in the culture medium of macrophages the avidin concentration ( up to 47.5 +/- 0.5 microgram/mg cellular protein ) exceeded , in agreement with previous findings , that of fibroblasts ( up to 7.3 +/- 0.7 microgram/mg ) infected with transforming retroviruses ( rous sarcoma virus , its mutants temperature sensitive for transformation and ok 10 virus ) .
C0007634
cellular
C0016030
fibroblasts