• Purity

  >97%, by SDS-PAGE under reducing conditions and visualized by silver stain

• Endotoxin Level

  <1.0 EU per 1 μg of the protein by the LAL method.  

• Activity

  Measured in a cell proliferation assay using MC/9‑2 mouse mast cells. Thompson-Snipes, L.     et al. (1991) J. Exp. Med.     173:507. The ED    ₅₀ for this effect is 3‑15 ng/mL.

• Source

  E. coli-derived Gln26-Arg170, with an N-terminal Met

• Accession #

• N-terminal Sequence    
  Analysis

  Met

• Structure / Form

  Noncovalently-linked homodimer

• Predicted Molecular Mass

  17.2 kDa

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

Background: IL-10

Interleukin 10 (IL-10) is a pleiotropic cytokine that plays an important role in regulating inflammatory and immune responses. It is a potent suppressant of proinflammatory cytokine production by monocytes/macrophages and neutrophils. It is also an inhibitor of macrophage and T cell effector functions. Homologs of mammalian IL-10 have been identified in the genome of several viruses, including Epstein-Barr virus (EBV), poxvirus Orf, baboon cytomegalovirus, and human and equine herpes virus. In the EBV genome, the BCRF1 open reading frame encodes the EBV IL-10 (vIL-10). The viral IL-10 precursor is a 170 amino acid residue (aa) protein with a putative 25 aa signal peptide that is cleaved to yield the 145 aa mature protein. The EBV IL-10 precursor shares approximately 78% and 65% amino acid sequence homology with human and mouse IL-10, respectively. Most of the deviations are localized to the signal peptide and the first 20 amino-terminal residues. Viral IL-10 is expressed during the late phase of the lytic cycle of EBV infection. Viral IL-10 is a partial agonist of mammalian IL-10 and shares many of their activities. It is likely that vIL-10 may have a role in host immune evasion.

• References:

1. Moore, K.W. et al. (1993) Annu. Rev. Immunol. 11:165.

• Long Name:

  Interleukin 10

• Entrez Gene IDs:

  3586 (Human); 16153 (Mouse); 25325 (Rat); 397106 (Porcine); 403628 (Canine); 493683 (Feline); 100135553 (Guinea Pig); 2949786 (Viral)

• Alternate Names:

  CSIF; CSIFMGC126450; Cytokine synthesis inhibitory factor; IL10; IL-10; IL10A; IL-10MGC126451; interleukin 10; interleukin-10; TGIF