Buffer Formulation	20mM Tris, 150mM NaCl, pH8.0, containing 1mM EDTA, 1mM DTT, 0.01% SKL, 5% Trehalose and Proclin300.
Traits	Freeze-dried powder
Purity	> 95%
Isoelectric Point	9.7
Applications	Cell culture; Activity Assays.

ACTIVITY TEST

IFN-γ is a dimerized soluble cytokine that is the only member of the type II class of interferons.The importance of IFNγ in the immune system stems in part from its ability to inhibit viral replication directly, and most importantly from its immunostimulatory and immunomodulatory effects. As reported, IFNγ is an important activator of human monocytic THP1 cells. Therefore,THP-1 cells were incubated in RPMI 1640 with various concentration of IFN-γ, then cells were observed by inverted microscope everyday.After stimulated with IFN-γ(5ng/ml) for 5 days, morphological changes occured in THP1 cells which displayed the shape of fusiform or polygon and were more likely to adhere.<br/>Effect of IFN-γ on THP1 cells is shown in Figure 1.

 

USAGE

 

Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

 

STORAGE

 

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

 

STABILITY

 

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

 

Image


Figure. SDS-PAGE

 

Western Blot, Sample: APA049Hu61; Antibody: PAA049Hu06

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