Description: rh-polypeptide-64 is a single chain recombinant human peptide, produced by fermentation in e. coli. the starting gene is directly isolated from a human cell which codes for aquaporin-1 used as such or adapted to the production host. it contains a maximum of 269 amino acids which may contain disulfide bonds and/or glycosylation. the protein consists of the proper sequence of the 20 standard amino acids.