natriuretic peptide type-B Human brain natriuretic factor-32 L-Histidine, L-seryl-L-prolyl-L-lysyl-L-methionyl-L-valyl-L-glutaminylglycyl-L-serylglycyl-L-cysteinyl-L-phenylalanylglycyl-L_arginyl-L-lysyl-L-methionyl-L-alpha-aspartyl-L-arginyl-L-isoleucyl-L-seryl-L-seryl-L-seryl-L-serylglycyl-L-leucylglycyl-L-cysteinyl-L-lysyl-L-valyl-L-leucyl-L-arginyl-L-arginyl-, cyclic (10-26)-disulfide Natrecor Natriuretic factor-32 (human brain clone lambda hbnp57) Nesiritide Acetate (BNP-32)(acetate)