Sato T, Harada K, Kobayashi Y
Department of Applied Biological Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Japan.
J Bacteriol. 1996 Jun;178(11):3380-3. doi: 10.1128/jb.178.11.3380-3383.1996.
The spoIVCA gene of Bacillus subtilis encodes a site-specific recombinase, which excises a 48-kb skin element from the chromosomal DNA by DNA rearrangement and creates a new composite gene, sigK, on the chromosome. From spoIVCA mutants, we have isolated Spo+ revertants which have no skin element but have an intact sigK gene. This result suggests that the DNA rearrangement can occur in the absence of spoIVCA.
枯草芽孢杆菌的spoIVCA基因编码一种位点特异性重组酶,该酶通过DNA重排从染色体DNA中切除一个48kb的间隔元件,并在染色体上产生一个新的复合基因sigK。从spoIVCA突变体中,我们分离出了Spo+回复体,它们没有间隔元件,但有完整的sigK基因。这一结果表明,DNA重排在没有spoIVCA的情况下也能发生。