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  • Title: Isolation and characterization of cyanogen bromide fragments of the A and B chains of the antitumor toxin ricin D.
    Author: Bull H, Li SS, Fowler E, Lin TT.
    Journal: Int J Pept Protein Res; 1980 Sep; 16(3):208-18. PubMed ID: 7461902.
    Abstract:
    Both the A and B chains of ricin D consist of four CNBr fragments. These fragments have been isolated from the separated chains of S-carboxymethylated ricin D obtained from the small bean variety of Ricinus communis. The peptides have been characterized by molecular weight, amino acid composition and amino terminal sequence. A unique order of the peptides is evident for each chain. These sequence data are compared with those obtained for ricin D isolated from the large bean variety.
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