title: Analysis of a replication initiation sequence from the adenosine deaminase region of the mouse genome.
abstract: A 4-kb HindIII fragment that supported the efficient autonomous replication of plasmid vector pDY-, a replication-defective construct based on Epstein-Barr virus sequences, in human K562 cells was rescued from amplified double-minute chromosomes containing the murine adenosine deaminase locus. Polymerase chain reaction assays of size-fractionated nascent strands demonstrated that replication initiation occurred within the same 1- to 2-kb region of this fragment in autonomously replicating plasmids containing the sequence in either orientation, in double-minute chromosomes, and in the single-copy locus at its normal chromosomal location. The complete sequence of this fragment was determined; it contains a 248-bp polypurine tract and consensus binding site sequences for several putative transcription and replication factors.
authors.affiliation: Institute for Molecular Genetics, Baylor College of Medicine, Houston, Texas 77030.
authors.forename: V J
authors.initials: VJ
authors.lastname: Virta-Pearlman
authors.forename: P H
authors.initials: PH
authors.lastname: Gunaratne
authors.forename: A C
authors.initials: AC
authors.lastname: Chinault
mesh_terms: D000243:Adenosine Deaminase / Q000235:genetics*; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001665:Binding Sites; D002460:Cell Line; D003001:Cloning, Molecular; D016384:Consensus Sequence; D004247:DNA; D004261:DNA Replication; D016678:Genome; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D010957:Plasmids; D016133:Polymerase Chain Reaction; D012689:Sequence Homology, Nucleic Acid; D014158:Transcription, Genetic
chemical_list: D004247:DNA; D000243:Adenosine Deaminase