Anabaena McyI R166M with prebound NAD and citrate

Structural insights into the catalytic mechanism of the microcystin tailoring enzyme McyI.

MGSSHHHHHHSSGLVPRGSHMTIIYPPKNFPSKTKNHKVLLIGKMYDEIGEKLLAEYTNVEIIKEPKQHQIHEAIQDVSG
VFVRYPTKLDAQAIGLAKNLKVISTSGFGTDAIDIAAATKRGIVVVNNPGLSTTAVTEHTLSMILALAKKLTFLNQCVKA
GNYLIRNQVQPIQLEGKTLGIVGLGMIGSAVAKICSTALQMRVLAYDPYVPSGKADTVRATLVQDLDYLLTESDFVSLHP
ELTDETCEMFDLEAFKKMKPSAFLINTSRGKVVRQPDLVTAIREKLIAGAAIDVFEPEPPAINNPLYEFDNVIFSPHLAG
VTPEAGMAAALSAANQILQVLQGEKPPYIINPKVWNS

0.2 M AmSO4, 0.1 M tri-Sodium citrate , pH 5.6, 15% (w/v) PEG 4000

hepatotoxin, microcystin, cofactor, Anabaena, OXIDOREDUCTASE