MAP4K2 — Mitogen-activated protein kinase kinase kinase kinase 2
MAP4K2 belongs to a gene co-expression module in 2 of 28 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
MAP4K2's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Endothelial | EC Cytoskeletal Scaffold Cytoskeletal | ADD3, ANTXR2, CTSD, EPB41L2, FXYD6, GYPC, NRP2, RECK +2 more | View in SCUBA |
| Lymphatic endothelial | Lymphangiogenesis ECM endothelial development | ARHGAP18, CEP68, CFI, DIPK2B, EGFL7, ELK3, ELN, FLT4 +10 more | View in SCUBA |
About the gene
| Synonyms | BL44, GCK, RAB8IP |
|---|---|
| Chromosome | 11: 64784918-64803241 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Enzymes, Plasma proteins, Predicted intracellular proteins |
| Molecular function | Kinase, Serine/threonine-protein kinase, Transferase |
| Biological process | Immunity, Innate immunity, Stress response |
Function
Serine/threonine-protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Acts as a MAPK kinase kinase kinase (MAP4K) and is an upstream activator of the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway and to a lesser extent of the p38 MAPKs signaling pathway. Required for the efficient activation of JNKs by TRAF6- dependent stimuli, including pathogen-associated molecular patterns (PAMPs) such as polyinosine-polycytidine (poly(IC)), lipopolysaccharides (LPS), lipid A, peptidoglycan (PGN), or bacterial flagellin. To a lesser degree, IL-1 and engagement of CD40 also stimulate MAP4K2-mediated JNKs activation. The requirement for MAP4K2/GCK is most pronounced for LPS signaling, and extends to LPS stimulation of c-Jun phosphorylation and induction of IL-8. Enhances MAP3K1 oligomerization, which may relieve N-terminal mediated MAP3K1 autoinhibition and lead to activation following autophosphorylation. Also mediates the SAP/JNK signaling pathway and the p38 MAPKs signaling pathway through activation of the MAP3Ks MAP3K10/MLK2 and MAP3K11/MLK3. May play a role in the regulation of vesicle targeting or fusion. regulation of vesicle targeting or fusion. Activator of the Hippo signaling pathway which plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. MAP4Ks act in parallel to and are partially redundant with STK3/MST2 and STK4/MST2 in the phosphorylation and activation of LATS1/2, and establish MAP4Ks as components of the expanded Hippo pathway.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.