Protein
Putative type-1 restriction enzyme MjaXP specificity protein
Organism
Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)
Function
The M and S subunits together form a methyltransferase (MTase) that methylates two adenine residues in complementary strands of bipartite DNA recognition sequence. Subunit S dictates DNA sequences specificity (By similarity).
Similarity
Belongs to the type-I restriction system S methylase family.
Sequence
MLFMVKFRWETEFKETDIGKIPKDWDVKKIKDIGEVAGGSTPSTKIKEYWGGDIPWITPKDLANYEYIYISRGERNITEKAVKECSLRIFPKGTILLTSRAPIGYVAIAKNPLTTNQGFRNIIPKDGVVSEYLYYLFKTKTMSEYLKDISGGSTFPELKGSTLKEVEIPYPSPEEQQKIATVLSYFDDLIENKKKQNEILEKIALELFKNWFIDFEPFKNEEFVYNDELDKEIPKGWEVKRLGDILKVESGSNAPQREIYFENAKIPFVRVKHLVKGVCIESSDFINELALKDYKMKLYNEKSIIFQKSGESLKEARVNIVPFKFTAVNHLAVIDSSMLNEKHYFIYCLLRFLLKEIVYSVKGTTLPYLKISDIENKYIIIPPQPILQKFHSLVQPLFEKIINNQKQIMVLKKIRDALLPKLVFGELRVEEL