Iron assimilation and utilization in anaerobic ammonium oxidizing bacteria

[Display omitted] •Anammox bacteria only assimilate ferrous iron.•The Ahb pathway produces heme b in anammox bacteria.•Individual systems may mature periplasmic and anammoxosomal cytochromes c.•The Nif system is the only identified system for Fe–S protein assembly in anammox.•The fate of iron inside...

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Veröffentlicht in:Current opinion in chemical biology 2017-04, Vol.37, p.129-136
Hauptverfasser: Ferousi, Christina, Lindhoud, Simon, Baymann, Frauke, Kartal, Boran, Jetten, Mike SM, Reimann, Joachim
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container_end_page 136
container_issue
container_start_page 129
container_title Current opinion in chemical biology
container_volume 37
creator Ferousi, Christina
Lindhoud, Simon
Baymann, Frauke
Kartal, Boran
Jetten, Mike SM
Reimann, Joachim
description [Display omitted] •Anammox bacteria only assimilate ferrous iron.•The Ahb pathway produces heme b in anammox bacteria.•Individual systems may mature periplasmic and anammoxosomal cytochromes c.•The Nif system is the only identified system for Fe–S protein assembly in anammox.•The fate of iron inside the anammoxosome is unknown. The most abundant transition metal in biological systems is iron. It is incorporated into protein cofactors and serves either catalytic, redox or regulatory purposes. Anaerobic ammonium oxidizing (anammox) bacteria rely heavily on iron-containing proteins – especially cytochromes – for their energy conservation, which occurs within a unique organelle, the anammoxosome. Both their anaerobic lifestyle and the presence of an additional cellular compartment challenge our understanding of iron processing. Here, we combine existing concepts of iron uptake, utilization and metabolism, and cellular fate with genomic and still limited biochemical and physiological data on anammox bacteria to propose pathways these bacteria may employ.
doi_str_mv 10.1016/j.cbpa.2017.03.009
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subjects Ammonium Compounds - metabolism
Bacteria, Anaerobic - metabolism
Biochemistry, Molecular Biology
Biological Transport
Chemical Sciences
Coenzymes - biosynthesis
Iron - metabolism
Life Sciences
Organic chemistry
Oxidation-Reduction
title Iron assimilation and utilization in anaerobic ammonium oxidizing bacteria
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