Abstract
The simian sarcoma virus transforming gene, v-sis, encodes a protein, p28sis, that is closely related to human platelet-derived growth factor (PDGF). The human locus related to v-sis was cloned and shown to contain at least five exons corresponding to the v-sis coding region. Nucleotide sequence analysis of these exons revealed that the predicted amino acid sequence of human c-sis differed by 6% from that of the woolly monkey-derived v-sis. These findings imply that the sis proto-oncogene has been well conserved during primate evolution. By comparison of the known amino acid sequences of PDGF peptides with the predicted human c-sis protein, it was possible to demonstrate that this human proto-oncogene is the structural gene encoding one of the two major polypeptides of this potent mitogen for connective tissue cells.
Original language | English |
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Pages (from-to) | 123-129 |
Number of pages | 7 |
Journal | Cell |
Volume | 37 |
Issue number | 1 |
DOIs | |
State | Published - May 1984 |
Externally published | Yes |