Amino-terminal sequences of two polypeptides from human serum with nonsuppressible insulin-like and cell-growth-promoting activities: evidence for structural homology with insulin B chain by E. Rinderknecht and R. E. Humbel

PNAS73(12),4379–4381 (1976), DOI10.1073/pnas.73.12.4379. Abstract: amino-terminal sequences, 22 identical positions among first31, comparison to insulin B chain and proposed insulin-like-growth-factor designation. pmc.ncbi.nlm.nih.gov/articles/PMC431462/ . Initials retained.