Protein
Putative type-1 restriction enzyme specificity protein MG438
Organism
Mycoplasma genitalium (strain ATCC 33530 / G-37 / NCTC 10195)
Function
The M and S subunits together form a methyltransferase (MTase) that methylates two adenine residues in complementary strands of a bipartite DNA recognition sequence. Subunit S dictates DNA sequences specificity (By similarity).
Similarity
Belongs to the type-I restriction system S methylase family.
Sequence
MTPKLKLNNNINWTKRTIDSLFDLKKGEMLEKELITPEGKYEYFNGGVKNSGRTDKFNTFKNTISVIVGGSCGYVRLADKNFFCGQSNCTLNLLDPLELDLKFAYYALKSQQERIEALAFGTTIQNIRISDLKELEIPFTSNKNEQHAIANTLSVFDERLENLASLIEINRKLRDEYAHKLFSLDEAFLSHWKLEALQSQMHEITLGEIFNFKSGKYLKSEERLEEGKFPYYGAGIDNTGFVAEPNTEKDTISIISNGYSLGNIRYHEIPWFNGTGSIALEPMNNEIYVPFFYCALKYLQKDIKERMKSDDSPFLSLKLAGEIKVPYVKSFQLQRKAGKIVFLLDQKLDQYKKELSSLTVIRDTLLKKLFPDMTERTKSIKDY