OSM Protein, Human (HEK293, His-Avi)

OSM protein is a multifunctional growth regulator with dual functions of inhibiting tumor cell lines and stimulating the proliferation of AIDS-KS cells. It coordinates the production of cytokines, including IL-6, G-CSF, and GM-CSF, and binds to type I and type II OSM receptors, forming heterodimers with LIFR/IL6ST and OSMR/IL6ST, respectively. OSM Protein, Human (HEK293, His-Avi) is the recombinant human-derived OSM protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of OSM Protein, Human (HEK293, His-Avi) is 196 a.a., with molecular weight of 30-40 kDa.

GMP OSM Protein stands as a versatile growth regulator with dual inhibitory effects on the proliferation of various tumor cell lines and stimulatory effects on AIDS-KS cell proliferation. Notably, OSM orchestrates the regulation of cytokine production, including IL-6, G-CSF, and GM-CSF from endothelial cells. This multifaceted growth regulator engages both the type I OSM receptor, forming heterodimers composed of LIFR and IL6ST, and the type II OSM receptor, forming heterodimers composed of OSMR and IL6ST. Beyond its antiproliferative and proliferative roles, OSM plays a crucial part in the maturation of fetal hepatocytes, contributing significantly to liver development and regeneration.

Human LIF R, His Tag immobilized on CM5 Chip can bind Human OSM, His Tag with an affinity constant of 0.87 μM as determined in SPR assay (Biacore T200).

Human

HEK293

C-Avi;C-His

P13725 (A26-R221)

5008  [NCBI]

30-40 kDa

Greater than 95% as determined by Tris-Bis PAGE.

Lyophilized powder.

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. Normally 5% trehalose is added as protectant before lyophilization.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.