sr-Chloromonas sp. AnF0048 Polypeptide-1 is a single chain recombinant protein produced by fermentation in E. coli. The starting gene is synthesized to be identical to the gene which codes for Ice-binding protein derived from the alga Chloromonas sp. AnF0048. The parent protein contains a maximum of 353 amino acids which may contain disulfide bonds and/or glycosylation, and consists of the proper sequence of the 20 standard amino acids.