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

656-915 (Protein kinase domain)

Relief mechanism

Ligand binding, PTM

Assay

Accessory elements

798-821 (Activation loop from InterPro)

Target domain

656-915 (Protein kinase domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

1 structures for Q8BWW9

Entry ID Method Resolution Chain Position Source
AF-Q8BWW9-F1 Predicted AlphaFoldDB

36 variants for Q8BWW9

Variant ID(s) Position Change Description Diseaes Association Provenance
rs3388661762 30 A>D No EVA
rs3388649350 31 V>G No EVA
rs3388664458 55 E>D No EVA
rs3388670544 87 K>I No EVA
rs3388668004 94 E>* No EVA
rs3388649379 202 E>D No EVA
rs3388663969 223 R>SE* No EVA
rs3388665507 224 H>D No EVA
rs3388665469 265 S>G No EVA
rs3388655508 274 S>* No EVA
rs3413091441 289 S>G No EVA
rs226158813 300 A>T No EVA
rs259400913 310 M>T No EVA
rs31076655 315 N>S No EVA
rs3388668582 410 P>S No EVA
rs3393803794 439 W>* No EVA
rs3388660346 441 S>Y No EVA
rs3388655906 497 K>* No EVA
rs3388666782 559 D>G No EVA
rs3388665482 629 D>E No EVA
rs3388660353 665 G>V No EVA
rs3388671394 668 G>E No EVA
rs3388668599 682 F>S No EVA
rs3388666698 689 K>* No EVA
rs3388670507 694 A>T No EVA
rs3388671353 825 P>T No EVA
rs3388663310 836 A>V No EVA
rs3388663910 839 W>G No EVA
rs3393812119 893 R>I No EVA
rs3388655981 900 G>V No EVA
rs3388663975 951 S>L No EVA
rs31075246 964 I>V No EVA
rs218714099 967 E>Q No EVA
rs248278710 971 E>D No EVA
rs3388649393 979 V>I No EVA
rs3388663919 980 A>T No EVA

No associated diseases with Q8BWW9

11 regional properties for Q8BWW9

Type Name Position InterPro Accession
domain C2 domain 329 - 472 IPR000008
domain Protein kinase domain 656 - 915 IPR000719
domain AGC-kinase, C-terminal 916 - 983 IPR000961
active_site Serine/threonine-protein kinase, active site 777 - 789 IPR008271
domain HR1 rho-binding domain 33 - 110 IPR011072-1
domain HR1 rho-binding domain 121 - 204 IPR011072-2
domain HR1 rho-binding domain 204 - 285 IPR011072-3
binding_site Protein kinase, ATP binding site 662 - 685 IPR017441
domain Protein kinase, C-terminal 936 - 978 IPR017892
domain Serine/threonine-protein kinase N, first HR1 domain 42 - 107 IPR037313
domain Serine/threonine-protein kinase N, C2 domain 389 - 472 IPR037784

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
  • Colocalizes with PTPN13 in lamellipodia-like structures, regions of large actin turnover
  • Accumulates during telophase at the cleavage furrow and concentrates finally around the midbody in cytokinesis
  • Recruited to nascent cell-cell contacts at the apical surface of cells
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

12 GO annotations of cellular component

Name Definition
apical junction complex A functional unit located near the cell apex at the points of contact between epithelial cells, which in vertebrates is composed of the tight junction, the zonula adherens, and desmosomes and in some invertebrates, such as Drosophila, is composed of the subapical complex (SAC), the zonula adherens and the septate junction. Functions in the regulation of cell polarity, tissue integrity and intercellular adhesion and permeability.
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.
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.
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
intermediate filament cytoskeleton Cytoskeletal structure made from intermediate filaments, typically organized in the cytosol as an extended system that stretches from the nuclear envelope to the plasma membrane. Some intermediate filaments run parallel to the cell surface, while others traverse the cytosol; together they form an internal framework that helps support the shape and resilience of the cell.
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.
nuclear body Extra-nucleolar nuclear domains usually visualized by confocal microscopy and fluorescent antibodies to specific proteins.
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.
protein-containing complex A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.

7 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
histone deacetylase binding Binding to histone deacetylase.
protein serine kinase activity Catalysis of the reactions
protein serine/threonine kinase activity Catalysis of the reactions
RNA polymerase binding Binding to an RNA polymerase molecule or complex.
small GTPase binding Binding to a small monomeric GTPase.

13 GO annotations of biological process

Name Definition
apical junction assembly The formation of an apical junction, a functional unit located near the cell apex at the points of contact between epithelial cells composed of the tight junction, the zonula adherens junction and the desmosomes, by the aggregation, arrangement and bonding together of its constituents.
apoptotic process A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
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.
cell projection organization A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a prolongation or process extending from a cell, e.g. a flagellum or axon.
epithelial cell migration The orderly movement of an epithelial cell from one site to another, often during the development of a multicellular organism.
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.
positive regulation of cytokinesis Any process that activates or increases the frequency, rate or extent of the division of the cytoplasm of a cell, and its separation into two daughter cells.
positive regulation of mitotic cell cycle Any process that activates or increases the rate or extent of progression through the mitotic cell cycle.
positive regulation of viral genome replication Any process that activates or increases the frequency, rate or extent of viral genome replication.
protein phosphorylation The process of introducing a phosphate group on to a protein.
regulation of cell motility Any process that modulates the frequency, rate or extent of cell motility.

38 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
Q05655 PRKCD Protein kinase C delta type Homo sapiens (Human) SS
Q16512 PKN1 Serine/threonine-protein kinase N1 Homo sapiens (Human) EV
Q6P5Z2 PKN3 Serine/threonine-protein kinase N3 Homo sapiens (Human) SS
Q16513 PKN2 Serine/threonine-protein kinase N2 Homo sapiens (Human) EV
Q9Z2A0 Pdpk1 3-phosphoinositide-dependent protein kinase 1 Mus musculus (Mouse) SS
Q02956 Prkcz Protein kinase C zeta type Mus musculus (Mouse) SS
Q62074 Prkci Protein kinase C iota type Mus musculus (Mouse) SS
P70268 Pkn1 Serine/threonine-protein kinase N1 Mus musculus (Mouse) SS
Q8K045 Pkn3 Serine/threonine-protein kinase N3 Mus musculus (Mouse) SS
P23298 Prkch Protein kinase C eta type Mus musculus (Mouse) PR
P16054 Prkce Protein kinase C epsilon type Mus musculus (Mouse) PR
Q02111 Prkcq Protein kinase C theta type Mus musculus (Mouse) PR
P28867 Prkcd Protein kinase C delta type Mus musculus (Mouse) PR
P20444 Prkca Protein kinase C alpha type Mus musculus (Mouse) SS
P63318 Prkcg Protein kinase C gamma type Mus musculus (Mouse) SS
P68404 Prkcb Protein kinase C beta type Mus musculus (Mouse) SS
Q60823 Akt2 RAC-beta serine/threonine-protein kinase Mus musculus (Mouse) PR
P31750 Akt1 RAC-alpha serine/threonine-protein kinase Mus musculus (Mouse) PR
Q9WUA6 Akt3 RAC-gamma serine/threonine-protein kinase Mus musculus (Mouse) PR
Q9ERE3 Sgk3 Serine/threonine-protein kinase Sgk3 Mus musculus (Mouse) PR
Q8QZV4 Stk32c Serine/threonine-protein kinase 32C Mus musculus (Mouse) PR
Q91VJ4 Stk38 Serine/threonine-protein kinase 38 Mus musculus (Mouse) SS
Q7TSE6 Stk38l Serine/threonine-protein kinase 38-like 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
A7MBL8 pkn2 Serine/threonine-protein kinase N2 Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MASNPDRGEI LLTELQGDSR TLPFSENVSA VQKLDFSDTM VQQKLDDIKD RIKREIRKEL
70 80 90 100 110 120
KIKEGAENLR KVTTDKKNLA YVDNILKKSN KKLEELHHKL QELNAHIVVS DPEDSTDCPR
130 140 150 160 170 180
TPDTPNSDSR SSTSNNRLMA LQKQLDIELK VKQGAENMIQ MYSNGSSKDR KLHGTAQQLL
190 200 210 220 230 240
QDSKTKIEVI RMQILQAVQT NELAFDNAKP VISPLELRME ELRHHFKIEF AVAEGAKNVM
250 260 270 280 290 300
KLLGSGKVTD RKALSEAQAR FNESSQKLDL LKYSLEQRLN ELPRNHPKSS VVIEELSLVA
310 320 330 340 350 360
SPTLSPRQSM LSTQNQYSTL SKPAALTGTL EVRLMGCQDI LENVPGRSKA TSVALPGWSP
370 380 390 400 410 420
SDNRSSFMSR TSKSKSGSSR NLLKTDDLSN DVCAVLKLDN TVVGQTSWKP ISNQSWDQKF
430 440 450 460 470 480
TLELDRSREL EISVYWRDWR SLCAVKFLRL EDFLDNQRHG MCLYLEPQGT LFAEVTFFNP
490 500 510 520 530 540
VIERRPKLQR QKKIFSKQQG KTFLRAPQMN INIATWGRLV RRAIPTVNHS GTFSPQTPVP
550 560 570 580 590 600
ATVPVVDARI PDLAPPASDS TVTKLDFDLE PEPPPAPPRA SSLGETDESS ELRVLDIPGQ
610 620 630 640 650 660
GSETVFNIEN DRNNLRPKSK SEYELSIPDS GRSCWGVGEL DDKRAQQRFQ FSLQDFRCCA
670 680 690 700 710 720
VLGRGHFGKV LLAEYKHTNE MFAIKALKKG DIVARDEVDS LMCEKRIFET VNSVRHPFLV
730 740 750 760 770 780
NLFACFQTKE HVCFVMEYAA GGDLMMHIHT DVFSEPRAVF YAACVVLGLQ YLHEHKIVYR
790 800 810 820 830 840
DLKLDNLLLD TEGFVKIADF GLCKEGMGYG DRTSTFCGTP EFLAPEVLTE TSYTRAVDWW
850 860 870 880 890 900
GLGVLIYEML VGESPFPGDD EEEVFDSIVN DEVRYPRFLS TEAISIMRRL LRRNPERRLG
910 920 930 940 950 960
AGEKDAEDVK KHPFFRLTDW SALMDKKVKP PFVPTIRGRE DVSNFDDEFT SEAPILTPPR
970 980
EPRILLEEEQ EMFHDFDYVA DWC