when subcellular components of the cell were fractionated by discontinuous sucrose gradient centrifugation , similar amounts of both pp60src and src protein kinase activity cosedimented with the plasma membrane fractions from both transformed and revertant vole cells , as well as from asv-infected chicken embryo fibroblasts . src protein kinase activity associated with plasma membrane fractions prepared from vole cells and asv-infected chicken embryo fibroblasts was resistant to extraction with high salt concentrations , but partial elution was achieved with nonionic detergent .
C0007634
cells
C0016030
fibroblasts