OXSR1 — Oxidative stress responsive kinase 1
OXSR1 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.
OXSR1's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Macrophages | Endosomal Vesicle Trafficking Vesicular traficking | ADAM17, AP3B1, ARFGEF1, ARID1B, ARK2N, ASAP1, ATF6, ATP11A +48 more | View in SCUBA |
| Neutrophils | NF-κB Inflammatory Transcription Inflammatory | BID, C9orf72, DENND5A, ELL2, ETF1, N4BP1, NFE2L2, NFKB1 +10 more |
About the gene
| Synonyms | KIAA1101, OSR1 |
|---|---|
| Chromosome | 3: 38165089-38255484 |
| Predicted location | Intracellular |
| Essential gene | No |
| Protein class | Enzymes, Predicted intracellular proteins |
| Molecular function | Kinase, Serine/threonine-protein kinase, Transferase |
Function
Effector serine/threonine-protein kinase component of the WNK-SPAK/OSR1 kinase cascade, which is involved in various processes, such as ion transport, response to hypertonic stress and blood pressure. Specifically recognizes and binds proteins with a RFXV motif. Acts downstream of WNK kinases (WNK1, WNK2, WNK3 or WNK4): following activation by WNK kinases, catalyzes phosphorylation of ion cotransporters, such as SLC12A1/NKCC2, SLC12A2/NKCC1, SLC12A3/NCC, SLC12A5/KCC2 or SLC12A6/KCC3, regulating their activity. Mediates regulatory volume increase in response to hyperosmotic stress by catalyzing phosphorylation of ion cotransporters SLC12A1/NKCC2, SLC12A2/NKCC1 and SLC12A6/KCC3 downstream of WNK1 and WNK3 kinases. Phosphorylation of Na-K-Cl cotransporters SLC12A2/NKCC1 and SLC12A2/NKCC1 promote their activation and ion influx; simultaneously, phosphorylation of K-Cl cotransporters SLC12A5/KCC2 and SLC12A6/KCC3 inhibit their activity, blocking ion efflux. Acts as a regulator of NaCl reabsorption in the distal nephron by mediating phosphorylation and activation of the thiazide-sensitive Na-Cl cotransporter SLC12A3/NCC in distal convoluted tubule cells of kidney downstream of WNK4. Also acts as a regulator of angiogenesis in endothelial cells downstream of WNK1. Acts as an activator of inward rectifier potassium channels KCNJ2/Kir2.1 and KCNJ4/Kir2.3 downstream of WNK1: recognizes and binds the RXFXV/I variant motif on KCNJ2/Kir2.1 and KCNJ4/Kir2.3 and regulates their localization to the cell membrane without mediating their phosphorylation. Phosphorylates RELL1, RELL2 and RELT. Phosphorylates PAK1. Phosphorylates PLSCR1 in the presence of RELT.
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.