KEGG ENZYME: 1.13.11.55

ENZYME: 1.13.11.55

Entry

EC 1.13.11.55               Enzyme

Name

sulfur oxygenase/reductase;
SOR;
sulfur oxygenase;
sulfur oxygenase reductase

Class

Oxidoreductases;
Acting on single donors with incorporation of molecular oxygen (oxygenases);
With incorporation of two atoms of oxygen

Sysname

sulfur:oxygen oxidoreductase (hydrogen-sulfide- and sulfite-forming)

Reaction(IUBMB)

4 sulfur + 4 H2O + O2 = 2 hydrogen sulfide + 2 sulfite [RN:R07365]

Reaction(KEGG)

R07365

Substrate

sulfur [CPD:C00087];
H2O [CPD:C00001];
O2 [CPD:C00007]

Product

hydrogen sulfide [CPD:C00283];
sulfite [CPD:C00094]

Comment

This enzyme, which is found in thermophilic microorganisms, contains one mononuclear none-heme iron centre per subunit. Elemental sulfur is both the electron donor and one of the two known acceptors, the other being oxygen. Thiosulfate is also observed as a product, but is likely formed non-enzymically by a reaction between sulfite and sulfur [1]. This enzyme differs from EC 1.13.11.18, sulfur dioxygenase and EC 1.12.98.4, sulfhydrogenase, in that both activities occur simultaneously.

History

EC 1.13.11.55 created 2006

Pathway

ec00920

Sulfur metabolism

ec01100

Metabolic pathways

ec01120

Microbial metabolism in diverse environments

Orthology

K16952

sulfur oxygenase/reductase

Genes

TLO:	J9253_07675

TANI:

J8380_03350

TWN:	L2Y54_03220

TLR:	Thiosp_00861

TNI:	TVNIR_1174 TVNIR_2721

TTI:	THITH_10960

AFY:	BW247_11140

HNA:	Hneap_1222

HAZ:	A9404_02545

ACII:

C4901_16810

ATY:	A9R16_015140

ACZ:	Acaty_c1207

AFI:	Acife_2601

AFP:	K1Y48_06185

ACIY:

MQE22_03080

DBA:

Dbac_1171

SAY:

TPY_0405

SAP:	Sulac_0370

HFV:	R50_0249(sor) R50_1684(sor)

AAE:	aq_455(sor)

PTO:

PTO0801

FAC:	FACI_IFERC01G1555

FAI:

FAD_0535

STO:	STK_11270(sor)

SOH:	D1869_05065

SULL:

EWF20_06205

AHO:

Ahos_0131

AMAN:

B6F84_12165

ABRI:

DFR85_06255

ASUL:

DFR86_10370

AAMB:

D1866_07550

ACIH:

HS5_13850

CSTY:

KN1_02280

STEP:

IC006_0006

SMET:

RQ359_001553

» show all

Reference

1 [PMID:2493451]

Authors

Kletzin A.

Title

Coupled enzymatic production of sulfite, thiosulfate, and hydrogen sulfide from sulfur: purification and properties of a sulfur oxygenase reductase from the facultatively anaerobic archaebacterium Desulfurolobus ambivalens.

Journal

J Bacteriol 171:1638-43 (1989)
DOI:10.1128/JB.171.3.1638-1643.1989

Reference

2 [PMID:1522063]

Authors

Kletzin A

Title

Molecular characterization of the sor gene, which encodes the sulfur oxygenase/reductase of the thermoacidophilic Archaeum Desulfurolobus ambivalens.

Journal

J Bacteriol 174:5854-9 (1992)
DOI:10.1128/JB.174.18.5854-5859.1992

Sequence

[ag:CAA39952]

Reference

3 [PMID:12664265]

Authors

Sun CW, Chen ZW, He ZG, Zhou PJ, Liu SJ.

Title

Purification and properties of the sulfur oxygenase/reductase from the acidothermophilic archaeon, Acidianus strain S5.

Journal

Extremophiles 7:131-4 (2003)
DOI:10.1007/s00792-002-0304-5

Reference

4 [PMID:15030315]

Authors

Urich T, Bandeiras TM, Leal SS, Rachel R, Albrecht T, Zimmermann P, Scholz C, Teixeira M, Gomes CM, Kletzin A

Title

The sulphur oxygenase reductase from Acidianus ambivalens is a multimeric protein containing a low-potential mononuclear non-haem iron centre.

Journal

Biochem J 381:137-46 (2004)
DOI:10.1042/BJ20040003

Other DBs

ExplorEnz - The Enzyme Database:

1.13.11.55

IUBMB Enzyme Nomenclature:

1.13.11.55

ExPASy - ENZYME nomenclature database:

1.13.11.55

BRENDA, the Enzyme Database:

1.13.11.55

CAS:	120598-92-7

DBGET integrated database retrieval system