Characterization of the cleavage site and the recognition sequence of the I-CreI DNA endonuclease encoded by the chloroplast ribosomal intron of Chlamydomonas reinhardtii.

Abstract excerpt

The chloroplast ribosomal intron of Chlamydomonas reinhardtii encodes a sequence-specific DNA endonuclease (I-CreI), which is most probably involved in the mobility of this intron. Here we show that I-CreI generates a 4 bp staggered cleavage just downstream of the intron insertion site. The I-CreI recognition sequence is 19-24 bp in size and is located asymmetrically around the intron insertion site. Screening of...

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