Wondering whether the enzymes were unique to Japanese individuals, Czjzek's team compared the microbial genomes of 13 Japanese people with those of 18 North Americans.
Five of the Japanese subjects harbored the enzyme, but among the North Americans, "we didn't find a single one," says Czjzek, whose team reports its findings tomorrow inNature.
なるほどねーだはははは大爆笑
