Compared with other know genes, it is most similar to the dissimilatory sulfite reductase gene from ?Desulfovibrio desulfricans?(Essex 6), with a identity of 89% at nucleotide sequence and 94% at amino acid sequence deduced from DNA sequence.

• 与已报道的同类基因相比；该基因与脱硫脱硫弧菌(Essex6株)的异化型亚硫酸盐还原菌最为接近；核苷酸序列的同一性为89%25；氨基酸序列的同一性约为94%25.