Chain Position Source
AF-A7MBL8-F1 Predicted AlphaFoldDB

No variants for A7MBL8

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for A7MBL8

No associated diseases with A7MBL8

11 regional properties for A7MBL8

Type Name Position InterPro Accession
domain C2 domain 298 - 468 IPR000008
domain Protein kinase domain 650 - 909 IPR000719
domain AGC-kinase, C-terminal 910 - 977 IPR000961
active_site Serine/threonine-protein kinase, active site 771 - 783 IPR008271
domain HR1 rho-binding domain 24 - 101 IPR011072-1
domain HR1 rho-binding domain 114 - 195 IPR011072-2
domain HR1 rho-binding domain 200 - 281 IPR011072-3
binding_site Protein kinase, ATP binding site 656 - 679 IPR017441
domain Protein kinase, C-terminal 930 - 972 IPR017892
domain Serine/threonine-protein kinase N, first HR1 domain 33 - 98 IPR037313
domain Serine/threonine-protein kinase N, C2 domain 387 - 468 IPR037784

Functions

Description
EC Number 2.7.11.- Protein-serine/threonine kinases
Subcellular Localization
  • Cytoplasm
  • Nucleus
  • Membrane
  • Cell projection, lamellipodium
  • Cytoplasm, cytoskeleton
  • Cleavage furrow
  • Midbody
  • Cell junction
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

7 GO annotations of cellular component

Name Definition
anchoring junction A cell junction that mechanically attaches a cell (and its cytoskeleton) to neighboring cells or to the extracellular matrix.
cleavage furrow The cleavage furrow is a plasma membrane invagination at the cell division site. The cleavage furrow begins as a shallow groove and eventually deepens to divide the cytoplasm.
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
cytoskeleton A cellular structure that forms the internal framework of eukaryotic and prokaryotic cells. The cytoskeleton includes intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
lamellipodium A thin sheetlike process extended by the leading edge of a migrating cell or extending cell process; contains a dense meshwork of actin filaments.
midbody A thin cytoplasmic bridge formed between daughter cells at the end of cytokinesis. The midbody forms where the contractile ring constricts, and may persist for some time before finally breaking to complete cytokinesis.
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.

5 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
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
small GTPase binding Binding to a small monomeric GTPase.

5 GO annotations of biological process

Name Definition
cell adhesion The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.
cell cycle The progression of biochemical and morphological phases and events that occur in a cell during successive cell replication or nuclear replication events. Canonically, the cell cycle comprises the replication and segregation of genetic material followed by the division of the cell, but in endocycles or syncytial cells nuclear replication or nuclear division may not be followed by cell division.
cell division The process resulting in division and partitioning of components of a cell to form more cells; may or may not be accompanied by the physical separation of a cell into distinct, individually membrane-bounded daughter cells.
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.

27 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
A1A4I4 PKN1 Serine/threonine-protein kinase N1 Bos taurus (Bovine) SS
P83099 Pkcdelta Putative protein kinase C delta type homolog Drosophila melanogaster (Fruit fly) PR
A1Z7T0 Pkn Serine/threonine-protein kinase N Drosophila melanogaster (Fruit fly) SS
Q04759 PRKCQ Protein kinase C theta type Homo sapiens (Human) PR
Q96LW2 RSKR Ribosomal protein S6 kinase-related protein Homo sapiens (Human) PR
Q02156 PRKCE Protein kinase C epsilon type Homo sapiens (Human) SS
P24723 PRKCH Protein kinase C eta type Homo sapiens (Human) SS
Q16512 PKN1 Serine/threonine-protein kinase N1 Homo sapiens (Human) EV
Q05655 PRKCD Protein kinase C delta type Homo sapiens (Human) SS
Q6P5Z2 PKN3 Serine/threonine-protein kinase N3 Homo sapiens (Human) SS
Q16513 PKN2 Serine/threonine-protein kinase N2 Homo sapiens (Human) EV
P70268 Pkn1 Serine/threonine-protein kinase N1 Mus musculus (Mouse) SS
P23298 Prkch Protein kinase C eta type Mus musculus (Mouse) PR
Q02111 Prkcq Protein kinase C theta type Mus musculus (Mouse) PR
P16054 Prkce Protein kinase C epsilon type Mus musculus (Mouse) PR
P28867 Prkcd Protein kinase C delta type Mus musculus (Mouse) PR
Q8K045 Pkn3 Serine/threonine-protein kinase N3 Mus musculus (Mouse) SS
Q8BWW9 Pkn2 Serine/threonine-protein kinase N2 Mus musculus (Mouse) SS
Q63433 Pkn1 Serine/threonine-protein kinase N1 Rattus norvegicus (Rat) SS
Q64617 Prkch Protein kinase C eta type Rattus norvegicus (Rat) PR
P09216 Prkce Protein kinase C epsilon type Rattus norvegicus (Rat) PR
P09215 Prkcd Protein kinase C delta type Rattus norvegicus (Rat) PR
O08874 Pkn2 Serine/threonine-protein kinase N2 Rattus norvegicus (Rat) SS
P34722 tpa-1 Protein kinase C-like 1 Caenorhabditis elegans PR
Q90XF2 prkci Protein kinase C iota type Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q7SY24 prkcbb Protein kinase C beta type Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MAADSVQNDA RGPMVSGRLD FDQNLDFSDT MVQKNLDEIK DQIKREIRKE LKIKEGAENL
70 80 90 100 110 120
RKVTTDKKSL AYVDNMLKKS NKKVEELHQE LQELNAHIVV KDPEEVEEYP LTPDTPKSET
130 140 150 160 170 180
RMSTNSNRLA ALKKQADIEL KVKQGAEDMI QMYSNGSSKD RKLLAAAQQM LQDSKTKIEF
190 200 210 220 230 240
IRMQILKASQ TSEINYENND VTTSKPIISP LDLRIEELRH HYRIESAVAD GAKNVMKLLG
250 260 270 280 290 300
TGKVTEKKAH SEAQARLNES SQKLDLLKFS LEQRLSELPK NHPKGTLIME ELAMVASPPN
310 320 330 340 350 360
SPRQSIMSTS NQYSTVAKPA ALTGTLDVRL MGCQDLLENV PGRSKTASVS LPGWSPSEAR
370 380 390 400 410 420
SSFMSRGNKN KSGSSRTLSK SDDLSNEISA VLKLDNTVVG QTHWKPVSNQ SWDQKFTLEL
430 440 450 460 470 480
DRSRELEIAV YWRDWRSLCA VKFLRLEDFL DNQRHGMCLY LEPQGTLFAE VTFFNPVIER
490 500 510 520 530 540
RPKLQRQKKI FSKQQGKTFL RAPQMNINIA TWGRLVRRAI PSVNTSFSPQ AADLGSAMSH
550 560 570 580 590 600
ETAPMGHPDA HSLPSDPTVT KLDFDKAVTP PSKRNSIEVE IEETAPPDKI SDGKEVQDAL
610 620 630 640 650 660
ATFDFLNNTV AKPDYDSLVE HEQPGLELTE IQRKTEIREE EEVQFSLSDF KCVAVLGRGH
670 680 690 700 710 720
FGKVLLADYK TTGEMFAIKA LKKGDIVARD EVDSLMCEKR IFETVNSVRH PFLVNLFACF
730 740 750 760 770 780
QTKEHVCFVM EYAAGGDLMM HIHADVFSET RSVFYAACVV LGLQFLHDHK IVYRDLKLDN
790 800 810 820 830 840
LLLDTEGYVK IADFGLCKEG MGFKDRTSTF CGTPEFLAPE VLTETSYTRA VDWWGLGVLI
850 860 870 880 890 900
FEMLVGESPF PGDDEEEVFD SIVNDEVRYP KYLSTEAISI MRRLLRRNPE RRLGAGERDA
910 920 930 940 950 960
EEVKRHPFFR DMDWPGLLAK KIRPPFVPTI TSREDVSNFD DEFTSEAPIL TPPREPRILT
970
LGEQDLFADF DYIADWC