rev: August 9, 2001

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Human Cytokine/Growth Factor/Chemokines Sample Spec sheets (subject to change without notice):


Recombinant Human Interferon Alpha A, carrier-free

(Hu-IFN-aA; Hu-IFN-a2a)HUMAN INTERFERON ALPHA A, carrier-free

CAT# RDI-PB11101     $312.00/vial 20ug

Quantity Shipped: 1 vial of 20 ug in 0.1 ml.


Concentration: 0.2 mg/ml

MW: 19,241; >95% purity.

Source: cDNA obtained from human leukocyte mRNA expressed in E.coli.

Human Gene: IFNA2

Specific Activity: 3.58 x 10(8) units/mg.

Assay Used to Measure Bioactivity: Interferon was titrated with the use of the cytopathic effect inhibition assay as described [Rubinstein, S.,Familletti, P.C., and Pestka, S. (1981) "Convenient Assay for Interferons," J. Virol.37, 755-758; Familletti,P. C., Rubinstein,S., and Pestka, S. (1981)" A Convenient and Rapid Cytopathic Effect Inhibition Assay for Interferon," in Methods in Enzymology, Vol. 78 (S.Pestka, ed.), Academic Press, New York, 387-394]. In this antiviral assays for interferon about 1 unit/ml of interferon is the quantity necessary to produce a cytopathic effect of 50%. The units are determined with respect to the international reference standard for human interferon alpha A (Hu-IFN-aA) provided by the National Institutes of Health [see Pestka, S. (1986)"Interferon Standards and General Abbreviations, in Methods in Enzymology (S. Pestka, ed.), Academic Press, NewYork 119, 14-23]. Unit of activity measured on bovine MDBK cells with vesicular stomatitis virus (VSV).

Shipping Temperature: ICE PACK

Physical State of Product During Shipping: Frozen

Special Conditions/Comments: After receipt, this product should be kept at -70'C or below for retention of full activity. When thawing, the contents of the tube should be apportioned in  separate tubes so that freezing and thawing is kept to a minimum.

For In Vitro Research Use Only  Not for use in any commericlal kit or for use in the preparation of any commerical antibody


Recombinant Human Interferon Alpha 2 (Hu-IFN-a2; Hu-IFN-a2b)

CAT# RDI-PB11105     $410.00/vial $375.00/vial 3+

Quantity Shipped: 1 vial of 100K units in 100 ul.Concentration: 1 x 10(6) units/ml (3 ug/ml).

Buffer: Phosphate buffered saline (PBS) containing 0.1% bovine serum albumin (BSA).

Mr 19,269; >95% purity.

Source: cDNA obtained from human leukocyte mRNA expressed in E. coli.

Specific Activity: 3 x 10(8) units/mg.

Assay Used to Measure Bioactivity: Interferon was titrated with the use of the cytopathic effect inhibition assay as described [Rubinstein, S.,Familletti, P.C., and Pestka, S. (1981) "Convenient Assay for Interferons," J. Virol.37, 755-758; Familletti,P.C., Rubinstein,S., and Pestka, S. (1981)" A Convenient and Rapid Cytopathic Effect Inhibition Assay for Interferon," in Methods in Enzymology, Vol. 78 (S.Pestka, ed.), Academic Press, New York, 387-394]. In this antiviral assays for interferon about 1 unit/ml of interferon is the quantity necessary to produce a cytopathic effect of 50%. The units are determined with respect to the international reference standard for human interferon alpha A (Hu-IFN-aA) provided by the National Institutes of Health [see Pestka, S. (1986)"Interferon Standards and General Abbreviations, in Methods in Enzymology (S. Pestka, ed.), Academic Press, New York 119, 14-23]. Unit of activity measured on bovine MDBK cells  with vesicular stomatitis virus (VSV).

Shipping Temperature: ice pack

Physical State of Product During Shipping: Frozen

Special Conditions/Comments: After receipt, ths product should be kept at -70'C or below for retention of full activity. When thawing, the contents of the tube should be apportioned in separate  tubes so that freezing and thawing is kept to a minimu. Dilute only in buffers containing protein such as 0.1% bovine serum albumin (BSA).

-For In Vitro Research Use OnlyPrecautions: For In vitro research Use Only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and Federal rules in the use of this product. We are not responsible for any patent infringements that might result with the use of or derivation of this product.


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