Bacterial Tellurite Processing Proteins
Tellurite processing proteins from bacteria are those that have been shown to have some biochemical activity and or transformational effect on the tellurite oxyanion (TeO32−).
Tellurite resistance determinants (groups of genes or an operon specifically responsible) have been isolated and characterized by a number of groups. The Ter genes first appeared associated with conjugated plasmids and were described in the 1970s (reviewed by Walter and Taylor 1992). However, there have now been many physiological studies that have identified genes, and/or their gene product, that display a basal activity responsible for tellurite oxyanion processing and in many cases detoxification (Zannoni et al. 2008; Chasteen et al. 2009; Turner et al. 2011). It is also not unusual to find multiple genes within a given bacterium that upon deletion, or overexpression, display a...
- Araya MA, Tantaleán JC, Pérez JM, Fuentes DE, Calderón IL, Saavedra CP, Burra R, Chasteen TG, Vásquez CC (2009) Cloning, purification and characterization of Geobacillus stearothermophilus V uroporphyrinogen-III C-methyltransferase: evaluation of its role in resistance to potassium telluirte in Escherichia coli. Res Microbiol 160:125–133PubMedCrossRefGoogle Scholar
- Borsetti F, Francia F, Turner RJ, Zannoni D (2007) The thiol:disulfide oxidoreductase DsbB mediates the oxidizing effects of the toxic metalloid tellurite (TeO32-) on the plasma membrane redox system of the facultative phototroph Rhodobacter capsulatus. J Bacteriol 189:851–859PubMedCrossRefGoogle Scholar
- Tantalean JC, Araya MA, Saavedra CP, Fuentes DE, Perez JM, Calderon IL, Youderian P, Vasquez CC (2003) The Geobacillus stearothermophilus V iscS gene, encoding cysteine desulfurase, confers resistance to potassium tellurite in Escherichia coli K-12. J Bacteriol 185:5831–5837PubMedCrossRefGoogle Scholar
- Turner RJ, Borghese R, Zannoni D (2011) Microbial reduction of tellurium metalloids as a tool in biotechnology. Biotech Adv. doi 10.1016/j.biotechadv.2011.08.018 (in press)Google Scholar