![]() | This article contains
close paraphrasing of a non-free copyrighted source,
https://www.brenda-enzymes.org/enzyme.php?ecno=1.8.99.5 (
Copyvios report). (April 2020) |
dissimilatory sulfite reductase | |||||||||
---|---|---|---|---|---|---|---|---|---|
Identifiers | |||||||||
EC no. | 1.8.99.5 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
|
Dissimilatory sulfite reductase ( EC 1.8.99.5) is an enzyme that participates in sulfur metabolism in dissimilatory sulfate reduction. [1]
The enzyme is essential in prokaryotic sulfur-based energy metabolism, including sulfate/sulfite reducing organisms, sulfur-oxidizing bacteria, and organosulfonate reducers. In sulfur reducers it catalyses the reduction of sulfite to sulfide (reaction 1), while in sulfur oxidizers it catalyses the opposite reaction (reaction 2). [2] The reaction involves the small protein DsrC, which is present in all the organisms that contain dissimilatory sulfite reductase. [3] During the process an intramolecular trisulfide is formed between two L-cysteine residues of DsrC and the sulfur atom from sulfite. [4] This trisulfide can be reduced by a number of proteins including DsrK and TcmB. [5]
Reaction in organisms performing dissimilatory sulfate reduction:
Reaction in organisms performing sulfur oxidation:
The systematic name of this enzyme class is hydrogen-sulfide:[DsrC sulfur-carrier protein],acceptor oxidoreductase.
This enzyme is different from EC 1.8.1.2, assimilatory sulfite reductase (NADPH), and EC 1.8.7.1, assimilatory sulfite reductase (ferredoxin), which are involved in sulfate assimilation.
![]() | This article contains
close paraphrasing of a non-free copyrighted source,
https://www.brenda-enzymes.org/enzyme.php?ecno=1.8.99.5 (
Copyvios report). (April 2020) |
dissimilatory sulfite reductase | |||||||||
---|---|---|---|---|---|---|---|---|---|
Identifiers | |||||||||
EC no. | 1.8.99.5 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
|
Dissimilatory sulfite reductase ( EC 1.8.99.5) is an enzyme that participates in sulfur metabolism in dissimilatory sulfate reduction. [1]
The enzyme is essential in prokaryotic sulfur-based energy metabolism, including sulfate/sulfite reducing organisms, sulfur-oxidizing bacteria, and organosulfonate reducers. In sulfur reducers it catalyses the reduction of sulfite to sulfide (reaction 1), while in sulfur oxidizers it catalyses the opposite reaction (reaction 2). [2] The reaction involves the small protein DsrC, which is present in all the organisms that contain dissimilatory sulfite reductase. [3] During the process an intramolecular trisulfide is formed between two L-cysteine residues of DsrC and the sulfur atom from sulfite. [4] This trisulfide can be reduced by a number of proteins including DsrK and TcmB. [5]
Reaction in organisms performing dissimilatory sulfate reduction:
Reaction in organisms performing sulfur oxidation:
The systematic name of this enzyme class is hydrogen-sulfide:[DsrC sulfur-carrier protein],acceptor oxidoreductase.
This enzyme is different from EC 1.8.1.2, assimilatory sulfite reductase (NADPH), and EC 1.8.7.1, assimilatory sulfite reductase (ferredoxin), which are involved in sulfate assimilation.