title: An unusual accumulation of repetitive sequences in the rat genome.
abstract: We have found in the rat genomic DNA a fragment 1300 bp long, containing an unusual concentration of members of different repetitive families. Three different repeats were noticed. An Alu-like repeat, homologous to the mouse B1 sequence, was followed by a fragment containing alternating purine-pyrimidine bases as in Z-DNA. Finally, a third repeat was identified, containing 38 TAGA tetranucleotides as described for reptile DNA.
mesh_terms: D000818:Animals; D002874:Chromosome Mapping; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics*; D004262:DNA Restriction Enzymes; D051381:Rats / Q000235:genetics*; D012091:Repetitive Sequences, Nucleic Acid; D014158:Transcription, Genetic
chemical_list: D004247:DNA; D004262:DNA Restriction Enzymes