Protein
ATP-dependent DNA helicase UvrD1
Organism
Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh)
Function
DNA-dependent ATPase, acting on dsDNA with a 3'-ssDNA tail, unwinding with 3'-to 5'-polarity. A minimal tail of 18 nt is required for activity. Also highly efficient on nicked DNA. Involved in the post-incision events of nucleotide excision repair, as well as in nitrosative and oxidative stress response and possibly in persistence in the host. Inhibits RecA-mediated DNA strand exchange; this does not require ATPase activity. When combined with UvrA greatly inhibits RecA-mediated DNA strand exchange (By similarity).
Similarity
Belongs to the helicase family. UvrD subfamily.
Sequence
MSVHATDAKPPGPSPADQLLDGLNPQQRQAVVHEGSPLLIVAGAGSGKTAVLTRRIAYLMAARGVGVGQILAITFTNKAAAEMRERVVGLVGEKARYMWVSTFHSTCVRILRNQAALIEGLNSNFSIYDADDSRRLLQMVGRDLGLDIKRYSPRLLANAISNLKNELIDPHQALAGLTEDSDDLARAVASVYDEYQRRLRAANALDFDDLIGETVAVLQAFPQIAQYYRRRFRHVLVDEYQDTNHAQYVLVRELVGRDSNDGIPPGELCVVGDADQSIYAFRGATIRNIEDFERDYPDTRTILLEQNYRSTQNILSAANSVIARNAGRREKRLWTDAGAGELIVGYVADNEHDEARFVAEEIDALAEGSEITYNDVAVFYRTNNSSRSLEEVLIRAGIPYKVVGGVRFYERKEIRDIVAYLRVLDNPGDAVSLRRILNTPRRGIGDRAEACVAVYAENTGVGFGDALVAAAQGKVPMLNTRAEKAIAGFVEMFDELRGRLDDDLGELVEAVLERTGYRRELEASTDPQELARLDNLNELVSVAHEFSTDRENAAALGPDDEDVPDTGVLADFLERVSLVADADEIPEHGAGVVTLMTLHTAKGLEFPVVFVTGWEDGMFPHMRALDNPTELSEERRLAYVGITRARQRLYVSRAIVRSSWGQPMLNPESRFLREIPQELIDWRRTAPKPSFSAPVSGAGRFGSARPSPTRSGASRRPLLVLQVGDRVTHDKYGLGRVEEVSGVGESAMSLIDFGSSGRVKLMHNHAPVTKL