- EMDB-11745: Cryo-EM structure of an extracellular contractile injection syste... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-11745
タイトル
Cryo-EM structure of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, the baseplate complex in extended state applied 3-fold symmetry.
マップデータ
試料
複合体: The baseplate complex of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, applied 3-fold symmetry.
タンパク質・ペプチド: baseplate protein (Algo12)
タンパク質・ペプチド: Baseplate_J domain-containing protein
タンパク質・ペプチド: LysM domain-containing protein
タンパク質・ペプチド: Putative tail lysozyme
タンパク質・ペプチド: Phospholipid/glycerol acyltransferase
タンパク質・ペプチド: Putative phage tail sheath protein FI
タンパク質・ペプチド: Phage tail protein
タンパク質・ペプチド: inner protein (Algo6)
タンパク質・ペプチド: Phosphoserine phosphatase SerB
キーワード
extracellular contractile injection system / STRUCTURAL PROTEIN
Protein of unknown function DUF5908 / Family of unknown function (DUF5908) / Contractile injection system tube protein, N-terminal domain / Contractile injection system tube protein / Type VI secretion system, RhsGE-associated Vgr protein / IraD/Gp25-like / Baseplate wedge protein gp25 / Conserved hypothetical protein CHP02241 / Bacteriophage T4, Gp19, tail tube / T4-like virus tail tube protein gp19 ...Protein of unknown function DUF5908 / Family of unknown function (DUF5908) / Contractile injection system tube protein, N-terminal domain / Contractile injection system tube protein / Type VI secretion system, RhsGE-associated Vgr protein / IraD/Gp25-like / Baseplate wedge protein gp25 / Conserved hypothetical protein CHP02241 / Bacteriophage T4, Gp19, tail tube / T4-like virus tail tube protein gp19 / Gp5/Type VI secretion system Vgr protein, OB-fold domain / Type VI secretion system/phage-baseplate injector OB domain / Baseplate protein J-like / Baseplate J-like protein / Vgr protein, OB-fold domain superfamily / : / 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 / Phosphoserine phosphatase SerB / LysM domain-containing protein / Uncharacterized protein / Phospholipid/glycerol acyltransferase / Phage tail protein / Putative phage tail sheath protein FI 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 baseplate complex of an extracellular contractile injection s...
全体
名称: The baseplate complex of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, applied 3-fold symmetry.
要素
複合体: The baseplate complex of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, applied 3-fold symmetry.
タンパク質・ペプチド: baseplate protein (Algo12)
タンパク質・ペプチド: Baseplate_J domain-containing protein
タンパク質・ペプチド: LysM domain-containing protein
タンパク質・ペプチド: Putative tail lysozyme
タンパク質・ペプチド: Phospholipid/glycerol acyltransferase
タンパク質・ペプチド: Putative phage tail sheath protein FI
タンパク質・ペプチド: Phage tail protein
タンパク質・ペプチド: inner protein (Algo6)
タンパク質・ペプチド: Phosphoserine phosphatase SerB
+
超分子 #1: The baseplate complex of an extracellular contractile injection s...
超分子
名称: The baseplate complex of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, applied 3-fold symmetry. タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all
由来(天然)
生物種: Algoriphagus machipongonensis (バクテリア)
+
分子 #1: baseplate protein (Algo12)
分子
名称: baseplate protein (Algo12) / タイプ: protein_or_peptide / ID: 1 詳細: the residues (552-end) are not built up in the model due to the poor map density. コピー数: 6 / 光学異性体: LEVO
名称: Baseplate_J domain-containing protein / タイプ: protein_or_peptide / ID: 2 詳細: The C-terminal part (residues 916-1012aa) is assigned with poly-alanine due to the poor map density. コピー数: 6 / 光学異性体: LEVO
UniProtKB: Baseplate protein J-like domain-containing protein
+
分子 #3: LysM domain-containing protein
分子
名称: LysM domain-containing protein / タイプ: protein_or_peptide / ID: 3 詳細: The residue S169 is not observed in the responding map density, which might be cleaved in the complex. コピー数: 6 / 光学異性体: LEVO
名称: Putative phage tail sheath protein FI / タイプ: protein_or_peptide / ID: 6 詳細: the residues 288-320 aa could not be built up due to the poor map density, with the residues 430-446 assigned poly-alanine chain. コピー数: 6 / 光学異性体: LEVO
名称: inner protein (Algo6) / タイプ: protein_or_peptide / ID: 8 詳細: the residues (19-28) attributing to the flexible loop are not built up in the model. コピー数: 3 / 光学異性体: LEVO
由来(天然)
生物種: Algoriphagus machipongonensis (バクテリア)
分子量
理論値: 5.714442 KDa
配列
文字列:
MPIEIKELHI KITVDDSNNA GRGGASSGED KQQLVAQCVE QVLDVLKSQK ER
PDB-7aef: Cryo-EM structure of an extracellular contractile injection system in marine bacterium Algoriphagus machipongonensis, the baseplate complex in extended state applied 3-fold symmetry.