An essential bacterial-type cardiolipin synthase mediates cardiolipin formation in a eukaryote
An essential bacterial-type cardiolipin synthase mediates cardiolipin formation in a eukaryote
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一种必需的细菌型心磷脂合酶介导真核生物中的心磷脂形成
DOI:
--
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发表时间:
2012
影响因子:
11.1
通讯作者:
P. Bütikofer
中科院分区:
文献类型:
--
作者:
Mauro Serricchio;P. Bütikofer
Cardiolipin is important for bacterial and mitochondrial stability and function. The final step in cardiolipin biosynthesis is catalyzed by cardiolipin synthase and differs mechanistically between prokaryotes and eukaryotes. To study the importance of cardiolipin synthesis for mitochondrial integrity, membrane protein complex formation, and cell proliferation in the human and animal pathogenic protozoan parasite, Trypanosoma brucei, we generated conditional cardiolipin synthase-knockout parasites. We found that cardiolipin formation in T. brucei procyclic forms is catalyzed by a bacterial-type cardiolipin synthase, providing experimental evidence for a prokaryotic-type cardiolipin synthase in a eukaryotic organism. Ablation of enzyme expression resulted in inhibition of de novo cardiolipin synthesis, reduction in cellular cardiolipin levels, alterations in mitochondrial morphology and function, and parasite death in culture. By using immunofluorescence microscopy and blue-native gel electrophoresis, cardiolipin synthase was shown to colocalize with inner mitochondrial membrane proteins and to be part of a large protein complex. During depletion of cardiolipin synthase, the levels of cytochrome oxidase subunit IV and cytochrome c1, reflecting mitochondrial respiratory complexes IV and III, respectively, decreased progressively.
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DOI:
10.1016/s0005-2760(97)00100-8
发表时间:
1997
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Tropp,BE
通讯作者:
Tropp,BE
影响因子:
1.5
作者:
Sharma,Shvetank;Singha,UjjalK;Chaudhuri,Minu
通讯作者:
Chaudhuri,Minu
影响因子:
3.4
作者:
Schlame, Michael;Ren, Mindong
通讯作者:
Ren, Mindong
影响因子:
3.4
作者:
Acehan, Devrim;Malhotra, Ashim;Schlame, Michael
通讯作者:
Schlame, Michael
影响因子:
2.9
作者:
Robinson,NC;Zborowski,J;Talbert,LH
通讯作者:
Talbert,LH