ジャーナル: Proc Natl Acad Sci U S A / 年: 2023 タイトル: Structure of the - respiratory supercomplex from . 著者: Justin M Di Trani / Andreea A Gheorghita / Madison Turner / Peter Brzezinski / Pia Ädelroth / Siavash Vahidi / P Lynne Howell / John L Rubinstein / 要旨: Energy conversion by electron transport chains occurs through the sequential transfer of electrons between protein complexes and intermediate electron carriers, creating the proton motive force that ...Energy conversion by electron transport chains occurs through the sequential transfer of electrons between protein complexes and intermediate electron carriers, creating the proton motive force that enables ATP synthesis and membrane transport. These protein complexes can also form higher order assemblies known as respiratory supercomplexes (SCs). The electron transport chain of the opportunistic pathogen is closely linked with its ability to invade host tissue, tolerate harsh conditions, and resist antibiotics but is poorly characterized. Here, we determine the structure of a SC that forms between the quinol:cytochrome oxidoreductase (cytochrome ) and one of the organism's terminal oxidases, cytochrome , which is found only in some bacteria. Remarkably, the SC structure also includes two intermediate electron carriers: a diheme cytochrome and a single heme cytochrome . Together, these proteins allow electron transfer from ubiquinol in cytochrome to oxygen in cytochrome . We also present evidence that different isoforms of cytochrome can participate in formation of this SC without changing the overall SC architecture. Incorporating these different subunit isoforms into the SC would allow the bacterium to adapt to different environmental conditions. Bioinformatic analysis focusing on structural motifs in the SC suggests that cytochrome - SCs also exist in other bacterial pathogens.
履歴
登録
2023年4月26日
登録サイト: RCSB / 処理サイト: RCSB
改定 1.0
2023年10月11日
Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: EM metadata / Data content type: EM metadata / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 2 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 3 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 4 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 5 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 6 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 7 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 8 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 2 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 3 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 4 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 5 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 6 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 7 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Additional map / Part number: 8 / Data content type: Additional map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Image / Data content type: Image / Provider: repository / タイプ: Initial release
改定 1.0
2023年10月11日
Data content type: Primary map / Data content type: Primary map / Provider: repository / タイプ: Initial release
Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / カテゴリ: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name