author_facet Gahura, Ondřej
Šubrtová, Karolína
Váchová, Hana
Panicucci, Brian
Fearnley, Ian M.
Harbour, Michael E.
Walker, John E.
Zíková, Alena
Gahura, Ondřej
Šubrtová, Karolína
Váchová, Hana
Panicucci, Brian
Fearnley, Ian M.
Harbour, Michael E.
Walker, John E.
Zíková, Alena
author Gahura, Ondřej
Šubrtová, Karolína
Váchová, Hana
Panicucci, Brian
Fearnley, Ian M.
Harbour, Michael E.
Walker, John E.
Zíková, Alena
spellingShingle Gahura, Ondřej
Šubrtová, Karolína
Váchová, Hana
Panicucci, Brian
Fearnley, Ian M.
Harbour, Michael E.
Walker, John E.
Zíková, Alena
The FEBS Journal
The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
Cell Biology
Molecular Biology
Biochemistry
author_sort gahura, ondřej
spelling Gahura, Ondřej Šubrtová, Karolína Váchová, Hana Panicucci, Brian Fearnley, Ian M. Harbour, Michael E. Walker, John E. Zíková, Alena 1742-464X 1742-4658 Wiley Cell Biology Molecular Biology Biochemistry http://dx.doi.org/10.1111/febs.14364 <jats:p>The F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases (also called the F<jats:sub>1</jats:sub>F<jats:sub>o</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases or <jats:styled-content style="fixed-case">ATP</jats:styled-content> synthases) are multi‐subunit membrane‐bound molecular machines that produce <jats:styled-content style="fixed-case">ATP</jats:styled-content> in bacteria and in eukaryotic mitochondria and chloroplasts. The structures and enzymic mechanisms of their F<jats:sub>1</jats:sub>‐catalytic domains are highly conserved in all species investigated hitherto. However, there is evidence that the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases from the group of protozoa known as Euglenozoa have novel features. Therefore, we have isolated pure and active F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from the euglenozoan parasite, <jats:italic>Trypanosoma brucei</jats:italic>, and characterized it. All of the usual eukaryotic subunits (α, β, γ, δ, and ε) were present in the enzyme, and, in addition, two unique features were detected. First, each of the three α‐subunits in the F<jats:sub>1</jats:sub>‐domain has been cleaved by proteolysis <jats:italic>in vivo</jats:italic> at two sites eight residues apart, producing two assembled fragments. Second, the <jats:italic>T. brucei</jats:italic> F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase has an additional subunit, called p18, present in three copies per complex. Suppression of expression of p18 affected <jats:italic>in vitro</jats:italic> growth of both the insect and infectious mammalian forms of <jats:italic>T. brucei</jats:italic>. It also reduced the levels of monomeric and multimeric F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complexes and diminished the <jats:italic>in vivo</jats:italic> hydrolytic activity of the enzyme significantly. These observations imply that p18 plays a role in the assembly of the F<jats:sub>1</jats:sub> domain. These unique features of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase extend the list of special characteristics of the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from <jats:italic>T. brucei</jats:italic>, and also, demonstrate that the architecture of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complex is not strictly conserved in eukaryotes.</jats:p> The F<sub>1</sub>‐<scp>ATP</scp>ase from <i>Trypanosoma brucei</i> is elaborated by three copies of an additional p18‐subunit The FEBS Journal
doi_str_mv 10.1111/febs.14364
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publishDateSort 2018
publisher Wiley
recordtype ai
record_format ai
series The FEBS Journal
source_id 49
title The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_unstemmed The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_full The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_fullStr The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_full_unstemmed The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_short The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_sort the f<sub>1</sub>‐<scp>atp</scp>ase from <i>trypanosoma brucei</i> is elaborated by three copies of an additional p18‐subunit
topic Cell Biology
Molecular Biology
Biochemistry
url http://dx.doi.org/10.1111/febs.14364
publishDate 2018
physical 614-628
description <jats:p>The F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases (also called the F<jats:sub>1</jats:sub>F<jats:sub>o</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases or <jats:styled-content style="fixed-case">ATP</jats:styled-content> synthases) are multi‐subunit membrane‐bound molecular machines that produce <jats:styled-content style="fixed-case">ATP</jats:styled-content> in bacteria and in eukaryotic mitochondria and chloroplasts. The structures and enzymic mechanisms of their F<jats:sub>1</jats:sub>‐catalytic domains are highly conserved in all species investigated hitherto. However, there is evidence that the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases from the group of protozoa known as Euglenozoa have novel features. Therefore, we have isolated pure and active F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from the euglenozoan parasite, <jats:italic>Trypanosoma brucei</jats:italic>, and characterized it. All of the usual eukaryotic subunits (α, β, γ, δ, and ε) were present in the enzyme, and, in addition, two unique features were detected. First, each of the three α‐subunits in the F<jats:sub>1</jats:sub>‐domain has been cleaved by proteolysis <jats:italic>in vivo</jats:italic> at two sites eight residues apart, producing two assembled fragments. Second, the <jats:italic>T. brucei</jats:italic> F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase has an additional subunit, called p18, present in three copies per complex. Suppression of expression of p18 affected <jats:italic>in vitro</jats:italic> growth of both the insect and infectious mammalian forms of <jats:italic>T. brucei</jats:italic>. It also reduced the levels of monomeric and multimeric F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complexes and diminished the <jats:italic>in vivo</jats:italic> hydrolytic activity of the enzyme significantly. These observations imply that p18 plays a role in the assembly of the F<jats:sub>1</jats:sub> domain. These unique features of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase extend the list of special characteristics of the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from <jats:italic>T. brucei</jats:italic>, and also, demonstrate that the architecture of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complex is not strictly conserved in eukaryotes.</jats:p>
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author Gahura, Ondřej, Šubrtová, Karolína, Váchová, Hana, Panicucci, Brian, Fearnley, Ian M., Harbour, Michael E., Walker, John E., Zíková, Alena
author_facet Gahura, Ondřej, Šubrtová, Karolína, Váchová, Hana, Panicucci, Brian, Fearnley, Ian M., Harbour, Michael E., Walker, John E., Zíková, Alena, Gahura, Ondřej, Šubrtová, Karolína, Váchová, Hana, Panicucci, Brian, Fearnley, Ian M., Harbour, Michael E., Walker, John E., Zíková, Alena
author_sort gahura, ondřej
container_issue 3
container_start_page 614
container_title The FEBS Journal
container_volume 285
description <jats:p>The F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases (also called the F<jats:sub>1</jats:sub>F<jats:sub>o</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases or <jats:styled-content style="fixed-case">ATP</jats:styled-content> synthases) are multi‐subunit membrane‐bound molecular machines that produce <jats:styled-content style="fixed-case">ATP</jats:styled-content> in bacteria and in eukaryotic mitochondria and chloroplasts. The structures and enzymic mechanisms of their F<jats:sub>1</jats:sub>‐catalytic domains are highly conserved in all species investigated hitherto. However, there is evidence that the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases from the group of protozoa known as Euglenozoa have novel features. Therefore, we have isolated pure and active F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from the euglenozoan parasite, <jats:italic>Trypanosoma brucei</jats:italic>, and characterized it. All of the usual eukaryotic subunits (α, β, γ, δ, and ε) were present in the enzyme, and, in addition, two unique features were detected. First, each of the three α‐subunits in the F<jats:sub>1</jats:sub>‐domain has been cleaved by proteolysis <jats:italic>in vivo</jats:italic> at two sites eight residues apart, producing two assembled fragments. Second, the <jats:italic>T. brucei</jats:italic> F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase has an additional subunit, called p18, present in three copies per complex. Suppression of expression of p18 affected <jats:italic>in vitro</jats:italic> growth of both the insect and infectious mammalian forms of <jats:italic>T. brucei</jats:italic>. It also reduced the levels of monomeric and multimeric F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complexes and diminished the <jats:italic>in vivo</jats:italic> hydrolytic activity of the enzyme significantly. These observations imply that p18 plays a role in the assembly of the F<jats:sub>1</jats:sub> domain. These unique features of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase extend the list of special characteristics of the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from <jats:italic>T. brucei</jats:italic>, and also, demonstrate that the architecture of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complex is not strictly conserved in eukaryotes.</jats:p>
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spelling Gahura, Ondřej Šubrtová, Karolína Váchová, Hana Panicucci, Brian Fearnley, Ian M. Harbour, Michael E. Walker, John E. Zíková, Alena 1742-464X 1742-4658 Wiley Cell Biology Molecular Biology Biochemistry http://dx.doi.org/10.1111/febs.14364 <jats:p>The F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases (also called the F<jats:sub>1</jats:sub>F<jats:sub>o</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases or <jats:styled-content style="fixed-case">ATP</jats:styled-content> synthases) are multi‐subunit membrane‐bound molecular machines that produce <jats:styled-content style="fixed-case">ATP</jats:styled-content> in bacteria and in eukaryotic mitochondria and chloroplasts. The structures and enzymic mechanisms of their F<jats:sub>1</jats:sub>‐catalytic domains are highly conserved in all species investigated hitherto. However, there is evidence that the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ases from the group of protozoa known as Euglenozoa have novel features. Therefore, we have isolated pure and active F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from the euglenozoan parasite, <jats:italic>Trypanosoma brucei</jats:italic>, and characterized it. All of the usual eukaryotic subunits (α, β, γ, δ, and ε) were present in the enzyme, and, in addition, two unique features were detected. First, each of the three α‐subunits in the F<jats:sub>1</jats:sub>‐domain has been cleaved by proteolysis <jats:italic>in vivo</jats:italic> at two sites eight residues apart, producing two assembled fragments. Second, the <jats:italic>T. brucei</jats:italic> F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase has an additional subunit, called p18, present in three copies per complex. Suppression of expression of p18 affected <jats:italic>in vitro</jats:italic> growth of both the insect and infectious mammalian forms of <jats:italic>T. brucei</jats:italic>. It also reduced the levels of monomeric and multimeric F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complexes and diminished the <jats:italic>in vivo</jats:italic> hydrolytic activity of the enzyme significantly. These observations imply that p18 plays a role in the assembly of the F<jats:sub>1</jats:sub> domain. These unique features of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase extend the list of special characteristics of the F‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase from <jats:italic>T. brucei</jats:italic>, and also, demonstrate that the architecture of the F<jats:sub>1</jats:sub>‐<jats:styled-content style="fixed-case">ATP</jats:styled-content>ase complex is not strictly conserved in eukaryotes.</jats:p> The F<sub>1</sub>‐<scp>ATP</scp>ase from <i>Trypanosoma brucei</i> is elaborated by three copies of an additional p18‐subunit The FEBS Journal
spellingShingle Gahura, Ondřej, Šubrtová, Karolína, Váchová, Hana, Panicucci, Brian, Fearnley, Ian M., Harbour, Michael E., Walker, John E., Zíková, Alena, The FEBS Journal, The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit, Cell Biology, Molecular Biology, Biochemistry
title The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_full The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_fullStr The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_full_unstemmed The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_short The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
title_sort the f<sub>1</sub>‐<scp>atp</scp>ase from <i>trypanosoma brucei</i> is elaborated by three copies of an additional p18‐subunit
title_unstemmed The F1‐ATPase from Trypanosoma brucei is elaborated by three copies of an additional p18‐subunit
topic Cell Biology, Molecular Biology, Biochemistry
url http://dx.doi.org/10.1111/febs.14364