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Biochem Biophys Res Commun. 1989 Mar 31;159(3):1427-34.

Cloning and sequence analysis of cDNA encoding a precursor for human brain natriuretic peptide.

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  • 1Daiichi Pure Chemicals Co. Ltd., Tokyo, Japan.


Brain natriuretic peptide (BNP) is a novel diuretic-natriuretic and vasorelaxant peptide originally isolated from porcine brain. In contrast to mammalian atrial natriuretic peptide (ANP), immunological characterization suggests that mammalian BNPs show structural species differences. In order to determine the amino acid sequence of human BNP, we constructed a human cardiac atrium cDNA library and screened for clones hybridizing with porcine BNP cDNA. By sequence analysis of cDNA encoding a putative human BNP precursor, an amino acid sequence of human prepro-BNP of 134 residues has been deduced, in which a minimum bioactive unit highly homologous to porcine BNP-32 is present at the carboxy-terminus.

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