MAPK9 (mitogen-activated protein kinase 9)

2003-01-01   Fei Chen  

Health Effects Laboratory Division, NIOSH, 1095 Willowdale Rd, Morgantown, WV 26505, USA

Identity

HGNC
LOCATION
5q35.3
LOCUSID
ALIAS
JNK-55,JNK2,JNK2A,JNK2ALPHA,JNK2B,JNK2BETA,PRKM9,SAPK,SAPK1a,p54a,p54aSAPK
FUSION GENES

DNA/RNA

Description

The JNK2 gene maps on chromosome 5q35 spanning 58494bp. It contains 17 confirmed introns, 14 of which are alternative.

Transcription

By alternative splicing, JNK2 gene encodes 12 types of transcripts that translate to 12 distinct JNK2 isoforms. The molecular weight of JNK2 is about 55 kD.

Proteins

Description

All JNK proteins contain a protein kinase domain that belong to a very extensive family of eukaryotic serine/threonine proteins kinase. A number of conserved regions have been identified in the catalytic domain of JNKs. In the N-terminal extremity of the catalytic domain there is a glycine-rich motif in the vicinity of a lysine residue, which has been shown to be involved in ATP binding. A conserved aspartic acid reside that is critical for the catalytic activity of kinase has also been identified in the central part of the catalytic domain.

Expression

JNK1 is ubiquitously expressed.

Localisation

Cytoplasmic and nuclear

Function

The members of JNK family act as an integration point for multiple intracellular biochemical signals governing a wide variety of cellular processes such as proliferation, differentiation, apoptosis, migration, transcriptional regulation, and development. JNK targets specific transcription factors and thus mediates immediate-early gene expression in response to various stress signals including ultraviolet (UV) radiation, oxidative stress, protein malfolding in endoplasmic reticulum, osmotical shock, and inflammatory mediators. These transcription factors include AP-1, ATF-2, Elk-1, p53, etc... Several upstream dual specific protein kinases, such as MKK4/SEK1 and MKK7, can activate JNK through phosphorylation of the conversed Thr-Pro-Tyr motif on JNK proteins. In mammalian cells, activated JNK can phosphorylate the N-terminus of c-Jun, which contains both JNK docking site and JNK phosphorylation site (ser63 and ser73), orJunD, which lacks a JNK docking site but contains a JNK phosphorylation site. JNK is unable to phosphorylate JunB due to the lack of a JNK phosphorylation site inJunB, despite there is a functional JNK docking site. Comparison of the binding activity of JNK isoforms demonstrates that JNK2 bind c-Jun approximately 25 times more efficiently than did JNK1. Therefore, individual members of the JNK family may selectively target specific transcription factors in vivo. One of the most important functions of JNK is the regulation of apoptosis. Emerging evidence indicates that JNK activation is obligatory for apoptosis induced by both receptor-mediated "extrinsic" pathway or mitochondria-mediated "intrinsic" pathway. JNK activation may contribute to the initiation of Fas-induced apoptosis, possibly through the amplification of autocrine or paracrine Fas signaling by JNK-dependent Fas ligand (FasL) gene expression. In addition, JNK has been indicated in the apoptosis induced by Daxx, a Fas death domain (FADD) interaction protein. Through its serine/threonine kinase activity, JNK may contribute to mitochondria-mediated apoptosis by phosphorylating pro- or anti-apoptoticBcl-2 family proteins. Finally, JNK has also been indicated as an important kinase phosphorylating p53 and subsequently facilitating p53-dependent apoptotic responses. Sustained JNK activation may be responsible for the enhanced apoptosis observed in RelA-/- or Ikkb-/- mouse embryonic fibroblasts treated with TNFa. It was suggested that deficiency of RelA or IKKb caused a decreased expression of XIAP or GADD45b, which may antagonize the activation of JNK activation. However, such speculation contradicts the previous observations indicating that both GADD45b and XIAP are activators, rather than inhibitors for JNK activation. Moreover, gene profiling in our recent studies indicated no substantial difference of basal or inducible GADD45b and XIAP mRNA in wild type cells and Ikkb-/- cells.

Implicated in

Entity name
Obesity, insulin resistance, neurodegenerative diseases, inflammation, cancer.

Article Bibliography

Pubmed IDLast YearTitleAuthors

Other Information

Locus ID:

NCBI: 5601
MIM: 602896
HGNC: 6886
Ensembl: ENSG00000050748

Variants:

dbSNP: 5601
ClinVar: 5601
TCGA: ENSG00000050748
COSMIC: MAPK9

RNA/Proteins

Gene IDTranscript IDUniprot
ENSG00000050748ENST00000343111P45984
ENSG00000050748ENST00000347470J3KNK1
ENSG00000050748ENST00000393360P45984
ENSG00000050748ENST00000393362D7R528
ENSG00000050748ENST00000397072D7R528
ENSG00000050748ENST00000425491P45984
ENSG00000050748ENST00000452135P45984
ENSG00000050748ENST00000455781P45984
ENSG00000050748ENST00000523583E5RJ57
ENSG00000050748ENST00000539014D7R525

Expression (GTEx)

0
10
20
30
40
50
60
70
80
90
100

Pathways

PathwaySourceExternal ID
MAPK signaling pathwayKEGGko04010
ErbB signaling pathwayKEGGko04012
Autophagy - animalKEGGko04140
ApoptosisKEGGko04210
Wnt signaling pathwayKEGGko04310
Focal adhesionKEGGko04510
Tight junctionKEGGko04530
Toll-like receptor signaling pathwayKEGGko04620
T cell receptor signaling pathwayKEGGko04660
Fc epsilon RI signaling pathwayKEGGko04664
Insulin signaling pathwayKEGGko04910
GnRH signaling pathwayKEGGko04912
Progesterone-mediated oocyte maturationKEGGko04914
Adipocytokine signaling pathwayKEGGko04920
Type II diabetes mellitusKEGGko04930
Epithelial cell signaling in Helicobacter pylori infectionKEGGko05120
Colorectal cancerKEGGko05210
Pancreatic cancerKEGGko05212
MAPK signaling pathwayKEGGhsa04010
ErbB signaling pathwayKEGGhsa04012
Autophagy - animalKEGGhsa04140
ApoptosisKEGGhsa04210
Wnt signaling pathwayKEGGhsa04310
Focal adhesionKEGGhsa04510
Tight junctionKEGGhsa04530
Toll-like receptor signaling pathwayKEGGhsa04620
T cell receptor signaling pathwayKEGGhsa04660
Fc epsilon RI signaling pathwayKEGGhsa04664
Insulin signaling pathwayKEGGhsa04910
GnRH signaling pathwayKEGGhsa04912
Adipocytokine signaling pathwayKEGGhsa04920
Type II diabetes mellitusKEGGhsa04930
Epithelial cell signaling in Helicobacter pylori infectionKEGGhsa05120
ShigellosisKEGGhsa05131
Pathways in cancerKEGGhsa05200
Colorectal cancerKEGGhsa05210
Pancreatic cancerKEGGhsa05212
Neurotrophin signaling pathwayKEGGko04722
Neurotrophin signaling pathwayKEGGhsa04722
RIG-I-like receptor signaling pathwayKEGGko04622
RIG-I-like receptor signaling pathwayKEGGhsa04622
Progesterone-mediated oocyte maturationKEGGhsa04914
NOD-like receptor signaling pathwayKEGGko04621
NOD-like receptor signaling pathwayKEGGhsa04621
Chagas disease (American trypanosomiasis)KEGGko05142
Chagas disease (American trypanosomiasis)KEGGhsa05142
Protein processing in endoplasmic reticulumKEGGko04141
Protein processing in endoplasmic reticulumKEGGhsa04141
ToxoplasmosisKEGGko05145
ToxoplasmosisKEGGhsa05145
Hepatitis CKEGGko05160
Hepatitis CKEGGhsa05160
Osteoclast differentiationKEGGko04380
Osteoclast differentiationKEGGhsa04380
TuberculosisKEGGko05152
TuberculosisKEGGhsa05152
Influenza AKEGGko05164
Influenza AKEGGhsa05164
PertussisKEGGko05133
PertussisKEGGhsa05133
Salmonella infectionKEGGko05132
Salmonella infectionKEGGhsa05132
Herpes simplex infectionKEGGko05168
Herpes simplex infectionKEGGhsa05168
Dopaminergic synapseKEGGko04728
Dopaminergic synapseKEGGhsa04728
Retrograde endocannabinoid signalingKEGGhsa04723
Retrograde endocannabinoid signalingKEGGko04723
Epstein-Barr virus infectionKEGGhsa05169
Epstein-Barr virus infectionKEGGko05169
Hepatitis BKEGGhsa05161
TNF signaling pathwayKEGGhsa04668
TNF signaling pathwayKEGGko04668
Prolactin signaling pathwayKEGGhsa04917
Prolactin signaling pathwayKEGGko04917
Non-alcoholic fatty liver disease (NAFLD)KEGGhsa04932
Non-alcoholic fatty liver disease (NAFLD)KEGGko04932
Ras signaling pathwayKEGGhsa04014
FoxO signaling pathwayKEGGhsa04068
Inflammatory mediator regulation of TRP channelsKEGGhsa04750
Inflammatory mediator regulation of TRP channelsKEGGko04750
cAMP signaling pathwayKEGGhsa04024
cAMP signaling pathwayKEGGko04024
Choline metabolism in cancerKEGGhsa05231
Choline metabolism in cancerKEGGko05231
MAPK (JNK) signalingKEGGhsa_M00688
MAPK (JNK) signalingKEGGM00688
Sphingolipid signaling pathwayKEGGhsa04071
Sphingolipid signaling pathwayKEGGko04071
Immune SystemREACTOMER-HSA-168256
Innate Immune SystemREACTOMER-HSA-168249
Toll-Like Receptors CascadesREACTOMER-HSA-168898
Toll Like Receptor 10 (TLR10) CascadeREACTOMER-HSA-168142
MyD88 cascade initiated on plasma membraneREACTOMER-HSA-975871
MAP kinase activation in TLR cascadeREACTOMER-HSA-450294
JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1REACTOMER-HSA-450321
MAPK targets/ Nuclear events mediated by MAP kinasesREACTOMER-HSA-450282
Activation of the AP-1 family of transcription factorsREACTOMER-HSA-450341
Toll Like Receptor 3 (TLR3) CascadeREACTOMER-HSA-168164
MyD88-independent TLR3/TLR4 cascadeREACTOMER-HSA-166166
TRIF-mediated TLR3/TLR4 signalingREACTOMER-HSA-937061
Toll Like Receptor 5 (TLR5) CascadeREACTOMER-HSA-168176
Toll Like Receptor 7/8 (TLR7/8) CascadeREACTOMER-HSA-168181
MyD88 dependent cascade initiated on endosomeREACTOMER-HSA-975155
TRAF6 mediated induction of NFkB and MAP kinases upon TLR7/8 or 9 activationREACTOMER-HSA-975138
Toll Like Receptor 9 (TLR9) CascadeREACTOMER-HSA-168138
Toll Like Receptor 4 (TLR4) CascadeREACTOMER-HSA-166016
Activated TLR4 signallingREACTOMER-HSA-166054
MyD88:Mal cascade initiated on plasma membraneREACTOMER-HSA-166058
Toll Like Receptor 2 (TLR2) CascadeREACTOMER-HSA-181438
Toll Like Receptor TLR1:TLR2 CascadeREACTOMER-HSA-168179
Toll Like Receptor TLR6:TLR2 CascadeREACTOMER-HSA-168188
Fc epsilon receptor (FCERI) signalingREACTOMER-HSA-2454202
FCERI mediated MAPK activationREACTOMER-HSA-2871796
Cellular responses to stressREACTOMER-HSA-2262752
Cellular SenescenceREACTOMER-HSA-2559583
Oxidative Stress Induced SenescenceREACTOMER-HSA-2559580
Insulin resistanceKEGGhsa04931
AGE-RAGE signaling pathway in diabetic complicationsKEGGko04933
AGE-RAGE signaling pathway in diabetic complicationsKEGGhsa04933
Apoptosis - multiple speciesKEGGko04215
Apoptosis - multiple speciesKEGGhsa04215
Endocrine resistanceKEGGko01522
Endocrine resistanceKEGGhsa01522
Th1 and Th2 cell differentiationKEGGko04658
Th1 and Th2 cell differentiationKEGGhsa04658
Th17 cell differentiationKEGGko04659
Th17 cell differentiationKEGGhsa04659
IL-17 signaling pathwayKEGGko04657
Fluid shear stress and atherosclerosisKEGGko05418
IL-17 signaling pathwayKEGGhsa04657
Fluid shear stress and atherosclerosisKEGGhsa05418
Mitophagy - animalKEGGko04137
Mitophagy - animalKEGGhsa04137

Protein levels (Protein atlas)

Not detected
Low
Medium
High

PharmGKB

Entity IDNameTypeEvidenceAssociationPKPDPMIDs
PA284MAP2K7GenePathwayassociated20124951
PA30584MAP2K1GenePathwayassociated20124951
PA30587MAP2K2GenePathwayassociated20124951
PA30588MAP2K3GenePathwayassociated20124951
PA30589MAP2K4GenePathwayassociated20124951
PA30590MAP2K5GenePathwayassociated20124951
PA30591MAP2K6GenePathwayassociated20124951
PA7000sorafenibChemicalPathwayassociated20124951

References

Pubmed IDYearTitleCitations
381591712024Overexpression of circZNF720 Inhibits Hepatocellular Carcinoma Progression by Regulating miR-421/MAPK9.0
381638742024Circ_MAPK9 promotes STAT3 and LDHA expression by silencing miR-642b-3p and affects the progression of hepatocellular carcinoma.1
381591712024Overexpression of circZNF720 Inhibits Hepatocellular Carcinoma Progression by Regulating miR-421/MAPK9.0
381638742024Circ_MAPK9 promotes STAT3 and LDHA expression by silencing miR-642b-3p and affects the progression of hepatocellular carcinoma.1
379578652023JNK2 Promotes Progression of Esophageal Squamous Cell Carcinoma via Inhibiting Axin2.0
379578652023JNK2 Promotes Progression of Esophageal Squamous Cell Carcinoma via Inhibiting Axin2.0
335268442022c-Jun N-terminal kinase 2 suppresses pancreatic cancer growth and invasion and is opposed by c-Jun N-terminal kinase 1.6
335268442022c-Jun N-terminal kinase 2 suppresses pancreatic cancer growth and invasion and is opposed by c-Jun N-terminal kinase 1.6
345025562021The Roles of c-Jun N-Terminal Kinase (JNK) in Infectious Diseases.16
348996812021miR-221-5p-Mediated Downregulation of JNK2 Aggravates Acute Lung Injury.7
349629182021c-Jun N-terminal kinase (JNK) signaling contributes to cystic burden in polycystic kidney disease.5
345025562021The Roles of c-Jun N-Terminal Kinase (JNK) in Infectious Diseases.16
348996812021miR-221-5p-Mediated Downregulation of JNK2 Aggravates Acute Lung Injury.7
349629182021c-Jun N-terminal kinase (JNK) signaling contributes to cystic burden in polycystic kidney disease.5
310633552019JNK2 Is Required for the Tumorigenic Properties of Melanoma Cells.11

Citation

Fei Chen

MAPK9 (mitogen-activated protein kinase 9)

Atlas Genet Cytogenet Oncol Haematol. 2003-01-01

Online version: http://atlasgeneticsoncology.org/gene/426/haematological-explorer/cancer-prone-explorer/favicon/favicon-32x32.png