title: Nucleotide sequence of the protease-coding region in an infectious DNA of simian retrovirus (STLV) of the HTLV-I family.
abstract: A provirus clone of simian T-cell leukemia virus isolated from a pigtailed monkey (PT-STLV), which is 90% homologous to HTLV-I, was shown to be biologically active in transfection assay. In transfected cells, gp61env, Pr55gag, and the mature gag proteins p24, p21, and p15 were detected, and type C particles were produced. The virus could be transmitted from the transfectants to recipient cells by cocultivation. In this biologically active provirus clone, a coding frame, possibly for protease, was identified between the gag and pol genes. The corrected sequence of the protease region of HTLV-I was also found to have a single open reading frame overlapping the gag and pol genes, although it has an amber codon in the middle of the frame. Thus, a single coding frame, which is different from those of gag and pol, is common to proteases of the HTLV family including HTLV-I.
mesh_terms: D000818:Animals; D001483:Base Sequence; D003001:Cloning, Molecular; D015683:Gene Products, gag; D005796:Genes; D005814:Genes, Viral; D008251:Macaca / Q000382:microbiology*; D008254:Macaca nemestrina / Q000382:microbiology*; D010447:Peptide Hydrolases / Q000235:genetics*; D012190:Retroviridae / Q000201:enzymology / Q000235:genetics* / Q000276:immunology; D012191:Retroviridae Proteins / Q000276:immunology; D012689:Sequence Homology, Nucleic Acid; D014759:Viral Envelope Proteins / Q000276:immunology; D014779:Virus Replication
chemical_list: D015683:Gene Products, gag; D012191:Retroviridae Proteins; D014759:Viral Envelope Proteins; D010447:Peptide Hydrolases