2 4-sulfanylbutanoate + NAD(+) = 4,4'-disulfanyldibutanoate + NADH + H(+)
2 4-sulfanylbutanoate + nad(+) = 4,4'-disulfanyldibutanoate + nadh + h(+)
"4,4'-dithiodibutanoate disulfide reductase"
"4,4'-dithiodibutanoate disulfide reductase"