Nucleic Acids Research, 1982, Vol. 10, No. 15 4467-4482
© 1982
MOLECULAR BIOLOGY |
Chemical synthesis and cloning of a gene for human ß-urogastrone
Searle Research and Development Lane End Road, High Wycombe, Bucks HP12 4HL, UK
Received June 14, 1982. Accepted July 6, 1982.
A DNA duplex coding for the 53 amino acids of human ß-urogastrone has been synthesised. Computer assisted design of the gene included restriction endonuclease sites for plasmid insertion, a termination codon and two triplets coding for lysine at the 5'-end of the structural gene.
The synthesis involved preparation of 23 oligodeoxyribo-nucleotides by phosphotriester procedures coupled to rapid HPLC techniques. The gene was constructed in two halves by enzymatic ligation of the oligonucleotides and cloned into a specially constructed chimeric plasmid vector. Escherichia coli K12 MRC8 was transformed by the plasmid and clones containing the full gene sequence were isolated and characterised.
1Present address: Celltech, 250, Bath Road, Slough, Bucks, UK
2Present address: Biochemistry Department, Medical Sciences Institute, University of Dundee, Dundee DD1 4HN, UK
3Present address: Department of Microbiology, University of Sheffield, Sheffield, UK
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