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EMBO J. 1988 Mar;7(3):843-9.

Interaction of a protein from rat liver nuclei with cruciform DNA.

Author information

1
EMBL, Heidelberg, FRG.

Abstract

We constructed a synthetic cruciform DNA which closely resembles Holliday junctions, a DNA structure formed during recombination or following the transition from interstrand to intrastrand base pairing in palindromic DNA sequences. We identified and partially purified a protein from rat liver that specifically binds to this cruciform DNA molecule and does not bind to single-stranded or double-stranded DNAs of the same sequence. This protein also binds to the cruciform structure formed by a 70 bp palindromic sequence cloned in plasmid pUC18. No detectable nucleolytic activity is associated with the rat liver cruciform-binding protein, in contrast to all cruciform-recognizing proteins known so far.

PMID:
3396544
PMCID:
PMC454401
[Indexed for MEDLINE]
Free PMC Article

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