Protein
Modification methylase CfrBI
Organism
Citrobacter freundii
Function
This methylase recognizes the double-stranded sequence CCWWGG, causes specific methylation on C-? on both strands, and protects the DNA from cleavage by the CfrBI endonuclease.
Similarity
Belongs to the N(4)/N(6)-methyltransferase family. N(4) subfamily.
Sequence
MTVKNNYLNRGYLVTSTTQAKKIAKLHLEKLDLADKFSFGLPEVDDRYHVWRVPLVATGHRIGEIVINSKTSTIDYKKSSKSPFLIKKAMEVVHTPKKVKKEKKIISKSPLNNMLLQGNCAETLKKLPDESVNLVFTSPPYYNAKPEYSEYHTYDEYLSLLRSVIKECHRVLSEGRFFVINVSPVLIRRASRNEASKRIAVPFDLHRLFIEEGYEFIDDIHWVKPEGAGWALGRGRRFAADRNPLQYKPVPVTEYILVYRKKTDKLIDWNIRNHHSKEDVFDSKIGDDYEKTNLWKINPSRNRKHPATFPYGLAERVIKYYSFKNDVILDPFAGSGTTAKAAIDLGRRFVMCEISKQYIDLIIEGTMLGGDLKIIN