Cloning and sequence of cDNA encoding a peptide C-terminal alpha-amidating enzyme from Xenopus laevis

Autor: Hisayuki Matsuo, Kayoko Fuchimura, Shoji Tanaka, Kazuhiro Ohsuye, Kensaku Mizuno, Yayoi Wada
Rok vydání: 1987
Předmět:
Zdroj: Biochemical and biophysical research communications. 148(2)
ISSN: 0006-291X
Popis: The C-terminal alpha-amide formation of the peptides is one of the most important events of prohormone processing. We have recently isolated an alpha-amidating enzyme, AE-I, from Xenopus laevis skin, which is the only enzyme ever purified to homogeneity. In this study, we report cloning and sequence of cDNA encoding AE-I. Our results indicate that enzyme AE-I is initially synthesized as a precursor with 400 amino acid residues, which is further processed to the mature enzyme consisting of 344 residues. Preliminary expression in E. coli of the cDNA corresponding to AE-I was found to produce an enzyme with appreciable alpha-amidating activity.
Databáze: OpenAIRE