J. Biol. Chem., Vol. 261, Issue 2, 719-722, Jan, 1986
Chemical synthesis and expression in yeast of a gene encoding connective tissue activating peptide-III. A novel approach for the facile assembly of a gene encoding a human platelet-derived mitogen
GT Mullenbach, A Tabrizi, RW Blacher and KS Steimer
A synthetic gene encoding the platelet-derived factor, connective tissue
activating peptide-III (CTAP-III) (Castor, C.W., Miller, J.W., and Walz,
D.A. (1983) Proc. Natl. Acad. Sci. U. S. A. 80, 765-769), has been
expressed and secreted from Saccharomyces cerevisiae by using a yeast
expression vector and an alpha-factor leader segment. Mitogenic activity
reported for naturally derived CTAP-III has been demonstrated here for
recombinant CTAP-III. Active CTAP-III has been purified to apparent
homogeneity. Structural studies have confirmed its identity. A general
approach for the facile synthesis of genes is presented which has permitted
the assembly of the entire structural gene and flanking regions (280 base
pairs) from 20 oligomers in a single annealing and ligation reaction pool.