Recombinant Human OXSR1/OSR1 Protein (GST Tag)

SKU: PKSH030391

Size: 50μg

Storage: Store at < -20°C, stable for 6 months. Please minimize freeze-thaw cycles.

Shipping: This product is provided as liquid. It is shipped at frozen temperature with blue ice/gel packs. Upon receipt, store it immediately at < - 20°C.

Exp date: 12 months

Category ID_II: Recombinant Proteins

Category ID_III: Others

Abbreviation:

Target Synonym: OSR1

Research Areas: Signal Transduction;

Conjugation:

Target Species: Human

Expression Host: Baculovirus-Insect Cells

Application:

Fusion tag: N-GST

UNIProt ID: O95747

Accession: NP_005100.1

Background: Oxidative stress-responsive 1 protein (OXSR1), also known as Serine/threonine-protein kinase OSR1, is a member of the Ser/Thr protein kinase family of proteins. OXSR1 regulates downstream kinases in response to environmental stress, and may play a role in regulating the actin cytoskeleton. OXSR1 is a 58 kDa protein of 527 amino acids that is widely expressed in mammalian tissues and cell lines. The amino acid (aa) sequence of the predicted OXSR1 protein is 39% identical to that of human SOK1. Of potential regulators surveyed, endogenous OXSR1 is activated only by osmotic stresses, notably sorbitol and to a lesser extent NaCl. OXSR1 did not increase the activity of coexpressed JNK, nor did it activate three other MAPKs, p38, ERK2, and ERK5. Phosphorylation by OXSR1 modulates the G protein sensitivity of PAK isoforms. The OXSR1 and SPAK are key enzymes in a signalling cascade regulating the activity of Na+/K+/2Cl- co-transporters (NKCCs) in response to osmotic stress. Both kinases have a conserved carboxy-terminal (CCT) domain, which recognizes a unique peptide (Arg-Phe-Xaa-Val) motif. The OXSR1 and SPAK kinases specifically recognize their upstream activators and downstream substrates.

Concentration:

Activity: Not validated for activity

Sequence: Met 1-Ser 527

Purity: > 88 % as determined by reducing SDS-PAGE.

Formulation: Supplied as sterile solution of 50mM Tris, 100mM NaCl, pH 8.0, 0.5mM GSH, 0.5mM PMSF, 0.5mM EDTA, 10% glycerol

Reconstitution: Not Applicable

Endotoxin: < 1.0 EU per μg of the protein as determined by the LAL method.

Calculated MW: 84.0 kDa

ObservedMW: 80 kDa