since previous experiments have shown that fusion injection of the purified rous sarcoma virus protein p15 into hamster rbh cells caused cleavage of the precursor protein pr76 to form the virus group-specific antigen ( gag ) but did not induce infectious virus , we conclude that in addition to p15 other virus proteins are required to induce virus rescue in hamster rbh cells .
C0017279
group-specific antigen
C0042776
virus