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MSST0039 Sigma-Aldrich

SILuProt IFNG Interferon Gamma human

recombinant, expressed in HEK 293 cells, SIL MS Protein Standard, 13C and 15N-labeled

Synonym: IFNγ, IFN-gamma, Immune interferon, Immuneinterferon

  •  NACRES NA.12



Related Categories Biochemicals and Reagents, Proteins and Derivatives, SILuProt Protein Standards for Quantitative Mass Spectrometry More...
Quality Level   200
biological source   human
recombinant   expressed in HEK 293 cells
assay   ≥98% (SDS-PAGE)
form   lyophilized powder
potency   ≥98% Heavy amino acids incorporation efficiency by MS
mol wt   calculated mol wt 17 kDa
application(s)   mass spectroscopy (MS): suitable
suitability   suitable for mass spectrometry (standard)
UniProt accession no.   P01579
storage temp.   −20°C
Gene Information   human ... IFNG(3458)


General description

Interferon gamma (IFNγ) is a dimerized soluble cytokine that is the only member of the type II class of interferons. IFNγ is secreted by T helper cells (specifically, Th1 cells), cytotoxic T cells (TC cells) and Natural killer (NK) cells. When combined with other inflammatory cytokines, evaluating the levels of IFNγ can be used as a diagnostic tool in patients with breast cancer or benign prostatic hyperplasia. A recent study evaluated the effect of a cancer vaccine given to patients with colorectal cancer, on the levels of plasma pro-inflammatory cytokines (including IFN-γ). The study concluded that patients achieving stable disease showed increasing levels of plasma inflammatory cytokines.



Biochem/physiol Actions

SILuProt IFNG is a recombinant, stable isotope-labeled human IFNG which incorporates [13C6, 15N4]-Arginine and [13C6, 15N2]-Lysine. Expressed in human 293 cells, it is designed to be used as an internal standard for bioanalysis of IFNG in mass-spectrometry. SILu Prot IFNG is a homodimer consisting of 138 amino acids, with a calculated molecular mass of 17 kDa.

Physical form

Supplied as a lyophilized powder containing phosphate buffered saline.

Legal Information

This product is licensed under U.S. Patent No. 7,396,688 and foreign counterparts from E. I. du Pont de Nemours and Company. The purchase of this product conveys to the buyer the nontransferable right to use the purchased amount of the product for research and development only, including services for a third party for consideration. The buyer cannot sell or otherwise transfer this product, its components or materials made using this product or its components to a third party. Information about licenses for excluded uses is available from: E. I. du Pont de Nemours and Company; Attn: Associate Director, Commercial Development; DuPont Experimental Station E268; 200 Powdermill Rd.; Wilmington, DE 19803; 1-877-881-9787 (voice), 1-302-695-1437 (fax), licensing@dupont.com.

SILu is a trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


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