Recombinant Human IFN-gamma GMP Protein, CF GMP Best Seller

R&D Systems, part of Bio-Techne | Catalog # 285-GMP

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R&D Systems, part of Bio-Techne
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Key Product Details

Source

E. coli

Accession #

CAA31639.1

Conjugate

Unconjugated

Applications

Bioactivity

View all IFN-gamma Proteins and Enzymes »

Product Specifications

Source

E. coli-derived human IFN-gamma protein
Gln24-Gln166, with an N-terminal Met
Produced using non-animal reagents in an animal-free laboratory.
Manufactured and tested under cGMP guidelines.

Purity

>97%, by SDS-PAGE with silver staining, under reducing conditions.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Met-Gln24-Asp-Pro-Tyr-Val-Lys-Glu-Ala-Glu

Predicted Molecular Mass

16.9 kDa

SDS-PAGE

17 kDa, reducing conditions

Activity

Measured in anti-viral assays using HeLa human cervical epithelial carcinoma cells infected with encephalomyocarditis (EMC) virus. Meager, A. (1987) in Lymphokines and Interferons, a Practical Approach. Clemens, M.J. et al. (eds): IRL Press. 129.
The ED50 for this effect is 0.15-0.75 ng/mL.
The specific activity of recombinant human IFN-gamma is >2.0 x 107 IU/mg, which is calibrated against the human IFN-gamma Standard (NIBSC code: 87/586).

Host Cell Protein

<0.5 ng per µg of protein when tested by ELISA.

Mycoplasma

Negative for Mycoplasma.

Host Cell DNA

<0.0015 ng per µg of protein when tested by PCR.

Reviewed Applications

Read 1 review rated 5 using 285-GMP in the following applications:

Scientific Data Images for Recombinant Human IFN-gamma GMP Protein, CF

Recombinant Human IFN-gamma GMP Protein Bioactivity

Recombinant Human IFN-gamma GMP Protein Bioactivity

GMP-grade Recombinant Human IFN-gamma (Catalog # 285-GMP) demonstrates anti-viral activity in HeLa human cervical epithelial carcinoma cells infected with encephalomyocarditis (EMC) virus. The ED50 for this effect is 0.15-0.75 ng/mL.
Recombinant Human IFN-gamma GMP Protein SDS-PAGE

Recombinant Human IFN-gamma GMP Protein SDS-PAGE

1 μg/lane of GMP-grade Recombinant Human IFN-gamma (Catalog # 285-GMP) was resolved with SDS-PAGE under reducing (R) conditions and visualized by silver staining, showing a single band at 17 kDa.
Recombinant Human IFN-gamma GMP Protein Mass Spectrometry

Recombinant Human IFN-gamma GMP Protein Mass Spectrometry

MALDI-TOF analysis of GMP-grade Recombinant Human IFN-gamma (Catalog # 285-GMP). The major peak corresponds to the calculated molecular mass, 16881 Da. The minor peak at 17099 Da is a matrix-associated artifact of the MALDI-TOF.

Formulation, Preparation and Storage

285-GMP
Formulation Lyophilized from a 0.2 μm filtered solution in Sodium Succinate, Mannitol and Tween® 80.
Reconstitution Reconstitute at 200 μg/mL in sterile, deionized water.
Shipping The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • A minimum of 12 months when stored at ≤ -20 °C as supplied. Refer to lot specific COA for the Use by Date.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 3 months, ≤ -20 °C under sterile conditions after reconstitution.

Background: IFN-gamma

Interferon-gamma (IFN-gamma), also known as type II or immune interferon, exerts a wide range of immunoregulatory activities and is considered to be the prototype proinflammatory cytokine (1, 2). Mature human IFN-gamma exists as a non-covalently linked homodimer of 20-25 kDa variably glycosylated subunits (3). It shares 90% amino acid (aa) sequence identity with rhesus IFN-gamma, 59%‑64% with bovine, canine, equine, feline, and porcine IFN‑ gamma, and 37%‑43% with cotton rat, mouse, and rat IFN-gamma. IFN-gamma dimers bind to IFN-gamma RI ( alpha subunits) which then interact with IFN-gamma RII ( beta subunits) to form the functional receptor complex of two alpha and two beta subunits. Inclusion of IFN-gamma RII increases the binding affinity for ligand and the efficiency of signal transduction (4, 5). IFN-gamma is produced by a variety of immune cells under inflammatory conditions, notably by T cells and NK cells (6). It plays a key role in host defense by promoting the development and activation of Th1 cells, chemoattraction and activation of monocytes and macrophages, up‑regulation of antigen presentation molecules, and immunoglobulin class switching in B cells. It also exhibits antiviral, antiproliferative, and apoptotic effects (6, 7). In addition, IFN-gamma functions as an anti-inflammatory mediator by promoting the development of regulatory T cells and inhibiting Th17 cell differentiation (8, 9). The pleiotropic effects of IFN-gamma contribute to the development of multiple aspects of atherosclerosis (7).

References

  1. Billiau, A. and P. Matthys (2009) Cytokine Growth Factor Rev. 20:97.
  2. Pestka, S. et al. (2004) Immunol. Rev. 202:8.
  3. Gray, P.W. and D.V. Goeddel (1982) Nature 298:859.
  4. Marsters, S.A. et al. (1995) Proc. Natl. Acad. Sci. 92:5401.
  5. Krause, C.D. et al. (2000) J. Biol. Chem. 275:22995.
  6. Schroder, K. et al. (2004) J. Leukoc. Biol. 75:163.
  7. McLaren, J.E. and D.P. Ramji (2009) Cytokine Growth Factor Rev. 20:125.
  8. Muhl, H. and J. Pfeilschifter (2003) Int. Immunopharmacol. 3:1247.
  9. Kelchtermans, H. et al. (2008) Trends Immunol. 29:479.

Long Name

Interferon gamma

Alternate Names

IFG, IFI, IFNG, IFNgamma

Entrez Gene IDs

3458 (Human); 15978 (Mouse); 25712 (Rat); 396991 (Porcine); 281237 (Bovine); 403801 (Canine); 493965 (Feline)

Gene Symbol

IFNG

UniProt

CAA31639.1

Additional IFN-gamma Products

Product Documents for Recombinant Human IFN-gamma GMP Protein, CF

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

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Manufacturing Specifications

GMP Proteins
R&D Systems, a Bio-Techne Brand's GMP proteins are produced according to relevant sections of the following documents: USP Chapter 1043, Ancillary Materials for Cell, Gene and Tissue-Engineered Products and Eu. Ph. 5.2.12, Raw Materials of Biological Origin for the Production of Cell-based and Gene Therapy Medicinal Products.

R&D Systems' quality focus includes:

  • Manufactured and tested under an ISO 9001:2015 and ISO 13485:2016 certified quality system
  • Documented processes and QA control of documentation and process changes
  • Personnel training programs
  • Raw material testing and vendor qualification/monitoring
  • Fully validated equipment, processes and test methods
  • Equipment calibration schedules using a computerized calibration program
  • Facility maintenance, safety programs and pest control
  • Material review process for variances
  • Monitoring of stability over product shelf-life

R&D Systems strives to provide our customers with the analytical characteristics of each product so that customers may determine whether our products are appropriate for their research. The Certificate of Analysis provided contains the following lot specific information:

  • N-terminal amino acid analysis, SDS-PAGE analysis, and endotoxin level (as determined by LAL assay) performed on each bulk QC lot, not on individual bottlings of each QC lot
  • Post-bottling lot-specific bioassay results (compliance with an established range) and results of microbial testing according to USP
  • Host Cell Protein testing performed by ELISA
  • Mycoplasma testing by ribosomal RNA hybridization assay

Additional testing and documentation requested by the customer can be arranged at an additional cost. 

Production records and facilities are available for examination by appropriate personnel on-site at R&D Systems in Minneapolis, Minnesota USA.

R&D Systems sells GMP grade products for preclinical or clinical ex vivo use. They are not for in vivo use. Please read the following End User Terms prior to using this product.

Animal-Free Manufacturing Conditions
Our dedicated controlled-access animal-free laboratories ensure that at no point in production are the products exposed to potential contamination by animal components or byproducts. Every stage of manufacturing is conducted in compliance with R&D Systems' stringent Standard Operating Procedures (SOPs). Production and purification procedures use equipment and media that are confirmed animal-free.

Production

  • All molecular biology procedures use animal-free media and dedicated labware.
  • Dedicated fermentors are utilized in committed animal-free areas.

Purification

  • Protein purification columns are animal-free.
  • Bulk proteins are filtered using animal-free filters.
  • Purified proteins are stored in animal-free containers in a dedicated cold storage room.

Quality Assurance

  • Low Endotoxin Level.
  • No impairment of biological activity.
  • High quality product obtained under stringent conditions.
Please read our complete Animal-Free Statement.

Product Specific Notices for Recombinant Human IFN-gamma GMP Protein, CF

Full terms and conditions of sale can be found online in the Protein Sciences Segment T&Cs at: Terms & Conditions.

For preclinical, or clinical ex vivo use

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