KEGG   ENZYME: 1.8.2.1
Entry
EC 1.8.2.1                  Enzyme                                 

Name
sulfite dehydrogenase (cytochrome);
sulfite cytochrome c reductase;
sulfite-cytochrome c oxidoreductase;
sulfite oxidase (ambiguous);
sulfite dehydrogenase (ambiguous);
sorAB (gene names)
Class
Oxidoreductases;
Acting on a sulfur group of donors;
With a cytochrome as acceptor
Sysname
sulfite:ferricytochrome-c oxidoreductase
Reaction(IUBMB)
sulfite + 2 ferricytochrome c + H2O = sulfate + 2 ferrocytochrome c + 2 H+ [RN:R00528]
Reaction(KEGG)
R00528
Substrate
sulfite [CPD:C00094];
ferricytochrome c [CPD:C00125];
H2O [CPD:C00001]
Product
sulfate [CPD:C00059];
ferrocytochrome c [CPD:C00126];
H+ [CPD:C00080]
Comment
Associated with cytochrome c-551. The enzyme from the bacterium Starkeya novella contains a molybdopyranopterin cofactor and a smaller monoheme cytochrome c subunit. cf. EC 1.8.5.6, sulfite dehydrogenase (quinone).
History
EC 1.8.2.1 created 1972, modified 2016
Pathway
ec00920  Sulfur metabolism
ec01100  Metabolic pathways
ec01120  Microbial metabolism in diverse environments
Orthology
K00386  sulfite dehydrogenase (cytochrome) subunit B
K05301  sulfite dehydrogenase (cytochrome) subunit A
Genes
VAQ: FIV01_18305 FIV01_18310
PUM: HGP31_22250
SHEW: CKQ84_18615
CPS: CPS_4929
MEIN: methR_P0891
HCAM: I4484_08930
IFL: C1H71_17760
RSO: RSc0813(sorAa)
RSC: RCFBP_20603(sorA)
RSL: RPSI07_2531(sorA)
RSM: CMR15_30083(sorA)
RSE: F504_834
REH: H16_B0860(h16_B0860)
RME: Rmet_4891(sorA)
CTI: RALTA_B0718(sorA)
CGD: CR3_3788(yedY)
PNU: Pnuc_1487
PPUL: RO07_07630
PSPU: NA29_03510
PAPI: SG18_08070
AXY: AXYL_00293(sorA)
AXX: ERS451415_00305(yedY_1)
AMIM: MIM_c12620(sorA)
PNA: Pnap_2692
CARE: LT85_2006
MEH: M301_1844
NIM: W01_17110(sorA)
AZA: AZKH_2518(sorA)
ALK: ALEK_2040(sorA)
BJA: blr7257(blr7257) blr7258(blr7258)
BRO: BRAD285_4772(sorB) BRAD285_4773(sorA)
MDI: METDI0784(sorA) METDI0785
MSC: BN69_1367
SINB: SIDU_18040
SPHT: K426_21194
BLAS: BSY18_3685(sorA)
MEAP: MTHMO_1534(suox)
 » show all
Reference
1
  Authors
Charles, A.M. and Suzuki, I.
  Title
Purification and properties of sulfite:cytochrome c oxidoreductase from Thiobacillus novellus.
  Journal
Biochim Biophys Acta 128:522-534 (1966)
Reference
2  [PMID:5438321]
  Authors
Lyric RM, Suzuki I
  Title
Enzymes involved in the metabolism of thiosulfate by Thiobacillus thioparus. I. Survey of enzymes and properties of sulfite: cytochrome c oxidoreductase.
  Journal
Can J Biochem 48:334-43 (1970)
DOI:10.1139/o70-056
Reference
3
  Authors
Yamanaka, T., Yoshioka, T. and Kimura, K.
  Title
Purification of sulphite cytocrome c reductase of Thiobacillus novellus and reconstitution of its sulphite oxidase system with the purified constituents.
  Journal
Plant and Cell Physiol 22:631-622 (1981)
Reference
4
  Authors
Lu, W.-P. and Kelly, D.P.
  Title
Properties and role of sulphite:cytochrome c oxidoreductase purified from Thiobacillus versutus (A2).
  Journal
J Gen Microbiol 130:1683-1692 (1984)
Reference
5  [PMID:10788424]
  Authors
Kappler U, Bennett B, Rethmeier J, Schwarz G, Deutzmann R, McEwan AG, Dahl C
  Title
Sulfite:Cytochrome c oxidoreductase from Thiobacillus novellus. Purification, characterization, and molecular biology of a heterodimeric member of the sulfite  oxidase family.
  Journal
J Biol Chem 275:13202-12 (2000)
DOI:10.1074/jbc.275.18.13202
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 1.8.2.1
IUBMB Enzyme Nomenclature: 1.8.2.1
ExPASy - ENZYME nomenclature database: 1.8.2.1
BRENDA, the Enzyme Database: 1.8.2.1
CAS: 37256-47-6

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