ExplorEnz: EC 1.16.9.1

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1.16.9.1

Accepted name:

iron:rusticyanin reductase

Reaction:

Fe(II) + rusticyanin = Fe(III) + reduced rusticyanin

Other name(s):

Cyc2 (ambiguous)

Systematic name:

Fe(II):rusticyanin oxidoreductase

Comments:

Contains c-type heme. The enzyme in Acidithiobacillus ferrooxidans is a component of an electron transfer chain from Fe(II), comprising this enzyme, the copper protein rusticyanin, cytochrome c₄, and cytochrome-c oxidase (EC 7.1.1.9).

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Blake, R.C., 2nd and Shute, E.A. Respiratory enzymes of Thiobacillus ferrooxidans. Kinetic properties of an acid-stable iron:rusticyanin oxidoreductase. Biochemistry 33 (1994) 9220–9228. [PMID: 8049223]
2.	Appia-Ayme, C., Bengrine, A., Cavazza, C., Giudici-Orticoni, M.T., Bruschi, M., Chippaux, M. and Bonnefoy, V. Characterization and expression of the co-transcribed cyc1 and cyc2 genes encoding the cytochrome c₄ (c₅₅₂) and a high-molecular-mass cytochrome c from Thiobacillus ferrooxidans ATCC 33020. FEMS Microbiol. Lett. 167 (1998) 171–177. [DOI] [PMID: 9809418]
3.	Yarzabal, A., Brasseur, G., Ratouchniak, J., Lund, K., Lemesle-Meunier, D., DeMoss, J.A. and Bonnefoy, V. The high-molecular-weight cytochrome c Cyc2 of Acidithiobacillus ferrooxidans is an outer membrane protein. J. Bacteriol. 184 (2002) 313–317. [DOI] [PMID: 11741873]
4.	Yarzabal, A., Appia-Ayme, C., Ratouchniak, J. and Bonnefoy, V. Regulation of the expression of the Acidithiobacillus ferrooxidans rus operon encoding two cytochromes c, a cytochrome oxidase and rusticyanin. Microbiology 150 (2004) 2113–2123. [DOI] [PMID: 15256554]
5.	Taha, T.M., Kanao, T., Takeuchi, F. and Sugio, T. Reconstitution of iron oxidase from sulfur-grown Acidithiobacillus ferrooxidans. Appl. Environ. Microbiol. 74 (2008) 6808–6810. [DOI] [PMID: 18791023]
6.	Castelle, C., Guiral, M., Malarte, G., Ledgham, F., Leroy, G., Brugna, M. and Giudici-Orticoni, M.T. A new iron-oxidizing/O₂-reducing supercomplex spanning both inner and outer membranes, isolated from the extreme acidophile Acidithiobacillus ferrooxidans. J. Biol. Chem. 283 (2008) 25803–25811. [DOI] [PMID: 18632666]
7.	Quatrini, R., Appia-Ayme, C., Denis, Y., Jedlicki, E., Holmes, D.S. and Bonnefoy, V. Extending the models for iron and sulfur oxidation in the extreme acidophile Acidithiobacillus ferrooxidans. BMC Genomics 10:394 (2009). [DOI] [PMID: 19703284]

[EC 1.16.9.1 created 2011 as EC 1.16.98.1, transferred 2011 to EC 1.16.9.1]