PAK2 — P21 (RAC1) activated kinase 2
PAK2 belongs to a gene co-expression module in 5 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.
PAK2's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Gamma-delta T cells | Rho GTPase Signaling Cytoskeletal | APOBR, ARHGEF3, ATP6V1H, BRCC3, CD46, CNDP2, CYB5R4, DCTN5 +14 more | |
| Innate lymphoid cells | Actin Cytoskeleton Dynamics Cytoskeleton & motility | ACTN4, ALDH9A1, APBB1IP, ARHGAP10, CDC37, CXXC5, FAM136A, FERMT3 +26 more | View in SCUBA |
| Macrophages | RNA Processing Regulation Housekeeping | ACBD3, AQR, ARCN1, BFAR, BNIP3L, CCNI, CCNK, DIS3 +15 more | View in SCUBA |
| Mucosal-associated invariant T cell | Integrin Actin Adhesion migration & adhesion | ACTR2, ANKRD10, ATP2B1, DDX46, HP1BP3, HPS3, JAK1, LINS1 +11 more | |
| Pericytes | Golgi Vesicular Trafficking Vesicular traficking | APP, CLIC4, CTNNA1, EMP2, GNAS, PTTG1IP, SERINC3, TGOLN2 +1 more | View in SCUBA |
About the gene
| Synonyms | PAK65, PAKgamma |
|---|---|
| Chromosome | 3: 196739857-196832647 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Disease related genes, Enzymes, Plasma proteins, Potential drug targets, Predicted intracellular proteins, RAS pathway related proteins |
| Molecular function | Allosteric enzyme, Kinase, Serine/threonine-protein kinase, Transferase |
| Biological process | Apoptosis, Growth regulation, Host-virus interaction |
Function
Serine/threonine protein kinase that plays a role in a variety of different signaling pathways including cytoskeleton regulation, cell motility, cell cycle progression, apoptosis or proliferation. Acts as a downstream effector of the small GTPases CDC42 and RAC1. Activation by the binding of active CDC42 and RAC1 results in a conformational change and a subsequent autophosphorylation on several serine and/or threonine residues. Full- length PAK2 stimulates cell survival and cell growth. Phosphorylates MAPK4 and MAPK6 and activates the downstream target MAPKAPK5, a regulator of F-actin polymerization and cell migration. Phosphorylates JUN and plays an important role in EGF-induced cell proliferation. Phosphorylates many other substrates including histone H4 to promote assembly of H3.3 and H4 into nucleosomes, BAD, ribosomal protein S6, or MBP. Phosphorylates CASP7, thereby preventing its activity. Additionally, associates with ARHGEF7 and GIT1 to perform kinase-independent functions such as spindle orientation control during mitosis. On the other hand, apoptotic stimuli such as DNA damage lead to caspase-mediated cleavage of PAK2, generating PAK-2p34, an active p34 fragment that translocates to the nucleus and promotes cellular apoptosis involving the JNK signaling pathway. Caspase-activated PAK2 phosphorylates MKNK1 and reduces cellular translation.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.