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Human FAM3B Protein, Fc Tag  pdf  pdf  pdf


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FAB-H5252-100ug
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Synonym

FAM3B,PANDER,C21orf11,C21orf76

Source

Human FAM3B, Fc Tag (FAB-H5252) is expressed from human 293 cells (HEK293). It contains AA Glu 30 - Ser 235 (Accession # NP_478066).

Predicted N-terminus: Glu 30

Molecular Characterization

FAM3B(Glu 30 - Ser 235)NP_478066
Fc(Pro 100 - Lys 330)P01857

This protein carries a human IgG1 Fc tag at the C-terminus.

The protein has a calculated MW of 49.5 kDa. The protein migrates as 50-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.

Contact us for customized product form or formulation.

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.

Storage

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

Please avoid repeated freeze-thaw cycles.

No activity loss is observed after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

SDS-PAGE

Human FAM3B, Fc Tag (Cat. No. FAB-H5252) SDS-PAGE gel

Human FAM3B, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

 

Background

Protein FAM3B,a cytokine-like protein identified in 2002,is also known as cytokine-like protein 2-21, pancreatic-derived factor (PANDER), C21orf11 and C21orf76,which is highly expressed in the pancreas and also found in the colon, kidney, prostate, small intestine and testis. There are 2 N-termini have been observed in the mature protein: the first at Glu-30, resulting from signal peptide cleavage, the second at Ser-46. FAM3B can induce apoptosis of alpha and beta cells in a dose- and time-dependent manner. Previous studies showed that FAM3B regulates glucose and lipid metabolism through interaction with liver and endocrine pancreas. FAM3B silencing activates both extrinsic and intrinsic apoptotic pathways. In general, silencing FAM3B promoted p53 phosphorylation and induced p53 accumulation by decreasing Mdm2 expression, which resulted in apoptotic cell death.

References

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