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Butt JN, Richardson DJ, Zachara JM, Fredrickson JK, Rosso KM, Shi L (2012)
Identification and characterization of MtoA: a decaheme c-type cytochrome of the
neutrophilic Fe(ll)-oxidizing bacterium Sideroxydans lithotrophicus ES-1. Front Microbiol
3:1–11. https://doi.org/10.3389/fmicb.2012.00037
141. Jiao Y, Newman DK (2007) The pio operon is essential for phototrophic Fe(II) oxidation in
Rhodopseudomonas palustris TIE-1. J Bacteriol 189:1765–1773. https://doi.org/10.1128/JB.
00776-06
142. Gupta D, Sutherland MC, Rengasamy K, Meacham JM, Kranz RG, Bose A (2019)
Photoferrotrophs produce a PioAB electron conduit for extracellular electron uptake. MBio
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86. https://doi.org/10.1007/s007750050291
128. Beliaev AS, Saffarini DA (1998) Shewanella putrefaciens mtrB encodes an outer membrane
protein required for Fe (III) and Mn (IV) reduction. J Bacteriol 180:6292–6297
129. Beliaev AS, Saffarini DA, Mclaughlin JL, Hunnicutt D (2001) MtrC, an outer membrane
decahaem c cytochrome required for metal reduction in Shewanella putrefaciens MR-1. Mol
Microbiol 39:722–730. https://doi.org/10.1046/j.1365-2958.2001.02257.x
130. Bücking C, Popp F, Kerzenmacher S, Gescher J (2010) Involvement and specificity of
Shewanella oneidensis outer membrane cytochromes in the reduction of soluble and
solid-phase terminal electron acceptors. FEMS Microbiol Lett 306:144–151. https://doi.org/
10.1111/j.1574-6968.2010.01949.x
131. Richardson DJ, Butt JN, Fredrickson JK, Zachara JM, Shi L, Edwards MJ, White G,
Baiden N, Gates AJ, Marritt SJ, Clarke TA (2012) The ‘porin-cytochrome’ model for
microbe-to-mineral electron transfer. Mol Microbiol 85:201–212. https://doi.org/10.1111/j.
1365-2958.2012.08088.x
132. Edwards M, White G, Butt J, Richardson DJ, Clarke TA (2019) The structure of a biological
insulated transmembrane molecular wire. SSRN Electron J. https://doi.org/10.2139/ssrn.
3445677
133. Firer-Sherwood MA, Ando N, Drennan CL, Elliott SJ (2011) Solution-based structural
analysis of the decaheme cytochrome, MtrA, by small-angle X-ray scattering and analytical
ultracentrifugation. J Phys Chem B 115:11208–11214. https://doi.org/10.1021/jp203603r
134. Myers CR, Myers JM (2002) MtrB is required for proper incorporation of the cytochromes
OmcA and OmcB into the outer membrane of Shewanella putrefaciens MR-1. Appl Environ
Microbiol 68:5585–5594. https://doi.org/10.1128/AEM.68.11.5585
135. Hartshorne RS, Reardon CL, Ross D, Nuester J, Clarke TA, Gates AJ, Mills PC,
Fredrickson JK, Zachara JM, Shi L, Beliaev AS, Marshall MJ, Tien M, Brantley S, Butt JN,
Richardson DJ (2009) Characterization of an electron conduit between bacteria and the
extracellular environment. Proc Natl Acad Sci 106:22169–74. https://doi.
org/10.1073/pnas.0900086106
136. Schicklberger M, Bücking C, Schuetz B, Heide H, Gescher J (2011) Involvement of the
Shewanella oneidensis decaheme cytochrome MtrA in the periplasmic stability of the
b-barrel protein MtrB. Appl Environ Microbiol 77:1520–1523. https://doi.org/10.1128/
AEM.01201-10
137. Gralnick JA, Vali H, Lies DP, Newman DK (2006) Extracellular respiration of dimethyl
sulfoxide by Shewanella oneidensis strain MR-1. Proc Natl Acad Sci 103:4669–4674.
https://doi.org/10.1073/pnas.0505959103
138. Schicklberger M, Sturm G, Gescher J (2013) Genomic plasticity enables a secondary
electron transport pathway in Shewanella oneidensis. Appl Environ Microbiol 79:1150–
1159. https://doi.org/10.1128/AEM.03556-12
139. Richardson DJ, Fredrickson JK, Zachara JM (2012) Electron transport at the
microbe-mineral interface: a synthesis of current research challenges. Biochem Soc Trans
40:1163–1166. https://doi.org/10.1042/BST20120242
140. Liu J, Wang Z, Belchik SM, Edwards MJ, Liu C, Kennedy DW, Merkley ED, Lipton MS,
Butt JN, Richardson DJ, Zachara JM, Fredrickson JK, Rosso KM, Shi L (2012)
Identification and characterization of MtoA: a decaheme c-type cytochrome of the
neutrophilic Fe(ll)-oxidizing bacterium Sideroxydans lithotrophicus ES-1. Front Microbiol
3:1–11. https://doi.org/10.3389/fmicb.2012.00037
141. Jiao Y, Newman DK (2007) The pio operon is essential for phototrophic Fe(II) oxidation in
Rhodopseudomonas palustris TIE-1. J Bacteriol 189:1765–1773. https://doi.org/10.1128/JB.
00776-06
142. Gupta D, Sutherland MC, Rengasamy K, Meacham JM, Kranz RG, Bose A (2019)
Photoferrotrophs produce a PioAB electron conduit for extracellular electron uptake. MBio
10. https://doi.org/10.1128/mBio.02668-19
242
B. M. Fonseca et al.