Protein
DNA mismatch repair protein MutS
Organism
Bacillus subtilis (strain 168)
Function
This protein is involved in the repair of mismatches in DNA. It is possible that it carries out the mismatch recognition step. This protein has a weak ATPase activity (By similarity). Overexpression of mutSL partially suppresses the high spontaneous mutation frequency of a ytkD/mutM/mutY triple disruption which lacks the system required to prevent damage by oxidized guanine (8-oxo-dGTP). This suggests that MutSL also functions to repair mismatches due to oxidative stress in both growing and stationary phase cells.
Similarity
Belongs to the DNA mismatch repair MutS family.
Sequence
MAGYTPMIQQYLKIKAEHQDAFLFFRLGDFYEMFFEDAKKASQELEITLTSRDGGAAEKIPMCGVPYHSASAYIEQLIKKGYKVAICEQTEDPKAAKGVVKREVVQLITPGTVMDGKGIHESENNFIASVSACSNGYGLALSDLTTGENLAVLIERLEDVISEIYSVGAREIVVSGSLDADTVAQLRERCGATISIEDGETDEHVTIIEHLNNEDITKTFLRLYTYLKRTQKRSLDHLQPVQVYELEEAMKIDLYSKRNLELTETIRSKNKKGSLLWLLDETKTAMGGRLLKQWIDRPLIRVNQIEERQEMVETLMSHFFEREDLRERLKEVYDLERLAGRVAFGNVNARDLIQLKESLKQVPGIKQLVASLAHDKAKERAKRIDPCGDVLELLEEALYENPPLSVKEGNLIKDGYNQKLDEYRDASRNGKDWIARLEQQEREYTGIRSLKVGFNKVFGYYIEVTKANLHLLEEGRYERKQTLTNAERYITPELKEKEALILEAENNICELEYELFTELREKVKQYIPRLQQLAKQMSELDALQCFATISENRHYTKPEFSKDEVEVIEGRHPVVEKVMDSQEYVPNNCMMGDNRQMLLITGPNMSGKSTYMRQIALISIMAQIGCFVPAKKAVLPIFDQIFTRIGAADDLISGQSTFMVEMLEAKNAIVNATKNSLILFDEIGRGTSTYDGMALAQAIIEYVHDHIGAKTLFSTHYHELTVLEDKLPQLKNVHVRAEEYNGTVVFLHQIKEGAADKSYGIHVAQLAELPGDLIARAQDILKELEHSGNKPEVPVQKPQVKEEPAQLSFFDEAEKPAETPKLSKKEKQVIDAFKSLNILDMTPLEAMNEMYKLQKKLH