title: Isolation of cDNA clones encoding the 20K T3 glycoprotein of human T-cell receptor complex.
abstract: The complete amino acid sequence of one of the polypeptide chains of the human T3/T-cell receptor complex, the T3 glycoprotein (T3-delta-chain) of relative molecular mass 20,000, was deduced from cDNA clones derived from HPB-ALL cells and a human T-cell clone. Inspection of the 171-amino acid sequence reveals a signal peptide, a 79-amino acid extracellular domain, one transmembrane region and a 44-amino acid intracellular domain which show no sequence homology with members of the T-cell receptor/immunoglobulin/MHC multi-gene family. The T3 delta-chain is coded for by a single-copy gene the expression of which is restricted to T lymphocytes in humans and mice.
mesh_terms: D000595:Amino Acid Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D004247:DNA / Q000302:isolation & purification*; D004262:DNA Restriction Enzymes; D006801:Humans; D007945:Leukemia, Lymphoid; D046911:Macromolecular Substances; D008970:Molecular Weight; D009693:Nucleic Acid Hybridization; D012333:RNA, Messenger / Q000235:genetics; D011948:Receptors, Antigen, T-Cell / Q000235:genetics*; D013601:T-Lymphocytes / Q000276:immunology
chemical_list: D046911:Macromolecular Substances; D012333:RNA, Messenger; D011948:Receptors, Antigen, T-Cell; D004247:DNA; D004262:DNA Restriction Enzymes