Characterisation and antiproliferative activity of an alpha-type murine interferon from embryonic fibroblasts.
Interferons play a part in the negative control of cell proliferation of mammalian cells. Here a natural interferon has been isolated from soluble proteins secreted by secondary murine embryonic fibroblasts using Blue Sepharose chromatography, immunoaffinity exclusion and Q Sepharose ion exchange fractionation. Partial amino acid sequencing assigns it to the interferon alpha family. Its biological and physico-chemical properties single it out from all other murine alpha interferons. The embryonic interferon has stronger antiproliferative activity, is acid labile, has stronger affinity for Blue Sepharose and weak affinity for antibodies which recognise other murine interferon alpha subtypes.
Beare
D
D
Division of Life Sciences, King's College London, UK.
Learmonth
M
M
Wells
V
V
Aitken
A
A
Mallucci
L
L
D000595:Amino Acid Sequence; D000818:Animals; D002455:Cell Division / Q000187:drug effects; D004622:Embryo, Mammalian / Q000166:cytology / Q000378:metabolism*; D005347:Fibroblasts / Q000378:metabolism; D016898:Interferon-alpha / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D051379:Mice; D008969:Molecular Sequence Data
D016898:Interferon-alpha