Allen D W, Sarma P S, Niall H D, Sauer R
Proc Natl Acad Sci U S A. 1970 Oct;67(2):837-42. doi: 10.1073/pnas.67.2.837.
Gs-b, a second group-specific antigenic protein of the avian leukosis group, has been isolated from Tween 80-ether treated avian myeloblastosis virus by Sephadex and carboxymethylcellulose chromatography, and compared by immunological and chemical means with the antigen (gs-a) described previously.