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  • Title: Sequence features of the replication terminus of the Bacillus subtilis chromosome.
    Author: Carrigan CM, Haarsma JA, Smith MT, Wake RG.
    Journal: Nucleic Acids Res; 1987 Oct 26; 15(20):8501-9. PubMed ID: 3118336.
    Abstract:
    The sequence of 1267 nucleotides spanning the replication terminus, terC, of the Bacillus subtilis 168 chromosome has been determined. The site of arrest of the clockwise fork, which defines terC, has been localized to a 30-nucleotide portion (approximately) within this sequence. The arrest site occurs in an A + T-rich region between two open reading frames and very close to one of two imperfect inverted repeats (47-48 nucleotides each) which are separated by 59 nucleotides. The closeness of approach of the arrested clockwise fork to the first imperfect inverted repeat encountered in this region raises the possibility of a role for the inverted repeats in the mechanism of fork arrest.
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