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pubmed:abstractText |
The clones containing cDNA of porcine growth hormone were obtained using poly(A)-RNA from porcine pituitary as a template for reverse transcriptase. The analysis of their nucleotide sequences revealed that these cDNAs have differences not only on the nucleotide level but also on the amino acid level, i. e. the polymorphism of mRNA and protein occurs in the case of porcine growth hormone. To create the construction for expression of porcine growth hormone in E. coli, the 5'-part of cDNA, coding the first 15 amino acids of the mature hormone, was substituted by the artificial sequence.
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