| 摘要 |
A method for preparing polypeptides in bacteria with an alanine rather than a methionine at the N-terminus. The DNA sequence expressed has an alanine codon immediately following from one to about three contiguous methionine codons including a translation start signal and allows for the expression of polypeptides having the amino acid sequence of, for example, naturally occurring eucaryotic proteins such as various bovine and porcine somatotropin species.
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