front |1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |review

Newly-synthesized 35S-proteins secreted by cells are primarily fibronectin (F), laminin (L) and an unidentified protein (*). The unidentified protein was purified from the large amount of fetal calf proteins in the medium.