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Open data
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Basic information
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Title | Zorya anti-bacteriophage defense system ZorC WT | ||||||||||||
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![]() | ANTIVIRAL PROTEIN | ||||||||||||
Function / homology | : ![]() | ||||||||||||
Biological species | ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.6 Å | ||||||||||||
![]() | Hu H / Taylor NMI | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure and mechanism of the Zorya anti-phage defence system. Authors: Haidai Hu / Philipp F Popp / Thomas C D Hughes / Aritz Roa-Eguiara / Nicole R Rutbeek / Freddie J O Martin / Ivo Alexander Hendriks / Leighton J Payne / Yumeng Yan / Dorentina Humolli / ...Authors: Haidai Hu / Philipp F Popp / Thomas C D Hughes / Aritz Roa-Eguiara / Nicole R Rutbeek / Freddie J O Martin / Ivo Alexander Hendriks / Leighton J Payne / Yumeng Yan / Dorentina Humolli / Victor Klein-Sousa / Inga Songailiene / Yong Wang / Michael Lund Nielsen / Richard M Berry / Alexander Harms / Marc Erhardt / Simon A Jackson / Nicholas M I Taylor / ![]() ![]() ![]() ![]() ![]() ![]() Abstract: Zorya is a recently identified and widely distributed bacterial immune system that protects bacteria from viral (phage) infections. Three Zorya subtypes have been identified, each containing ...Zorya is a recently identified and widely distributed bacterial immune system that protects bacteria from viral (phage) infections. Three Zorya subtypes have been identified, each containing predicted membrane-embedded ZorA-ZorB (ZorAB) complexes paired with soluble subunits that differ among Zorya subtypes, notably ZorC and ZorD in type I Zorya systems. Here we investigate the molecular basis of Zorya defence using cryo-electron microscopy, mutagenesis, fluorescence microscopy, proteomics and functional studies. We present cryo-electron microscopy structures of ZorAB and show that it shares stoichiometry and features of other 5:2 inner membrane ion-driven rotary motors. The ZorAB complex contains a dimeric ZorB peptidoglycan-binding domain and a pentameric α-helical coiled-coil tail made of ZorA that projects approximately 70 nm into the cytoplasm. We also characterize the structure and function of the soluble Zorya components ZorC and ZorD, finding that they have DNA-binding and nuclease activity, respectively. Comprehensive functional and mutational analyses demonstrate that all Zorya components work in concert to protect bacterial cells against invading phages. We provide evidence that ZorAB operates as a proton-driven motor that becomes activated after sensing of phage invasion. Subsequently, ZorAB transfers the phage invasion signal through the ZorA cytoplasmic tail to recruit and activate the soluble ZorC and ZorD effectors, which facilitate the degradation of the phage DNA. In summary, our study elucidates the foundational mechanisms of Zorya function as an anti-phage defence system. | ||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 59.8 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 17.1 KB 17.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 8.5 KB | Display | ![]() |
Images | ![]() | 68.2 KB | ||
Filedesc metadata | ![]() | 5.9 KB | ||
Others | ![]() ![]() | 59.5 MB 59.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8r68MC ![]() 8qy7C ![]() 8qycC ![]() 8qydC ![]() 8qyhC ![]() 8qykC ![]() 8qyyC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.832 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_18948_half_map_1.map | ||||||||||||
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Density Histograms |
-Half map: #1
File | emd_18948_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : Zorya anti-bacteriophage defense system ZorC
Entire | Name: Zorya anti-bacteriophage defense system ZorC |
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Components |
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-Supramolecule #1: Zorya anti-bacteriophage defense system ZorC
Supramolecule | Name: Zorya anti-bacteriophage defense system ZorC / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: Zorya protein ZorC EH domain-containing protein
Macromolecule | Name: Zorya protein ZorC EH domain-containing protein / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 65.206457 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MIPALNSLSQ RIAARLSSSQ RDDHYLHNDF HALTAATLDM EKRFDRAERI PSPPQEMRLE ALRRFRLAQE LTEREWRMVF YGLADNDPL YPDQPILLED DTFFPRVNSA IKKRIETKTL KRRDWAALCS SYFAYQHQSP ETNPHWCVLR GHIAQGYLVV K AAIRREKS ...String: MIPALNSLSQ RIAARLSSSQ RDDHYLHNDF HALTAATLDM EKRFDRAERI PSPPQEMRLE ALRRFRLAQE LTEREWRMVF YGLADNDPL YPDQPILLED DTFFPRVNSA IKKRIETKTL KRRDWAALCS SYFAYQHQSP ETNPHWCVLR GHIAQGYLVV K AAIRREKS WMKTIEFYHD IFTPQAGGVI SRQLLAGENN SLSSLEKIAQ IPDSSWLWKR IFTVLLAQLD TLDDPQFLSK IS WLLGLAA QWVRFRDDIM TATLTRYYHS GYRDQSHPAL KQAALEYWDN PQLKSQQNKW HQYVSESVAA MVRGWLAKQD LTH FFELLR GNGDVDQARL HYWLRFANQM GFTRIIMGSD AWQDRGSDFV KFREENKGRL SYLRGGRNFD NAMVMQINDY LFVE FSGTG NAMYAYQIGH APFNPESRTL DINIHLKDQG RCALRLPHAP RAEGYNKVRI TGWMLKYDDE LRKLGIRWMA EEPVR FVDK KVPPPVAMSD IKIINPLRDT AIQHLVKCSS CIVSDNRHKG GILSVQLITP DDTVEKELLR LGFAPVAKEP HRYWIK UniProtKB: UNIPROTKB: A0A4C2FPK5 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON II (4k x 4k) / Average electron dose: 39.5 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 0.5 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |