摘要 |
<p>There is utilised recombinant DNA technology in the production of interferon, which provides a microbiologically produced polypeptide, all or part of which comprises the amino acid sequence of human interferon, especially fibroblast (???) interferon. There is also provided CDNA which codes for such a polypeptide; a plasmid, especially plasmid pBR 322, which comprises the cDNA; and a microorganism, for example Escherichia coli, especially E. coli K12 or E. coli X1776, which comprises the genetic information required for the production of such a polypeptide. The cDNA is preferably prepared using mRNA obtained from human fibroblasts.</p> |