Protein
Modification methylase SacI
Organism
Streptomyces achromogenes
Function
This methylase recognizes the double-stranded sequence GAGCTC, causes specific methylation on C-4 on both strands, and protects the DNA from cleavage by the SacI endonuclease.
Similarity
Belongs to the class I-like SAM-binding methyltransferase superfamily. C5-methyltransferase family.
Sequence
MNHELPVISLFSGAGGLDCAIESCAEPPLVQDGSGSPLRVAVATDYEQTALDTLSANFPHTKTLCGDIQTIPTAELLEAGGLKPGDPTLVIGGPPCTPFSKSGFWIEEKRNSADPNASLLDEYVRVVRESKPEAFILENVQGLTYKTHQAQFDRLIAGLKDAGYNPTFRVLLAAEYGVPQLRRRVFVVGRRDGKAFHFPETTHSGESERDRVIDHTKIPFTSLREALAGLPDVPEAGEVVEGTYAELAAEVPPGQNYLWHTDRYGGRNEFKWRSRYWTFLLKADPDRPSTTLQAQPGPWVGPFHWENVKNANGEERARRFRVAEMKRIMTFPDEFVFTGVKREVQRQIGNPVPVELGKVVVRALMEQLGYLDSRGTTIPSQAGHEQLELI