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- EMDB-19125: DNA bound type IV-A1 CRISPR effector complex with the DinG helica... -

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Basic information

Entry
Database: EMDB / ID: EMD-19125
TitleDNA bound type IV-A1 CRISPR effector complex with the DinG helicase from P. oleovorans
Map datacomposite map used to refine the atomic model
Sample
  • Complex: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA and target DNA
    • Complex: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA
      • Protein or peptide: CRISPR type AFERR-associated protein Csf5
      • Protein or peptide: CRISPR type AFERR-associated protein Csf2
      • Protein or peptide: CRISPR type AFERR-associated protein Csf3
      • Protein or peptide: CRISPR type AFERR-associated protein Csf1
      • RNA: crRNA
      • Protein or peptide: ATP-dependent DNA helicase DinG
    • Complex: Target DNA
      • DNA: Target strand (TS-)DNA
      • DNA: Non-target strand (NTS-) DNA
  • Ligand: ZINC ION
KeywordsCRISPR / crRNA / DNA binding / type IV CRISPR-Cas / CRISPRi / nuclease deficient / GENE REGULATION
Function / homology
Function and homology information


hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides / nucleobase-containing compound metabolic process / helicase activity / nucleic acid binding / ATP binding
Similarity search - Function
CRISPR-associated protein, Csf1 family / CRISPR type IV/AFERR-associated protein Csf2 / ATP-dependent helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain, DinG/Rad3-type / Helicase C-terminal domain / Superfamilies 1 and 2 helicase ATP-binding type-2 domain profile. / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
CRISPR type AFERR-associated protein Csf1 / CRISPR type AFERR-associated protein Csf2 / CRISPR type AFERR-associated protein Csf3 / ATP-dependent DNA helicase DinG / Uncharacterized protein
Similarity search - Component
Biological speciesPseudomonas oleovorans (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.18 Å
AuthorsMiksys A / Cepaite R / Malinauskaite L / Pausch P
Funding supportEuropean Union, 3 items
OrganizationGrant numberCountry
Other government01.2.2-CPVA-V-716-01-0001
European Molecular Biology Organization (EMBO)5342-2023European Union
Other governmentS-MIP-22-10
CitationJournal: Nat Commun / Year: 2024
Title: Structural variation of types IV-A1- and IV-A3-mediated CRISPR interference.
Authors: R Čepaitė / N Klein / A Mikšys / S Camara-Wilpert / V Ragožius / F Benz / A Skorupskaitė / H Becker / G Žvejytė / N Steube / G K A Hochberg / L Randau / R Pinilla-Redondo / L ...Authors: R Čepaitė / N Klein / A Mikšys / S Camara-Wilpert / V Ragožius / F Benz / A Skorupskaitė / H Becker / G Žvejytė / N Steube / G K A Hochberg / L Randau / R Pinilla-Redondo / L Malinauskaitė / P Pausch /
Abstract: CRISPR-Cas mediated DNA-interference typically relies on sequence-specific binding and nucleolytic degradation of foreign genetic material. Type IV-A CRISPR-Cas systems diverge from this general ...CRISPR-Cas mediated DNA-interference typically relies on sequence-specific binding and nucleolytic degradation of foreign genetic material. Type IV-A CRISPR-Cas systems diverge from this general mechanism, using a nuclease-independent interference pathway to suppress gene expression for gene regulation and plasmid competition. To understand how the type IV-A system associated effector complex achieves this interference, we determine cryo-EM structures of two evolutionarily distinct type IV-A complexes (types IV-A1 and IV-A3) bound to cognate DNA-targets in the presence and absence of the type IV-A signature DinG effector helicase. The structures reveal how the effector complexes recognize the protospacer adjacent motif and target-strand DNA to form an R-loop structure. Additionally, we reveal differences between types IV-A1 and IV-A3 in DNA interactions and structural motifs that allow for in trans recruitment of DinG. Our study provides a detailed view of type IV-A mediated DNA-interference and presents a structural foundation for engineering type IV-A-based genome editing tools.
History
DepositionDec 12, 2023-
Header (metadata) releaseNov 6, 2024-
Map releaseNov 6, 2024-
UpdateNov 6, 2024-
Current statusNov 6, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

Downloads & links

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Map

FileDownload / File: emd_19125.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationcomposite map used to refine the atomic model
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.1 Å/pix.
x 360 pix.
= 396. Å
1.1 Å/pix.
x 360 pix.
= 396. Å
1.1 Å/pix.
x 360 pix.
= 396. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.1 Å
Density
Contour LevelBy AUTHOR: 0.581
Minimum - Maximum-0.1628408 - 4.962719
Average (Standard dev.)0.026605288 (±0.07938717)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 396.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: sharpened map of the main body of the complex

Fileemd_19125_additional_1.map
Annotationsharpened map of the main body of the complex
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: unsharpened map of the main body of the complex

Fileemd_19125_additional_2.map
Annotationunsharpened map of the main body of the complex
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: Sharpened composite map processed with EMReady, used for...

Fileemd_19125_additional_3.map
AnnotationSharpened composite map processed with EMReady, used for initial model building
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Half map: Half map of the main map used for reconstruction

Fileemd_19125_half_map_1.map
AnnotationHalf map of the main map used for reconstruction
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Half map: Half map of the main map used for reconstruction

Fileemd_19125_half_map_2.map
AnnotationHalf map of the main map used for reconstruction
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Sample components

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Entire : Type IV-A1 CRISPR-Cas effector complex with the DinG helicase fro...

EntireName: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA and target DNA
Components
  • Complex: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA and target DNA
    • Complex: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA
      • Protein or peptide: CRISPR type AFERR-associated protein Csf5
      • Protein or peptide: CRISPR type AFERR-associated protein Csf2
      • Protein or peptide: CRISPR type AFERR-associated protein Csf3
      • Protein or peptide: CRISPR type AFERR-associated protein Csf1
      • RNA: crRNA
      • Protein or peptide: ATP-dependent DNA helicase DinG
    • Complex: Target DNA
      • DNA: Target strand (TS-)DNA
      • DNA: Non-target strand (NTS-) DNA
  • Ligand: ZINC ION

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Supramolecule #1: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase fro...

SupramoleculeName: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA and target DNA
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #8, #1-#7
Molecular weightTheoretical: 332 KDa

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Supramolecule #2: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase fro...

SupramoleculeName: Type IV-A1 CRISPR-Cas effector complex with the DinG helicase from Pseudomonas oleovorans bound to crRNA
type: complex / ID: 2 / Parent: 1 / Macromolecule list: #8, #1-#4, #7
Source (natural)Organism: Pseudomonas oleovorans (bacteria)

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Supramolecule #3: Target DNA

SupramoleculeName: Target DNA / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #5-#6
Source (natural)Organism: Pseudomonas oleovorans (bacteria)

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Macromolecule #1: CRISPR type AFERR-associated protein Csf2

MacromoleculeName: CRISPR type AFERR-associated protein Csf2 / type: protein_or_peptide / ID: 1 / Number of copies: 5 / Enantiomer: LEVO
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 37.193965 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: MQIEVLIRNI TPIFSAAPGS YYVSLDGTIN PPQGASRFPL TRARTMTVVA ETGDGVAKAV PLPIVPGNTM RNLLRRTMLK DVIEPALRD KSAQLSIGAY ATAYAGNSSG NPDGVPSSFD EIVTMRAHPF LGLFGGGPRM LQGRLMVDSL YPIHQFSQRI I GSDYINDS ...String:
MQIEVLIRNI TPIFSAAPGS YYVSLDGTIN PPQGASRFPL TRARTMTVVA ETGDGVAKAV PLPIVPGNTM RNLLRRTMLK DVIEPALRD KSAQLSIGAY ATAYAGNSSG NPDGVPSSFD EIVTMRAHPF LGLFGGGPRM LQGRLMVDSL YPIHQFSQRI I GSDYINDS IKGGITEIVW TRRNDPILQL GSPDDAAVIE GGAQAANDWI TSLLATTKAK KGKAAKQADE AAESSDDNGR GL KAFNAHE VVIAGVKWLW RINVDRPSES QIGLILLALN KLANQRIAGG HAKDYGRFVI EDVILDGESV WTPSGVSGQA TEQ FFDAIA EALDGMTSSE FEQFAASAKE A

UniProtKB: CRISPR type AFERR-associated protein Csf2

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Macromolecule #2: CRISPR type AFERR-associated protein Csf3

MacromoleculeName: CRISPR type AFERR-associated protein Csf3 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 24.45183 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: MDFLKVTINL GSPMVEPGDL FHLDALLGAL RVSEVRAELG DGINPRDHHY DLPLEQYRSR SGQWVFKASA FHINKGAASQ NWMQTSRIN TAEAARHRSE GFLLLRAAKP NPAGGPFKNS LYHYPLVWAT LTAYCVGDQA RIADLLSQCR QIGGRRGVGC G RVAGFSVE ...String:
MDFLKVTINL GSPMVEPGDL FHLDALLGAL RVSEVRAELG DGINPRDHHY DLPLEQYRSR SGQWVFKASA FHINKGAASQ NWMQTSRIN TAEAARHRSE GFLLLRAAKP NPAGGPFKNS LYHYPLVWAT LTAYCVGDQA RIADLLSQCR QIGGRRGVGC G RVAGFSVE VVPEVECTWA LRAMPDDSEQ SILCGEYALA MSALQSPYWD RSLHKPALVP TSLA

UniProtKB: CRISPR type AFERR-associated protein Csf3

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Macromolecule #3: CRISPR type AFERR-associated protein Csf1

MacromoleculeName: CRISPR type AFERR-associated protein Csf1 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 27.239332 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: MRYPSDVVDQ VFKLPPDKGL LTWDNDPVAC SHCARPIEKG DLYSPSSVGA FFSDTRNLAS TSRSICWRCL ILRKKQMLNG LSYALITQD GVFQISKDTN KAWLFTTPPP APFFVMHSSS TMQHLCWRTP VTLDNRLIKV RYGNNLFVVR PEAIREALEI A DRMNEGQK ...String:
MRYPSDVVDQ VFKLPPDKGL LTWDNDPVAC SHCARPIEKG DLYSPSSVGA FFSDTRNLAS TSRSICWRCL ILRKKQMLNG LSYALITQD GVFQISKDTN KAWLFTTPPP APFFVMHSSS TMQHLCWRTP VTLDNRLIKV RYGNNLFVVR PEAIREALEI A DRMNEGQK KWQAPIFLDR KAADSGHGAL TKAGREHLSA ADQEFLLNIT PGERWALAYI MHSKRPQPEE PECITSKILE KL

UniProtKB: CRISPR type AFERR-associated protein Csf1

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Macromolecule #7: ATP-dependent DNA helicase DinG

MacromoleculeName: ATP-dependent DNA helicase DinG / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 77.969695 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: VEVIRIGAIA PPEKQRSQWA RDKLAEAIEL KLEPIAVPLH EVESFTSTMN PALASQLKRM AKDCNIPLAR LTAGLLAALR RHYEAMEVA PAPVNPETGI PGQSEVREVL LPLLEQSASA IEKGKIVFAE AATGTGKGRM IASLAANAAA KGDTVVISAP L AVTWQLID ...String:
VEVIRIGAIA PPEKQRSQWA RDKLAEAIEL KLEPIAVPLH EVESFTSTMN PALASQLKRM AKDCNIPLAR LTAGLLAALR RHYEAMEVA PAPVNPETGI PGQSEVREVL LPLLEQSASA IEKGKIVFAE AATGTGKGRM IASLAANAAA KGDTVVISAP L AVTWQLID ALKGIREAQV AGITLSLGRP NFVSPDRVLE WAVDNERVEL AAWVEQGGKP LSERTKGASE VIEHELCWML ED ALVLAED LPIDAIMLSP DDDDDCPAQR LYKSMRNNHS EAGIVLCSHY MLAAHVRFMQ LRGLAGEDDP AEPAQSFSLP QAI DTLIVD EAHLLEQAFA AIYSHTLRLR PLVRAIESHV GRGKTPVVNA LNALAQQITR TVQQGKDGGA RVCQLDEVPS LEPA LRDAL TALESISVKS LDGGAKAVIR VAIRAIKDAL SGRSRLRMEL TPVRHFPMLV SGRANLQKAL LSLWDSVAGA ALVSA TIYA SDDHAVLTRW KLEVPPARAI YLPPVHPAWT TEPVVLHPDR NAIEPNDSPE WADETAGLIT KVAERAAGGT LVLCTS YQN AELLQGRLLA VLGERLIVQT KVSSASMCVA QYKALYRAGA RPVWLGVGAA WTGIDLSDEQ ATDPADDAML SDLVITR LP VGLNRSLTHE RRVAIAGFKI VTLEAVWQLR QGLGRLVRRP GVKNKNLWVL DSRIGGNTPW VAPYRKLLSR YRTAPL

UniProtKB: ATP-dependent DNA helicase DinG

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Macromolecule #8: CRISPR type AFERR-associated protein Csf5

MacromoleculeName: CRISPR type AFERR-associated protein Csf5 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 25.635371 KDa
Recombinant expressionOrganism: Escherichia coli BL21(DE3) (bacteria)
SequenceString: MFVTQVIFNM GERAYPDRAR AMVAELMDGV QPGLVATLMN YIPGTSTSRT EFPTVQFGGA SDGFCLLGFG DGGGAIVRDA VPLIHAALA RRMPDRIIQV EHKEHSLSAE ARPYVLSYTV PRMVVQKKQR HAERLLHEAE GKAHLEGLFL RSLQRQAAAV G LPLPENLE ...String:
MFVTQVIFNM GERAYPDRAR AMVAELMDGV QPGLVATLMN YIPGTSTSRT EFPTVQFGGA SDGFCLLGFG DGGGAIVRDA VPLIHAALA RRMPDRIIQV EHKEHSLSAE ARPYVLSYTV PRMVVQKKQR HAERLLHEAE GKAHLEGLFL RSLQRQAAAV G LPLPENLE VEFKGAVGNF AAKHNPNSKV AYRGLRGAVF DVNARLGGIW TAGFMLSKGY GQFNATHQLS GAVNALSE

UniProtKB: Uncharacterized protein

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Macromolecule #4: crRNA

MacromoleculeName: crRNA / type: rna / ID: 4 / Number of copies: 1
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 19.711727 KDa
SequenceString:
GUGAGCGGCA UCCAAGUUAC GCAUCAGAUU CGAGACGCGA GUAUUUCCCG CGUGCGCGGG G

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Macromolecule #5: Target strand (TS-)DNA

MacromoleculeName: Target strand (TS-)DNA / type: dna / ID: 5 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 18.882029 KDa
SequenceString: (DC)(DG)(DG)(DT)(DC)(DG)(DG)(DG)(DT)(DC) (DA)(DT)(DA)(DC)(DG)(DT)(DC)(DG)(DC)(DG) (DT)(DC)(DT)(DC)(DG)(DA)(DA)(DT)(DC) (DT)(DG)(DA)(DT)(DG)(DC)(DG)(DT)(DA)(DA) (DC) (DT)(DT)(DG)(DG)(DA)(DT) ...String:
(DC)(DG)(DG)(DT)(DC)(DG)(DG)(DG)(DT)(DC) (DA)(DT)(DA)(DC)(DG)(DT)(DC)(DG)(DC)(DG) (DT)(DC)(DT)(DC)(DG)(DA)(DA)(DT)(DC) (DT)(DG)(DA)(DT)(DG)(DC)(DG)(DT)(DA)(DA) (DC) (DT)(DT)(DG)(DG)(DA)(DT)(DG)(DC) (DT)(DT)(DC)(DG)(DT)(DG)(DC)(DG)(DT)(DG) (DA)(DT) (DG)

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Macromolecule #6: Non-target strand (NTS-) DNA

MacromoleculeName: Non-target strand (NTS-) DNA / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Pseudomonas oleovorans (bacteria)
Molecular weightTheoretical: 18.663979 KDa
SequenceString: (DC)(DA)(DT)(DC)(DA)(DC)(DG)(DC)(DA)(DC) (DG)(DA)(DA)(DG)(DA)(DC)(DC)(DA)(DA)(DG) (DT)(DC)(DA)(DA)(DT)(DG)(DC)(DT)(DT) (DA)(DG)(DT)(DC)(DT)(DA)(DA)(DT)(DA)(DC) (DC) (DT)(DG)(DC)(DG)(DC)(DT) ...String:
(DC)(DA)(DT)(DC)(DA)(DC)(DG)(DC)(DA)(DC) (DG)(DA)(DA)(DG)(DA)(DC)(DC)(DA)(DA)(DG) (DT)(DC)(DA)(DA)(DT)(DG)(DC)(DT)(DT) (DA)(DG)(DT)(DC)(DT)(DA)(DA)(DT)(DA)(DC) (DC) (DT)(DG)(DC)(DG)(DC)(DT)(DC)(DG) (DT)(DA)(DT)(DG)(DA)(DC)(DC)(DC)(DG)(DA) (DC)(DC) (DG)

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Macromolecule #9: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 9 / Number of copies: 1 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5 / Component:
ConcentrationName
10.0 mMHEPES
150.0 mMNaCl
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 2 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 7 sec. / Pretreatment - Atmosphere: AIR / Details: 20 mA
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS GLACIOS
Image recordingFilm or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Digitization - Dimensions - Width: 4096 pixel / Digitization - Dimensions - Height: 4096 pixel / Number grids imaged: 1 / Number real images: 2332 / Average exposure time: 48.0 sec. / Average electron dose: 30.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsCalibrated defocus max: 2.0 µm / Calibrated defocus min: 1.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm / Nominal magnification: 92000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN

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Image processing

Particle selectionNumber selected: 1022768
Startup modelType of model: NONE / Details: Initial model generated from the data
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Algorithm: BACK PROJECTION / Resolution.type: BY AUTHOR / Resolution: 3.18 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.2) / Number images used: 55924
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 4.2)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. 4.2)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelChain - Source name: AlphaFold / Chain - Initial model type: in silico model
RefinementSpace: REAL / Protocol: AB INITIO MODEL
Output model

PDB-8rfj:
DNA bound type IV-A1 CRISPR effector complex with the DinG helicase from P. oleovorans

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