Amino acid sequence of a 22-residue section from the variable part of pig immunoglobulin lambda-chains

The section which represents a part of a larger fragment of the variable part of pig immunoglobulin λ-chains is constituted by two peptides (18 residues and 4 residues) of variable character. These peptides were fractionated and their amino acid sequence determined. At certain positions two to four different amino acids were found. There is a close relation between the found amino acid sequence Ala-Thr-Leu-Thr-Ile-Thr-Gly-Ala-Gln-Ala-Glu-Asp-Glu-Ala-Asp-Tyr-Phe-Cys-Ala-Leu-Tyr-Lys Ala Leu Ala Asn Ser Gly Arg Gly Gly Thr Gly and the amino acid sequence of the corresponding region of human type L Bence-Jones proteins.