Photorhabdus antibacterial Rhs polymorphic toxin inhibits translation through ADP-ribosylation of 23S ribosomal RNA.
Photorhabdus antibacterial Rhs polymorphic toxin inhibits translation through ADP-ribosylation of 23S ribosomal RNA.
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发光杆菌抗菌Rhs多态性毒素通过ADP-核糖基化23 S核糖体RNA抑制翻译。
DOI:
10.1093/nar/gkab608
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发表时间:
2021-08-20
影响因子:
14.9
通讯作者:
Cascales E
中科院分区:
文献类型:
--
作者:
Jurėnas D;Payelleville A;Roghanian M;Turnbull KJ;Givaudan A;Brillard J;Hauryliuk V;Cascales E
Bacteria have evolved sophisticated mechanisms to deliver potent toxins into bacterial competitors or into eukaryotic cells in order to destroy rivals and gain access to a specific niche or to hijack essential metabolic or signaling pathways in the host. Delivered effectors carry various activities such as nucleases, phospholipases, peptidoglycan hydrolases, enzymes that deplete the pools of NADH or ATP, compromise the cell division machinery, or the host cell cytoskeleton. Effectors categorized in the family of polymorphic toxins have a modular structure, in which the toxin domain is fused to additional elements acting as cargo to adapt the effector to a specific secretion machinery. Here we show that Photorhabdus laumondii, an entomopathogen species, delivers a polymorphic antibacterial toxin via a type VI secretion system. This toxin inhibits protein synthesis in a NAD+-dependent manner. Using a biotinylated derivative of NAD, we demonstrate that translation is inhibited through ADP-ribosylation of the ribosomal 23S RNA. Mapping of the modification further showed that the adduct locates on helix 44 of the thiostrepton loop located in the GTPase-associated center and decreases the GTPase activity of the EF-G elongation factor. Photorhabdus laumondii uses its type VI secretion system (T6SS) to deliver a Rhs-linked toxin that ADP-ribosylates the 23S ribosomal RNA in the target bacterial cell to arrest translation.
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影响因子:
6.7
作者:
Cianfanelli FR;Alcoforado Diniz J;Guo M;De Cesare V;Trost M;Coulthurst SJ
通讯作者:
Coulthurst SJ
影响因子:
--
作者:
Aravind L;Zhang D;de Souza RF;Anand S;Iyer LM
通讯作者:
Iyer LM
影响因子:
14.9
作者:
DOUTHWAITE, S
通讯作者:
DOUTHWAITE, S
DOI:
10.1073/pnas.1522510113
发表时间:
2016-03-29
影响因子:
11.1
作者:
Chatzidaki-Livanis, Maria;Geva-Zatorsky, Naama;Comstock, Laurie E.
通讯作者:
Comstock, Laurie E.
影响因子:
2.7
作者:
Glaeser, Angela;Heermann, Ralf
通讯作者:
Heermann, Ralf