- EMDB-9123: Flagellar motor averaged map from Borrelia burdorferi reveals the... -
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データベース: EMDB / ID: EMD-9123
タイトル
Flagellar motor averaged map from Borrelia burdorferi reveals the cytoplasmic ATPase complex
マップデータ
A class average shows the 16-fold symmetry at collar and stator region, 23-fold symmetry of the spoke linkers, and 6-fold symmetry of the ATPase.
試料
細胞器官・細胞要素: Borrelia burgdorferi flagellar motor averaged structure shows 16-fold symmetry at collar and stators region, 23 spoke linkers, and 6-fold symmetry of the ATPase.
National Institutes of Health/National Institute Of Allergy and Infectious Diseases
R01AI087949
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases
R01DE023080
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases
R01AI078958
米国
National Institutes of Health/National Institute of Arthritis and Musculoskeletal and Skin Diseases
R01AR060834
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases
R21AI113014
米国
Welch Foundation
AU-1714
米国
引用
ジャーナル: PLoS Biol / 年: 2018 タイトル: Cryo-electron tomography of periplasmic flagella in Borrelia burgdorferi reveals a distinct cytoplasmic ATPase complex. 著者: Zhuan Qin / Jiagang Tu / Tao Lin / Steven J Norris / Chunhao Li / Md A Motaleb / Jun Liu / 要旨: Periplasmic flagella are essential for the distinct morphology and motility of spirochetes. A flagella-specific type III secretion system (fT3SS) composed of a membrane-bound export apparatus and a ...Periplasmic flagella are essential for the distinct morphology and motility of spirochetes. A flagella-specific type III secretion system (fT3SS) composed of a membrane-bound export apparatus and a cytosolic ATPase complex is responsible for the assembly of the periplasmic flagella. Here, we deployed cryo-electron tomography (cryo-ET) to visualize the fT3SS machine in the Lyme disease spirochete Borrelia burgdorferi. We show, for the first time, that the cytosolic ATPase complex is attached to the flagellar C-ring through multiple spokes to form the "spoke and hub" structure in B. burgdorferi. This structure not only strengthens structural rigidity of the round-shaped C-ring but also appears to rotate with the C-ring. Our studies provide structural insights into the unique mechanisms underlying assembly and rotation of the periplasmic flagella and may provide the basis for the development of novel therapeutic strategies against several pathogenic spirochetes.
全体 : Borrelia burgdorferi flagellar motor averaged structure shows 16-...
全体
名称: Borrelia burgdorferi flagellar motor averaged structure shows 16-fold symmetry at collar and stators region, 23 spoke linkers, and 6-fold symmetry of the ATPase.
要素
細胞器官・細胞要素: Borrelia burgdorferi flagellar motor averaged structure shows 16-fold symmetry at collar and stators region, 23 spoke linkers, and 6-fold symmetry of the ATPase.
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超分子 #1: Borrelia burgdorferi flagellar motor averaged structure shows 16-...
超分子
名称: Borrelia burgdorferi flagellar motor averaged structure shows 16-fold symmetry at collar and stators region, 23 spoke linkers, and 6-fold symmetry of the ATPase. タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 詳細: Wild-type, asymmetric in situ structure. It is one of the class averages.
由来(天然)
生物種: Borrelia burgdorferi (バクテリア) / 株: B31 / Organelle: Flagellar motor / 細胞中の位置: Cell tip
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実験情報
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構造解析
手法
クライオ電子顕微鏡法
解析
サブトモグラム平均法
試料の集合状態
cell
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試料調製
緩衝液
pH: 7 詳細: BSK-II liquid medium supplemented with 6% rabbit serum