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  • Title: Primary structure of the variable region of an amyloidogenic Bence Jones protein NIG-77.
    Author: Tonoike H, Kametani F, Hoshi A, Shinoda T, Isobe T.
    Journal: Biochem Biophys Res Commun; 1985 Feb 15; 126(3):1228-34. PubMed ID: 3977913.
    Abstract:
    The complete amino acid sequence of the variable region of a Bence Jones protein NIG-77 from an individual with myeloma-associated systemic amyloidosis has been determined. This protein represents a complete light chain consisting of 216 residues and it has a sequence characteristic of V lambda I subgroup, which is closely homologous to that of another amyloidogenic V lambda I Bence Jones protein NIG-51, differing by 20 of 111 residues (82% homology). In contrast, it differs by 29 residues (74% homology) to that of non-amyloidogenic V lambda I light chain NIG-64. This finding shows that, in accordance with our previous report(1), the V lambda I-related light chains can further be divided into two distinct subsubgroups, V lambda I-1 and V lambda I-2, and the latter property seems to be more prone in association with the amyloid process.
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