2025-09-06_00000259|hard|9Q7Z

One of a series of engineered variants of I-OnuI meganuclease targeting altered DNA target sequence; X-ray diffraction 3.32Å
Protein #1 300 residues (96% resolved)

MASSRRESINPWILTGFADAEGSFLLRIRNNNKSSVGYSTELGFQITLHNKDKSILENIQSTWKVGVIANSGDNAVSLKVTRFEDLKVIIDHFEKYPLITQKLGDYKLFKQAFSVMENKEHLKENGIKELVRIKAKLNWGLTDELKKAFPENISKERSLINKNIPNFKWLAGFTSGEGSFGVNLIKSKSKLGVQVQLRFRITQHIKDKNLMNSLITYLGCGYIAETNKSEFSWLQFVVTKFSDINDKIIPVFQENTLIGVKLEDFEDWCKVAKLIEEKKHLTESGLDEIKKIKLNMNKGR

MASSRRESINPWILTGFADAEGSFLLRIRNNNKSSVGYSTELGFQITLHNKDKSILENIQSTWKVGVIANSGDNAVSLKVTRFEDLKVIIDHFEKYPLITQKLGDYKLFKQAFSVMENKEHLKENGIKELVRIKAKLNWGLTDELKKAFPENISKERSLINKNIPNFKWLAGFTSGEGSFGVNLIKSKSKLGVQVQLRFRITQHIKDKNLMNSLITYLGCGYIAETNKSEFSWLQFVVTKFSDINDKIIPVFQENTLIGVKLEDFEDWCKVAKLIEEKKHLTESGLDEIKKIKLNMNKGR
DNA #2 26 bases

(DG)(DG)(DG)(DT)(DT)(DT)(DC)(DC)(DA)(DC)(DT)(DT)(DA)(DT)(DT)(DC)(DA)(DC)(DG)(DG)(DT)(DT)(DT)(DT)(DA)(DG)

GGGTTTCCACTTATTCACGGTTTTAG
DNA #3 26 bases

(DC)(DC)(DT)(DA)(DA)(DA)(DA)(DC)(DC)(DG)(DT)(DG)(DA)(DA)(DT)(DA)(DA)(DG)(DT)(DG)(DG)(DA)(DA)(DA)(DC)(DC)

CCTAAAACCGTGAATAAGTGGAAACC
Non polymer #4 CA

InChI=1S/Ca/q+2

[Ca+2]
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Reference