The VkVI subgroup of rabbit light chains: complete amino acid sequence of a third variable region (K29-213)

The amino acid sequence of the variable region of a rabbit anti-streptococcal A-variant antibody light chain was determined. By using a combination of different cleavage methods, the sequence was established. Large peptides were sequenced in an extensively modified Beckman sequentor. Light chain K29-213 belongs to a rare subgroup (kVI). Several of these light chains of antibodies with different specificities have been totally or partially sequenced. Comparison of these light chains reveals at least four germ-line-encoded variants within this subgroup.