The nucleotide (nt) sequence of the recA gene of Leptospira biflexa se
rovar patoc strain Patoc I has been determined. The deduced amino acid
(aa) sequence of the RecA protein is 387 aa long with a predicted mol
ecular mass of 42 355 Da. The aa sequence has a high degree of identit
y to the aa sequences of many bacterial RecA, including Pseudomonas fl
uorescens, Escherichia coli and Bacillus subtilis. This is the first r
ecA sequence reported for a bacterium in the order Spirochaetales.