title: Amino acid sequence of the cytoplasmic segment of the h-2Kd (H2.31) murine major histocompatibility antigen.
abstract: The primary structure of the carboxy-terminal portion of the H-2Kd murine major histocompatibility antigen has been determined using radiosequencing methodology. The two peptides encompassing the entire cytoplasmic portion of the H-2Kd molecule were isolated from cyanogen bromide digests of the detergent solubilized molecule. These two peptides are not present in CNBr digests of papain-solubilized H-2Kd. Alignment of the two CNBr peptides was deduced from tryptic overlap peptides derived from the whole molecule. Alignment with the corresponding region of the H-2Kb antigen shows 90% homology and supports the assignment of this segment of H-2Kd as the C-terminal. The sequence obtained in this study is (Met)-Arg-Arg-Asn-Thr-Gly-Gly-Lys-Gly-Val-Asn-Tyr-Ala-Leu-Ala-Pro-Gly-Ser-Gln- Thr-Ser-Asp-Leu-Ser-Leu-Pro-Asp-Pro-Lys-Val-Met-Val-His-Asp-Pro-His-Ser-Leu- Ala. These data allow extensive comparisons with the protein sequences deduced from the 3' ends of H-2d haplotype cDNA and genomic clones as well as with the homologous regions of H-2Kb and H-2Db.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002851:Chromatography, High Pressure Liquid; D003488:Cyanogen Bromide; D003593:Cytoplasm / Q000276:immunology; D003902:Detergents; D006183:H-2 Antigens; D008285:Major Histocompatibility Complex; D051379:Mice; D010206:Papain; D010446:Peptide Fragments / Q000302:isolation & purification; D014357:Trypsin
chemical_list: D003902:Detergents; D006183:H-2 Antigens; D010446:Peptide Fragments; D014357:Trypsin; D010206:Papain; D003488:Cyanogen Bromide