- EMDB-11750: sub-tomogram averaging of an extracellular contractile injection ... -
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データベース: EMDB / ID: EMD-11750
タイトル
sub-tomogram averaging of an extracellular contractile injection system mutant (effector deficient mutant) in marine bacterium Algoriphagus machipongonensis
マップデータ
試料
複合体: The overall structure of an extracellular contractile injection system mutant in marine bacterium Algoriphagus machipongonensis (effector deficient mutant).
Pvc16, N-terminal / Pvc16 N-terminal domain / Contractile injection system tube protein, N-terminal domain / Contractile injection system tube protein / IraD/Gp25-like / Baseplate wedge protein gp25 / Conserved hypothetical protein CHP02241 / Bacteriophage T4, Gp19, tail tube / T4-like virus tail tube protein gp19 / Baseplate protein J-like ...Pvc16, N-terminal / Pvc16 N-terminal domain / Contractile injection system tube protein, N-terminal domain / Contractile injection system tube protein / IraD/Gp25-like / Baseplate wedge protein gp25 / Conserved hypothetical protein CHP02241 / Bacteriophage T4, Gp19, tail tube / T4-like virus tail tube protein gp19 / Baseplate protein J-like / Baseplate J-like protein / : / Tail sheath protein, C-terminal domain / Phage tail sheath C-terminal domain / LysM domain profile. / LysM domain 類似検索 - ドメイン・相同性
Uncharacterized protein / Baseplate protein J-like domain-containing protein / Putative tail lysozyme / LysM domain-containing protein / Phospholipid/glycerol acyltransferase / Phage tail protein / Putative phage tail sheath protein FI / Uncharacterized protein / Pvc16 N-terminal domain-containing protein 類似検索 - 構成要素
ジャーナル: Nat Microbiol / 年: 2022 タイトル: Identification and structure of an extracellular contractile injection system from the marine bacterium Algoriphagus machipongonensis. 著者: Jingwei Xu / Charles F Ericson / Yun-Wei Lien / Florentine U N Rutaganira / Fabian Eisenstein / Miki Feldmüller / Nicole King / Martin Pilhofer / 要旨: Contractile injection systems (CISs) are phage tail-like nanomachines, mediating bacterial cell-cell interactions as either type VI secretion systems (T6SSs) or extracellular CISs (eCISs). ...Contractile injection systems (CISs) are phage tail-like nanomachines, mediating bacterial cell-cell interactions as either type VI secretion systems (T6SSs) or extracellular CISs (eCISs). Bioinformatic studies uncovered a phylogenetic group of hundreds of putative CIS gene clusters that are highly diverse and widespread; however, only four systems have been characterized. Here we studied a putative CIS gene cluster in the marine bacterium Algoriphagus machipongonensis. Using an integrative approach, we show that the system is compatible with an eCIS mode of action. Our cryo-electron microscopy structure revealed several features that differ from those seen in other CISs: a 'cap adaptor' located at the distal end, a 'plug' exposed to the tube lumen, and a 'cage' formed by massive extensions of the baseplate. These elements are conserved in other CISs, and our genetic tools identified that they are required for assembly, cargo loading and function. Furthermore, our atomic model highlights specific evolutionary hotspots and will serve as a framework for understanding and re-engineering CISs.
全体 : The overall structure of an extracellular contractile injection s...
全体
名称: The overall structure of an extracellular contractile injection system mutant in marine bacterium Algoriphagus machipongonensis (effector deficient mutant).
要素
複合体: The overall structure of an extracellular contractile injection system mutant in marine bacterium Algoriphagus machipongonensis (effector deficient mutant).
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超分子 #1: The overall structure of an extracellular contractile injection s...
超分子
名称: The overall structure of an extracellular contractile injection system mutant in marine bacterium Algoriphagus machipongonensis (effector deficient mutant). タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1