[DsrC protein]-trisulfide + NAD(+) + 3 H2O = [DsrC protein]-dithiol + sulfite + NADH + 3 H(+)
[dsrc protein]-trisulfide + nad(+) + 3 h2o = [dsrc protein]-dithiol + sulfite + nadh + 3 h(+)
"dissimilatory sulfite reductase"
"dissimilatory sulfite reductase"