1.8.99.5: dissimilatory sulfite reductase

This is an abbreviated version!
For detailed information about dissimilatory sulfite reductase, go to the full flat file.

Word Map on EC 1.8.99.5

Reaction

a [DsrC protein]-S-sulfanyl-L-cysteine
+ 2 acceptor + 3 H2O =
sulfite
+
a [DsrC protein]-dithiol
+ 2 reduced acceptor + 2 H+

Synonyms

dSiR, DsrA, DsrAB, DsrC, DsvA, DsvB, hydrogen-sulfide:(acceptor) oxidoreductase, octahaemcytochrome c MccA, PAE2566, SiRA, siroheme sulfite reductase, sulfite reductase

ECTree

     1 Oxidoreductases
         1.8 Acting on a sulfur group of donors
             1.8.99 With unknown physiological acceptors
                1.8.99.5 dissimilatory sulfite reductase

Natural Substrates Products

Natural Substrates Products on EC 1.8.99.5 - dissimilatory sulfite reductase

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
hydrogen sulfide + a [DsrC protein]-disulfide + acceptor + H2O
sulfite + a [DsrC protein]-dithiol + reduced acceptor + H+
show the reaction diagram
sulfite + 6 ferrocytochrome c + 6 H+
sulfide + 6 ferricytochrome c + 3 H2O
show the reaction diagram
overall transfer of 6 electrons during the reaction
-
-
?
additional information
?
-
multiheme cytochrome c enzymes catalyse complex-multi-electron redox reactions and bind their substrates through the free electron pairs of a heteroatom to a free coordination position at an active-site hem group. Electrons are then provided or accepted by the tightly coupled chain of heme groups
-
-
?