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PMID: 6165014 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

Partial purification and characterization of human gamma (immune) interferon.

Yip YK, Pang RH, Urban C, Vilcek J

Abstract

Human gamma (immune) interferon (IFN-gamma) was produced in lymphocyte cultures stimulated with a phorbol ester (12-O-tetradecanoylphorbol 13-acetate) and purified phytohemagglutinin. Physicochemical analysis showed that human IFN-gamma is a glycoprotein with an isoelectric point around 8.6 and an apparent molecular weight of 58,000 +/- 3000. A purification process for IFN-gamma was developed consisting of sequential chromatographic separations on controlled-pore glass, concanavalin A-Sepharose, and Bio-Gel P-200. This purification process resulted in an increase in specific activity from about 10(4) (crude culture fluid) to an estimated 10(7) units per mg of protein with a cumulative recovery of about 40% of the IFN activity.

MeSH Terms
Chromatography, Affinity Chromatography, Gel Concanavalin A Electrophoresis, Polyacrylamide Gel Humans Interferons/biosynthesis,isolation & purification Lymphocytes/drug effects,metabolism Macromolecular Substances Molecular Weight Tetradecanoylphorbol Acetate/pharmacology
Chemicals
Macromolecular Substances Concanavalin A Interferons Tetradecanoylphorbol Acetate
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Yip Y K
Pang R H
Urban C
Vilcek J
References (17)
17 references, click to expand
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1981-03-00
Pages
1601-5
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC319179
Subset
IM
Grants
NIAID NIH HHS · AI-07057 · United States
NIAID NIH HHS · AI-12948 · United States
NIAID NIH HHS · N01-AI-01269 · United States
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