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Human Oncostatin M (OSM) (26-221) Protein, premium grade

分子别名(Synonym)

OSM,MGC20461,Oncostatin M

表达区间及表达系统(Source)

Human Oncostatin M (OSM) (26-221) Protein, premium grade (OSM-H5214) is expressed from human 293 cells (HEK293). It contains AA Ala 26 - Arg 221 (Accession # P13725).

Predicted N-terminus: Ala 26

It is produced under our rigorous quality control system that incorporates a comprehensive set of tests including sterility and endotoxin tests. Product performance is carefully validated and tested for compatibility for cell culture use or any other applications in the early preclinical stage. When ready to transition into later clinical phases, we also offer a custom GMP protein service that tailors to your needs. We will work with you to customize and develop a GMP-grade product in accordance with your requests that also meets the requirements for raw and ancillary materials use in cell manufacturing of cell-based therapies.

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蛋白结构(Molecular Characterization)

Oncostatin M Structure

This protein carries no "tag".

The protein has a calculated MW of 22.2 kDa. The protein migrates as 25-30 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 0.1 EU per μg by the LAL method.

无菌(Sterility)

Negative

支原体(Mycoplasma)

Negative.

纯度(Purity)

>90% as determined by SDS-PAGE.

>90% as determined by SEC-MALS.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

Oncostatin M SDS-PAGE

Human Oncostatin M (OSM) (26-221) Protein, premium grade on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

SEC-MALS

Oncostatin M SEC-MALS

The purity of Human Oncostatin M (OSM) (26-221) Protein, premium grade (Cat. No. OSM-H5214) is more than 90% and the molecular weight of this protein is around 20-30 kDa verified by SEC-MALS.

Report

 

背景(Background)

Oncostatin M is also known as OSM, is a glycoprotein belonging to the interleukin-6 family of cytokines that has functions mainly in cell growth. Of these cytokines it most closely resembles leukemia inhibitory factor (LIF) in both structure and function. However, it is as yet poorly defined and is proving important in liver development, haematopoeisis, inflammation and possibly CNS development. It is also associated with bone formation and destruction. OSM signals through cell surface receptors that contain the protein gp130. The type I receptor is composed of gp130 and LIFR, the type II receptor is composed of gp130 and OSMR. Oncostatin M (OSM) was previoustly identified by its ability to inhibit the growth of cells from melanoma and other solid tumors. It also has been reported that OSM, like LIF, IL-6 and G-CSF, has the ability to inhibit the proliferation of murine M1 myeloid leukemic cells and can induce their differentiation into macrophage-like cells. The human form of OSM is insensitive between pH2 and 11 and resistant to heating for one hour at 56 degree but is not stable at 90 degrees. The three dimensional structure of human OSM has been solved to atomic resolution, confirming the predicted long chain four helix bundle topology. Comparing this structure with the known structures of other known LC cytokines shows it to be most closely related to LIF.

 

前沿进展

 
 
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Oncostatin M靶点信息
英文全称:Oncostatin M
中文全称:肿瘤抑制因子
种类:Homo sapiens
上市药物数量:0详情
临床药物数量:1详情
最高研发阶段:临床二期
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