Analysis of the significance of two single-base-pair differences in the SL3-3 and Akv virus long terminal repeats.
Two single-base-pair differences between the long terminal repeats (LTRs) of the T-lymphomagenic murine retrovirus SL3-3 and nonleukemogenic Akv virus were tested for effects on activity of the LTRs. Evidence was obtained from electrophoretic mobility shift assays for the presence of at least one factor in both T and non-T cells that bound to the region of the viral enhancers that contained the differences. However, no significant differences in activity in expression assays were detected when the two base-pair differences were exchanged between the two LTRs. Therefore, they do not contribute to the higher activity of the SL3-3 LTR in T-lymphoma cell lines.
Morrison
H L
HL
Department of Molecular Genetics, Albert Einstein College of Medicine, Bronx, New York 10461.
Dai
H Y
HY
Pedersen
F S
FS
Lenz
J
J
D000818:Animals; D001482:Base Composition; D001483:Base Sequence; D002460:Cell Line; D004742:Enhancer Elements, Genetic; D009052:Leukemia Virus, Murine / Q000235:genetics*; D051379:Mice; D008969:Molecular Sequence Data; D015345:Oligonucleotide Probes; D012091:Repetitive Sequences, Nucleic Acid; D012190:Retroviridae / Q000235:genetics*; D013601:T-Lymphocytes / Q000382:microbiology
D015345:Oligonucleotide Probes