PKN3

gene
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Also known as PKNbetaUTDP4-1

Summary

PKN3 (protein kinase N3, HGNC:17999) is a protein-coding gene on chromosome 9q34.11, encoding Serine/threonine-protein kinase N3 (Q6P5Z2). Contributes to invasiveness in malignant prostate cancer.

Predicted to enable protein serine/threonine kinase activity. Involved in epithelial cell migration. Predicted to be located in Golgi apparatus; cytosol; and nucleus.

Source: NCBI Gene 29941 — RefSeq curated summary.

At a glance

  • GWAS associations: 16
  • Clinical variants (ClinVar): 223 total
  • Druggable target: yes — 3 molecules with ChEMBL bioactivity
  • MANE Select transcript: NM_013355

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:17999
Approved symbolPKN3
Nameprotein kinase N3
Location9q34.11
Locus typegene with protein product
StatusApproved
AliasesPKNbeta, UTDP4-1
Ensembl geneENSG00000160447
Ensembl biotypeprotein_coding
OMIM610714
Entrez29941

Gene structure

Transcript identifiers

Ensembl transcripts: 11 — 9 protein_coding, 2 protein_coding_CDS_not_defined

ENST00000291906, ENST00000483521, ENST00000485301, ENST00000855131, ENST00000855132, ENST00000855133, ENST00000935674, ENST00000935675, ENST00000935676, ENST00000935677, ENST00000935678

RefSeq mRNA: 2 — MANE Select: NM_013355 NM_001317926, NM_013355

CCDS: CCDS6908

Canonical transcript exons

ENST00000291906 — 22 exons

ExonStartEnd
ENSE00001052437128714562128714664
ENSE00001052439128705303128705543
ENSE00001052450128706713128706824
ENSE00001052451128720203128720283
ENSE00001052452128707222128707405
ENSE00001052454128713052128713198
ENSE00001052457128719910128720017
ENSE00001052460128706896128707023
ENSE00001052463128715369128715460
ENSE00001052466128714197128714365
ENSE00001110159128705734128705879
ENSE00001347826128702503128702939
ENSE00001367841128720394128720916
ENSE00003477017128719686128719828
ENSE00003506740128715172128715235
ENSE00003554293128718325128718387
ENSE00003587818128713278128713387
ENSE00003589647128714798128714865
ENSE00003610508128713499128713642
ENSE00003678687128714046128714121
ENSE00003682866128718549128718625
ENSE00003694121128716747128716923

Expression profiles

Bgee: expression breadth ubiquitous, 175 present calls, max score 89.79.

FANTOM5 (CAGE): breadth ubiquitous, TPM avg 2.8033 / max 45.8352, expressed in 1038 samples.

FANTOM5 promoters (3 alternative TSS)

Promoter IDTPM avgSamples expressed
988311.8644880
988330.5740351
988320.3649186

Top tissues by expression

244 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
apex of heartUBERON:000209889.79gold quality
ventricular zoneUBERON:000305385.15gold quality
right lungUBERON:000216783.27gold quality
omental fat padUBERON:001041482.78gold quality
peritoneumUBERON:000235882.71gold quality
adipose tissue of abdominal regionUBERON:000780882.30gold quality
upper lobe of left lungUBERON:000895281.95gold quality
subcutaneous adipose tissueUBERON:000219081.90gold quality
minor salivary glandUBERON:000183081.60gold quality
upper lobe of lungUBERON:000894881.42gold quality
heart left ventricleUBERON:000208481.01gold quality
right hemisphere of cerebellumUBERON:001489080.85gold quality
cerebellar hemisphereUBERON:000224580.83gold quality
cerebellar cortexUBERON:000212980.59gold quality
cardiac ventricleUBERON:000208280.26gold quality
saliva-secreting glandUBERON:000104479.97gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047379.96gold quality
adipose tissueUBERON:000101379.52gold quality
cerebellumUBERON:000203779.26gold quality
left uterine tubeUBERON:000130379.09gold quality
body of uterusUBERON:000985378.69gold quality
ganglionic eminenceUBERON:000402378.63gold quality
body of stomachUBERON:000116178.13gold quality
right lobe of thyroid glandUBERON:000111977.81gold quality
right atrium auricular regionUBERON:000663177.74gold quality
mouth mucosaUBERON:000372977.56gold quality
metanephros cortexUBERON:001053377.48gold quality
mucosa of transverse colonUBERON:000499177.35gold quality
spleenUBERON:000210677.24gold quality
lower esophagus muscularis layerUBERON:003583377.21gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 1.

ExperimentMarker?Max mean expression
E-ANND-3yes4.02

Regulation

Is transcription factor: no

miRNA regulators (miRDB)

5 targeting PKN3, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-444799.8567.812900
HSA-MIR-447299.5666.081478
HSA-MIR-6799-5P99.1465.722093
HSA-MIR-216B-3P98.5567.191223
HSA-MIR-5088-5P97.9764.28487

Literature-anchored findings (GeneRIF, showing 7)

  • PKN3 might represent a preferred target for therapeutic intervention in cancers that lack tumor suppressor PTEN function or depend on chronic activation of phosphoinositide 3-kinase (PMID:15282551)
  • PKN isoforms are not simply redundant in supporting migration, but appear to be linked through isoform specific regulatory domain properties to selective upstream signals. It (PMID:21754995)
  • PKN3 can be considered a novel protein implicated in remodeling the actin-adherens junction, possibly by linking ICAM-1-signaling with actin/AJ dynamics. (PMID:22609186)
  • PKN3 is the major regulator of angiogenesis in humans and mice and tumor metastasis in mice. (PMID:26742562)
  • Steady-state kinetic analysis revealed that PKN1-3 follows a sequential ordered Bi-Bi kinetic mechanism, where peptide substrate binding is preceded by ATP binding. This kinetic mechanism was confirmed by additional kinetic studies for product inhibition and affinity of small molecule inhibitors. (PMID:27919031)
  • a novel interaction of p130Cas with Ser/Thr kinase PKN3, is reported. (PMID:30422386)
  • A Screen for PKN3 Substrates Reveals an Activating Phosphorylation of ARHGAP18. (PMID:33092266)

Cross-species orthologs

11 orthologs

OrganismSymbolGene ID
danio_rerioprkcgENSDARG00000004561
danio_reriopkn3ENSDARG00000079585
mus_musculusPkn3ENSMUSG00000026785
rattus_norvegicusPkn3ENSRNOG00000025892
drosophila_melanogasterPkc53EFBGN0003091
drosophila_melanogasterinaCFBGN0004784
drosophila_melanogasterPknFBGN0020621
drosophila_melanogasterPkcdeltaFBGN0287828
caenorhabditis_elegansWBGENE00004033
caenorhabditis_elegansWBGENE00006599
caenorhabditis_elegansWBGENE00009793

Paralogs (9): PRKCH (ENSG00000027075), PKN2 (ENSG00000065243), PRKCZ (ENSG00000067606), PKN1 (ENSG00000123143), PRKCG (ENSG00000126583), PRKCA (ENSG00000154229), PRKCI (ENSG00000163558), PRKCB (ENSG00000166501), PRKCE (ENSG00000171132)

Protein

Protein identifiers

Serine/threonine-protein kinase N3Q6P5Z2 (reviewed: Q6P5Z2)

Alternative names: Protein kinase PKN-beta, Protein-kinase C-related kinase 3

All UniProt accessions (1): Q6P5Z2

UniProt curated annotations — full annotation on UniProt →

Function. Contributes to invasiveness in malignant prostate cancer.

Subcellular location. Nucleus. Cytoplasm. Perinuclear region.

Tissue specificity. Expressed in prostate tumors and various cancer cell lines. Not expressed in adult tissues.

Post-translational modifications. Autophosphorylated.

Activity regulation. Two specific sites, Thr-718 (activation loop of the kinase domain) and Thr-860 (turn motif), need to be phosphorylated for its full activation.

Domain organisation. The C1 domain does not bind the diacylglycerol (DAG).

Similarity. Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. PKC subfamily.

RefSeq proteins (2): NP_001304855, NP_037487* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR000719Prot_kinase_domDomain
IPR000961AGC-kinase_CDomain
IPR008271Ser/Thr_kinase_ASActive_site
IPR011009Kinase-like_dom_sfHomologous_superfamily
IPR011072HR1_rho-bdDomain
IPR017441Protein_kinase_ATP_BSBinding_site
IPR017892Pkinase_CDomain
IPR035892C2_domain_sfHomologous_superfamily
IPR036274HR1_rpt_sfHomologous_superfamily
IPR037313PKN_HR1_1Domain

Pfam: PF00069, PF00433, PF02185

Catalyzed reactions (Rhea), 2 shown:

  • L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+) (RHEA:17989)
  • L-threonyl-[protein] + ATP = O-phospho-L-threonyl-[protein] + ADP + H(+) (RHEA:46608)

UniProt features (28 total): modified residue 6, domain 5, sequence conflict 5, mutagenesis site 3, binding site 2, sequence variant 2, compositionally biased region 2, chain 1, region of interest 1, active site 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q6P5Z2-F175.110.33

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Catalytic / active sites (1): 684 (proton acceptor)

Ligand- & substrate-binding residues (2): 565–573; 588

Post-translational modifications (6): 171, 544, 548, 718, 722, 860

Mutagenesis-validated functional residues (3):

PositionPhenotype
588abolishes autophosphorylation and catalytic activity.
588abolishes catalytic activity.
718abolishes phosphorylation.

Function

Pathways and Gene Ontology

Reactome pathways

4 pathways

IDPathway
R-HSA-5625740RHO GTPases activate PKNs
R-HSA-8980692RHOA GTPase cycle
R-HSA-9013026RHOB GTPase cycle
R-HSA-9013106RHOC GTPase cycle

MSigDB gene sets: 94 (showing top): GOMF_GTPASE_BINDING, GOBP_AMEBOIDAL_TYPE_CELL_MIGRATION, IRF7_01, GOBP_TISSUE_MIGRATION, BILD_E2F3_ONCOGENIC_SIGNATURE, BACH2_01, TGANTCA_AP1_C, NRF2_Q4, RYTTCCTG_ETS2_B, BARIS_THYROID_CANCER_DN, NFE2_01, AP1FJ_Q2, MARSON_BOUND_BY_FOXP3_UNSTIMULATED, SANSOM_APC_MYC_TARGETS, SCGGAAGY_ELK1_02

GO Biological Process (4): protein phosphorylation (GO:0006468), signal transduction (GO:0007165), epithelial cell migration (GO:0010631), intracellular signal transduction (GO:0035556)

GO Molecular Function (10): protein kinase activity (GO:0004672), protein serine/threonine kinase activity (GO:0004674), diacylglycerol-dependent serine/threonine kinase activity (GO:0004697), ATP binding (GO:0005524), small GTPase binding (GO:0031267), protein serine kinase activity (GO:0106310), nucleotide binding (GO:0000166), protein binding (GO:0005515), kinase activity (GO:0016301), transferase activity (GO:0016740)

GO Cellular Component (5): nucleus (GO:0005634), Golgi apparatus (GO:0005794), cytosol (GO:0005829), perinuclear region of cytoplasm (GO:0048471), cytoplasm (GO:0005737)

Reactome top-level categories

Rollup of top-2 pathways:

CategoryPathways
RHO GTPase cycle3
RHO GTPase Effectors1

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
cytoplasm3
cellular anatomical structure3
intracellular anatomical structure2
protein kinase activity2
intracellular membrane-bounded organelle2
phosphorylation1
protein modification process1
cell communication1
cellular process1
signaling1
regulation of cellular process1
cellular response to stimulus1
ameboidal-type cell migration1
epithelium migration1
signal transduction1
kinase activity1
phosphotransferase activity, alcohol group as acceptor1
catalytic activity, acting on a protein1
protein serine/threonine kinase activity1
adenyl ribonucleotide binding1
purine ribonucleoside triphosphate binding1
GTPase binding1
nucleoside phosphate binding1
heterocyclic compound binding1
binding1
transferase activity, transferring phosphorus-containing groups1
catalytic activity1
endomembrane system1

Protein interactions and networks

STRING

1242 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
PKN3ARHGAP10A1A4S6934
PKN3ARHGAP26Q9UNA1895
PKN3RHOCP08134750
PKN3RHOAP06749699
PKN3SRCP12931634
PKN3RRM2P31350578
PKN3PTK2Q05397512
PKN3GTPBP4Q9BZE4497
PKN3NCK2O43639493
PKN3ARHGAP1Q07960487
PKN3RAC1P15154466
PKN3CCDC8Q9H0W5457
PKN3CDC42P21181451
PKN3NCK1P16333442
PKN3FGD6Q6ZV73432

IntAct

176 interactions, top by confidence:

ABTypeScore
RHOAARHGEF11psi-mi:“MI:0914”(association)0.900
KRT31HGSpsi-mi:“MI:0914”(association)0.780
PKN3ARHGAP26psi-mi:“MI:0915”(physical association)0.680
PKN3ARHGAP10psi-mi:“MI:0915”(physical association)0.680
ARHGAP26PKN3psi-mi:“MI:0915”(physical association)0.680
PKN3ARHGAP10psi-mi:“MI:0914”(association)0.680
KRT31PKN3psi-mi:“MI:0915”(physical association)0.670
EFNB3DENND11psi-mi:“MI:0914”(association)0.640
MTUS2PKN3psi-mi:“MI:0915”(physical association)0.560
PKN3PNMA1psi-mi:“MI:0915”(physical association)0.560
PKN3TFIP11psi-mi:“MI:0915”(physical association)0.560
PKN3VPS52psi-mi:“MI:0915”(physical association)0.560
GOLGA2PKN3psi-mi:“MI:0915”(physical association)0.560
PLD1PKN3psi-mi:“MI:0915”(physical association)0.540
PLD1PKN3psi-mi:“MI:0407”(direct interaction)0.540
rho-1PKN3psi-mi:“MI:0407”(direct interaction)0.540
PKN3rho-1psi-mi:“MI:0915”(physical association)0.540
HNRNPH2PLOD2psi-mi:“MI:0914”(association)0.530
MANSC1KLRG2psi-mi:“MI:0914”(association)0.530
MAS1POTEFpsi-mi:“MI:0914”(association)0.530
HAVCR2TCAF2psi-mi:“MI:0914”(association)0.530
VSIG4TCAF2psi-mi:“MI:0914”(association)0.530

BioGRID (228): PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS), PKN3 (Affinity Capture-MS)

ESM2 similar proteins: A1A4I4, A1A5B6, A4D2P6, B2DCZ9, B4F7F3, O00192, O08773, O08874, O08908, O35465, O43566, O62683, O75808, O95049, P70268, P97492, Q0QWG9, Q12851, Q14164, Q14318, Q16512, Q16513, Q3B7U9, Q3KR56, Q3MII6, Q3UFB7, Q5FVC2, Q60875, Q61161, Q63433, Q63788, Q6P5Z2, Q6PFQ7, Q6V7V2, Q6ZT62, Q7Z5H3, Q865S3, Q8BWW9, Q8IYK8, Q8K045

Diamond homologs: A0A509AKL0, A1A4I4, A5K0N4, A7MBL8, A8XJQ6, A8XNJ6, A8XW88, F4HYG2, G1X456, J9W0G9, O42632, O43930, O77676, P00516, P00517, P04409, P05131, P05132, P05383, P05696, P05986, P06244, P06245, P0C605, P10102, P10665, P10666, P11792, P12370, P12688, P16911, P16912, P17252, P17612, P18652, P18654, P18961, P20444, P21137, P22612

SIGNOR signaling

5 interactions.

AEffectBMechanism
BCAR1“up-regulates activity”PKN3binding
PKN3“up-regulates activity”ARHGAP18phosphorylation
PKN3unknownBCAR1phosphorylation

Enriched among interaction partners

Reactome pathways and GO biological processes over-represented among this gene’s 190 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.

Reactome pathways:

PathwayPartnersFoldFDR
RHOJ GTPase cycle611.7×7e-04
RHOQ GTPase cycle610.6×1e-03
RHOB GTPase cycle710.5×4e-04
RHOD GTPase cycle59.9×4e-03
RHOC GTPase cycle68.5×2e-03
PKR-mediated signaling68.2×3e-03
EML4 and NUDC in mitotic spindle formation98.1×3e-04
Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal77.9×1e-03

GO biological processes:

GO termPartnersFoldFDR
endocytic recycling711.9×1e-03
mitotic cell cycle97.7×1e-03
protein transport154.2×1e-03

Disease & clinical

Clinical variants and AI predictions

ClinVar

223 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic0
Likely pathogenic0
Uncertain significance189
Likely benign8
Benign0

Top pathogenic / likely-pathogenic (0)

SpliceAI

3315 predictions. Top by Δscore:

VariantEffectΔscore
9:128705540:GCTG:Gdonor_gain1.0000
9:128706702:T:TAacceptor_gain1.0000
9:128706703:G:Aacceptor_gain1.0000
9:128706710:T:Gacceptor_gain1.0000
9:128706711:A:AGacceptor_gain1.0000
9:128706711:AGG:Aacceptor_loss1.0000
9:128706712:G:Aacceptor_loss1.0000
9:128706712:G:GGacceptor_gain1.0000
9:128706712:GGA:Gacceptor_gain1.0000
9:128706712:GGAGA:Gacceptor_gain1.0000
9:128706807:G:GGdonor_gain1.0000
9:128706823:AG:Adonor_loss1.0000
9:128706825:G:Cdonor_loss1.0000
9:128706826:T:Adonor_loss1.0000
9:128706890:CCACA:Cacceptor_loss1.0000
9:128706891:CACAG:Cacceptor_loss1.0000
9:128706893:CA:Cacceptor_loss1.0000
9:128706894:A:AGacceptor_gain1.0000
9:128706894:A:ATacceptor_loss1.0000
9:128706894:AG:Aacceptor_gain1.0000
9:128706895:G:GGacceptor_gain1.0000
9:128706895:GG:Gacceptor_gain1.0000
9:128707003:G:GTdonor_gain1.0000
9:128707018:GC:Gdonor_gain1.0000
9:128707019:C:Gdonor_gain1.0000
9:128707020:TGAG:Tdonor_loss1.0000
9:128707021:GAGG:Gdonor_loss1.0000
9:128707023:GGTC:Gdonor_loss1.0000
9:128707024:G:Adonor_loss1.0000
9:128707217:TGCA:Tacceptor_loss1.0000

AlphaMissense

5701 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
9:128718551:A:CD684A0.999
9:128718551:A:TD684V0.998
9:128719733:T:CF725L0.997
9:128719735:C:AF725L0.997
9:128719735:C:GF725L0.997
9:128719787:T:AW743R0.997
9:128719787:T:CW743R0.997
9:128715416:A:CK588N0.996
9:128715416:A:TK588N0.996
9:128718354:T:CL672P0.996
9:128718551:A:GD684G0.996
9:128718618:C:GC706W0.996
9:128719784:T:AW742R0.996
9:128719784:T:CW742R0.996
9:128720227:C:AR801S0.996
9:128718387:G:TR683M0.995
9:128718552:C:AD684E0.995
9:128718552:C:GD684E0.995
9:128718605:A:TD702V0.995
9:128719715:T:CF719L0.995
9:128719717:C:AF719L0.995
9:128719717:C:GF719L0.995
9:128719789:G:CW743C0.995
9:128719789:G:TW743C0.995
9:128718387:G:CR683T0.994
9:128718558:G:CK686N0.994
9:128718558:G:TK686N0.994
9:128715415:A:TK588I0.993
9:128716758:A:TE607V0.993
9:128718554:T:CL685P0.993

dbSNP variants (sampled 300 via entrez): RS1000044013 (9:128701657 C>G,T), RS1000281213 (9:128712804 G>T), RS1000341417 (9:128712633 G>A), RS1000648025 (9:128704443 C>A), RS1000773464 (9:128710509 T>G), RS1000886318 (9:128713955 G>A), RS1001018590 (9:128704224 C>A,T), RS1001235314 (9:128717091 A>G), RS1001272842 (9:128713793 G>A,C), RS1001453760 (9:128705153 C>A,T), RS1001601733 (9:128712201 C>T), RS1001688137 (9:128718546 C>T), RS1001821792 (9:128709538 G>A,C), RS1001906061 (9:128710113 A>G), RS1001957290 (9:128704959 G>A)

Disease associations

OMIM: gene MIM:610714 | disease phenotypes:

GenCC curated gene-disease

Mondo (0):

Orphanet (0):

HPO phenotypes

0 total (0 of 0 shown, HPO-id order):

GWAS associations

16 associations (top):

StudyTraitp-value
GCST001762_133Obesity-related traits6.000000e-06
GCST001959_7Eating disorders (purging via substances)5.000000e-06
GCST002115_14Axial length6.000000e-06
GCST004607_111Plateletcrit6.000000e-11
GCST005951_65Body mass index5.000000e-09
GCST006019_34Gamma glutamyl transferase levels8.000000e-10
GCST009720_47Asthma2.000000e-08
GCST010204_216Low density lipoprotein cholesterol levels3.000000e-14
GCST010243_137Apolipoprotein B levels5.000000e-09
GCST010245_124LDL cholesterol levels3.000000e-12
GCST011349_13Gamma glutamyl transferase levels6.000000e-09
GCST90002398_161Neutrophil count8.000000e-16
GCST90002400_389Plateletcrit1.000000e-27
GCST90002402_73Platelet count2.000000e-19
GCST90002407_76White blood cell count2.000000e-15
GCST90013407_31Liver enzyme levels (gamma-glutamyl transferase)5.000000e-59

EFO canonical traits (9, from GWAS)

EFO IDTrait name
EFO:0004626IGFBP-3 measurement
EFO:0005318axial length measurement
EFO:0007985platelet crit
EFO:0004340body mass index
EFO:0004532serum gamma-glutamyl transferase measurement
EFO:0004611low density lipoprotein cholesterol measurement
EFO:0004615apolipoprotein B measurement
EFO:0004833neutrophil count
EFO:0004309platelet count

Drugs & pharmacology

Drug and pharmacology data

Is drug target: yes

ChEMBL targets (1): CHEMBL3627581 (SINGLE PROTEIN)

Molecules with ChEMBL bioactivity

3 molecules (phase ≥1), by development phase (incl. off-target/promiscuous compounds). Patent mentions across the top 20 by phase: 12,330 (via chembl_molecule»patent_compound — counts attach to the compound, not the gene–compound relationship, so off-target/promiscuous molecules can dominate).

MoleculeNamePhasePatents
CHEMBL38380FASUDIL311,953
CHEMBL603469LESTAURTINIB3
CHEMBL551064AEW-5411377

PharmGKB: 1 entry (VIP=true, CPIC=false)

GtoPdb / IUPHAR curated pharmacology

(IUPHAR/BPS Guide to Pharmacology — expert-curated)

Target class: enzyme — Protein kinase N (PKN) family

ChEMBL bioactivities

13 potent at pChembl≥5 of 13 total, top 11 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).

pChemblTypeValueUnitMolecule
8.11IC507.8nMSTAUROSPORINE
7.94IC5011.6nMSTAUROSPORINE
7.89Kd13nMCHEMBL3991933
7.88IC5013.2nMSTAUROSPORINE
7.64Kd23nMAEW-541
7.00Kd99nMFASUDIL
5.86Kd1374nMLESTAURTINIB
5.85IC501400nMCHEMBL5090394
5.76Kd1738nMCHEMBL5653589
5.76ED501738nMCHEMBL5653589
5.17IC506700nMCHEMBL5090394

PubChem BioAssay actives

10 with measured affinity, of 177 total; 7 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.

CompoundAssayTypeValueUnit
(2S,3R,4R,6R)-3-methoxy-2-methyl-4-(methylamino)-29-oxa-1,7,17-triazaoctacyclo[12.12.2.12,6.07,28.08,13.015,19.020,27.021,26]nonacosa-8,10,12,14,19,21,23,25,27-nonaen-16-one1715194: Inhibition of human PKN3 using KKLNRTLSVA as substrate by [gamma-33P]-ATP assayic500.0078uM
3-(2-methyl-1,3-benzoxazol-5-yl)-1-propan-2-ylpyrazolo[3,4-d]pyrimidin-4-amine1425119: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.0130uM
7-[3-(azetidin-1-yl)cyclobutyl]-5-(3-phenylmethoxyphenyl)pyrrolo[2,3-d]pyrimidin-4-amine1425119: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.0230uM
5-(1,4-diazepan-1-ylsulfonyl)isoquinoline1425119: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd0.0990uM
(15S,16S,18R)-16-hydroxy-16-(hydroxymethyl)-15-methyl-28-oxa-4,14,19-triazaoctacyclo[12.11.2.115,18.02,6.07,27.08,13.019,26.020,25]octacosa-1,6,8,10,12,20,22,24,26-nonaen-3-one1425119: Kinobeads (epsilon), multiple immobilized ATP-competitive broad spectrum kinase inhibitors, used to assess residual binding of ~300 proteins simultaneously from cell lysate in the presence of a compound. Quantitative readout performed by mass spectrometry.kd1.3740uM
8-[(5-amino-1,3-dioxan-2-yl)methyl]-6-[2-chloro-4-(3-fluoro-2-pyridinyl)phenyl]-2-(methylamino)pyrido[2,3-d]pyrimidin-7-one1895124: Inhibition of human PKN3 by radiometric PanQinase activity assayic501.4000uM
4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide2149020: Binding affinity to human PKN3 incubated for 45 mins by Kinobead based pull down assaykd1.7377uM

CTD chemical–gene interactions

27 total (human), top 27 by PubMed support.

ChemicalActions (top 5)PubMed papers
Benzo(a)pyreneaffects methylation, increases methylation2
Cadmium Chloridedecreases expression, increases expression2
GSK-J4decreases expression1
bufotalinincreases expression1
cobaltous chloridedecreases expression1
tobacco tardecreases expression1
bleomycetindecreases expression1
muconaldehydedecreases expression1
di-n-butylphosphoric acidaffects expression1
coniferaldehydeincreases phosphorylation, increases expression, affects localization, decreases reaction1
monomethylarsonous aciddecreases expression1
(+)-JQ1 compounddecreases expression1
Temozolomideincreases expression1
Sunitinibdecreases expression1
Troglitazonedecreases expression1
Leflunomidedecreases expression1
Acetaminophendecreases expression1
Caffeinedecreases phosphorylation1
Chelating Agentsdecreases expression, affects binding1
Cisplatindecreases expression1
Copperaffects binding, decreases expression1
Rotenoneincreases expression1
Smokedecreases expression1
Thimerosaldecreases expression1
Tobacco Smoke Pollutiondecreases expression1
Valproic Aciddecreases expression, increases methylation1
Cyclosporinedecreases expression1

ChEMBL screening assays

28 unique, capped per target: 28 binding

Representative assays (with source publication via chembl_document):

Assay IDTypeDescriptionSource paper
CHEMBL3630944BindingInhibition of PKN3 (unknown origin) at 10 uM after 120 mins P33 radiolabeled kinase activity assayCrystal structures of human RIP2 kinase catalytic domain complexed with ATP-competitive inhibitors: Foundations for understanding inhibitor selectivity. — Bioorg Med Chem

Cellosaurus cell lines

6 cell lines: 5 cancer cell line, 1 transformed cell line

First 10 cell lines (id-ordered, not curated):

CellosaurusNameCategorySex
CVCL_D7XQUbigene A-549 PKN3 KOCancer cell lineMale
CVCL_D8T6Ubigene HCT 116 PKN3 KOCancer cell lineMale
CVCL_D9NQUbigene HEK293 PKN3 KOTransformed cell lineFemale
CVCL_E0L2Ubigene HeLa PKN3 KOCancer cell lineFemale
CVCL_TE03HAP1 PKN3 (-) 1Cancer cell lineMale
CVCL_TE04HAP1 PKN3 (-) 2Cancer cell lineMale

Clinical trials (associated diseases)

0 trials via MONDO — disease-level, not drug-specific.

  • Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): eating disorder