We searched in Bacillus subtilis for proteins that bind preferentially to c
urved DNA, Two proteins of 9 and 15 kDa displaying this property were purif
ied from exponentially growing cells of B. subtilis strain 168. Sequencing
of N-terminal amino acids identified them as the proteins HBsu and L17 resp
ectively. The overproduction of L17 from B. subtilis in Escherichia coli wa
s shown to have a strong effect on nucleoid morphology and segregation. (C)
2000 Societe francaise de biochimie et biologie moleculaire/ Editions scie
ntifiques et medicales Elsevier SAS.