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

863-1122 (Protein kinase domain)

Relief mechanism

Ligand binding, PTM

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for A1Z7T0

Entry ID Method Resolution Chain Position Source
AF-A1Z7T0-F1 Predicted AlphaFoldDB

No variants for A1Z7T0

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for A1Z7T0

No associated diseases with A1Z7T0

10 regional properties for A1Z7T0

Type Name Position InterPro Accession
domain C2 domain 359 - 515 IPR000008
domain Protein kinase domain 863 - 1122 IPR000719
domain AGC-kinase, C-terminal 1123 - 1190 IPR000961
active_site Serine/threonine-protein kinase, active site 984 - 996 IPR008271
domain HR1 rho-binding domain 28 - 103 IPR011072-1
domain HR1 rho-binding domain 142 - 220 IPR011072-2
domain HR1 rho-binding domain 242 - 323 IPR011072-3
binding_site Protein kinase, ATP binding site 869 - 892 IPR017441
domain Protein kinase, C-terminal 1143 - 1185 IPR017892
domain Serine/threonine-protein kinase N, first HR1 domain 37 - 100 IPR037313

Functions

Description
EC Number 2.7.11.13 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

9 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.
apical cortex The region that lies just beneath the plasma membrane on the apical edge of a cell.
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.
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
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.

6 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 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
small GTPase binding Binding to a small monomeric GTPase.

8 GO annotations of biological process

Name Definition
actin cytoskeleton organization A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins.
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.
dorsal closure The process during Drosophila embryogenesis whereby the ectodermal cells of the lateral epithelium stretch in a coordinated fashion to internalize the amnioserosa cells and close the embryo dorsally.
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.
mitotic cytokinesis, division site positioning The process in which a contractile ring is positioned in a specific location during the mitotic cell cycle. This process is critical for both for both symmetric and asymmetric cell divisions.
positive regulation of wound healing Any process that increases the rate, frequency, or extent of the series of events that restore integrity to a damaged tissue, following an injury.
protein autophosphorylation The phosphorylation by a protein of one or more of its own amino acid residues (cis-autophosphorylation), or residues on an identical protein (trans-autophosphorylation).
wing disc morphogenesis The process in which the anatomical structures derived from the wing disc are generated and organized. This includes the transformation of a wing imaginal disc from a monolayered epithelium in the larvae of holometabolous insects into recognizable adult structures including the wing hinge, wing blade and pleura.

31 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
Q9W0V1 Pdk1 3-phosphoinositide-dependent protein kinase 1 Drosophila melanogaster (Fruit fly) SS
A1Z9X0 aPKC Atypical protein kinase C Drosophila melanogaster (Fruit fly) 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
Q8INB9 Akt RAC serine/threonine-protein kinase Drosophila melanogaster (Fruit fly) SS
Q9NBK5 trc Serine/threonine-protein kinase tricornered Drosophila melanogaster (Fruit fly) SS
P83099 Pkcdelta Putative protein kinase C delta type homolog Drosophila melanogaster (Fruit fly) PR
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
Q05655 PRKCD Protein kinase C delta type Homo sapiens (Human) SS
Q16512 PKN1 Serine/threonine-protein kinase N1 Homo sapiens (Human) EV
Q16513 PKN2 Serine/threonine-protein kinase N2 Homo sapiens (Human) EV
Q6P5Z2 PKN3 Serine/threonine-protein kinase N3 Homo sapiens (Human) 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
P70268 Pkn1 Serine/threonine-protein kinase N1 Mus musculus (Mouse) SS
Q8BWW9 Pkn2 Serine/threonine-protein kinase N2 Mus musculus (Mouse) SS
Q8K045 Pkn3 Serine/threonine-protein kinase N3 Mus musculus (Mouse) 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
Q63433 Pkn1 Serine/threonine-protein kinase N1 Rattus norvegicus (Rat) SS
O08874 Pkn2 Serine/threonine-protein kinase N2 Rattus norvegicus (Rat) SS
P34722 tpa-1 Protein kinase C-like 1 Caenorhabditis elegans PR
A7MBL8 pkn2 Serine/threonine-protein kinase N2 Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MSDSYYQGEY IKHPVLYELS HKYGFTENLP ESCMSIRLEE IKEAIRREIR KELKIKEGAE
70 80 90 100 110 120
KLREVAKDRR SLSDVAVLVK KSKSKLAELK SELQELESQI LLTSANTAVN SNGQESITAC
130 140 150 160 170 180
IDPNGGFLVS GAVGGLGGGN TALEGGAPAT ANDKVLASLE KQLQIEMKVK TGAENMIQSL
190 200 210 220 230 240
GIGCDKKLLA EAHQMLADSK AKIEFLRLRI IKVKQNREQA DRLKASRQMI DEHGQTIGGN
250 260 270 280 290 300
NSSQPQSLET TLEERIEELR HRLRIEAAVV DGAKNVIRTL QTANRAPDKK ALQEAHGRLS
310 320 330 340 350 360
ESSRKLDLLR YSLDLRRQEL PADSPAAQQL KTELQIVQLS TSPAPVTYTS LQSGQAGILG
370 380 390 400 410 420
GKPYQSVSSL GRCASVTGKL EVRLLGCQDL LEDVPGRSRR DKDNNSSPGD LRSFVKGVTS
430 440 450 460 470 480
RSSSKSYSVK DETSIEIMAV IKLDNITVGQ TSWKQCSQQA WDQRFSIDLD RSRELEIGVY
490 500 510 520 530 540
WRDWRSLCAV KVLRLEEFID DVRHGMALQL EPQGLLFAEV KFLNPMISQK PKLRRQRMIF
550 560 570 580 590 600
NRQQAKNISR AKQMNINVAT WGRLLKRNAP NHVHMGSAGS GSSLTGSSPM VVGGSRDSES
610 620 630 640 650 660
PISRTPSSDA LVEPEPYTPG EQAQNLEFDP DAGINEHVET PGEYPDPAAS GLSGMRPLSM
670 680 690 700 710 720
HMQGISVLPP ESPPVATGAA GRPNTLSLQM PGASKGQVIQ GGRTAAPTTA PPPPPVLKAT
730 740 750 760 770 780
STTPILDQEV IPQLGKLYVG SSQQQYAQQS SPIIQEPATP TIYGNSAAAG APQFPQPAQR
790 800 810 820 830 840
QEKQPPQQQP IYANQYELNV AKAAAAASVY SPSSSTTSNS NQQQQQQRRN VARGLQYRES
850 860 870 880 890 900
GGLETGRAGK QPPNAGMLSM DNFRLLSVLG RGHFGKVILS QLRSNNQYYA IKALKKGDII
910 920 930 940 950 960
ARDEVESLLS EKRIFEVANA MRHPFLVNLY SCFQTEQHVC FVMEYAAGGD LMMHIHTDVF
970 980 990 1000 1010 1020
LEPRAVFYAA CVVLGLQYLH ENKIIYRDLK LDNLLLDTEG YVKIADFGLC KEGMGFGDRT
1030 1040 1050 1060 1070 1080
GTFCGTPEFL APEVLTETSY TRAVDWWGLG VLIFEMLVGE SPFPGDDEEE VFDSIVNDEV
1090 1100 1110 1120 1130 1140
RYPRFLSLEA IAVMRRLLRK NPERRLGSSE RDAEDVKKQA FFRSIVWDDL LLRKVKPPFV
1150 1160 1170 1180
PTINHLEDVS NFDEEFTSEK AQLTPPKEPR HLTEEEQLLF QDFSYTAEWC