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Open data
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Basic information
Entry | ![]() | |||||||||
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Title | PbuCas13b-crRNA complex, open conformation | |||||||||
![]() | Cas13b crRNA complex treaded withAnti-CRISPR protein AcrVIB1 | |||||||||
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![]() | AcrVIB1 / anti-CRISPR protein / Cas13b / RNA BINDING PROTEIN | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 4.23 Å | |||||||||
![]() | Schmelz S / Lukat P / Blankenfeldt W | |||||||||
Funding support | 1 items
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![]() | Journal: Acta Crystallogr D Struct Biol / Year: 2019 Title: Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix. Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty ...Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / Robert D Oeffner / Billy K Poon / Michael G Prisant / Randy J Read / Jane S Richardson / David C Richardson / Massimo D Sammito / Oleg V Sobolev / Duncan H Stockwell / Thomas C Terwilliger / Alexandre G Urzhumtsev / Lizbeth L Videau / Christopher J Williams / Paul D Adams / ![]() ![]() ![]() Abstract: Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological ...Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological processes and to develop new therapeutics against diseases. The overall structure-solution workflow is similar for these techniques, but nuances exist because the properties of the reduced experimental data are different. Software tools for structure determination should therefore be tailored for each method. Phenix is a comprehensive software package for macromolecular structure determination that handles data from any of these techniques. Tasks performed with Phenix include data-quality assessment, map improvement, model building, the validation/rebuilding/refinement cycle and deposition. Each tool caters to the type of experimental data. The design of Phenix emphasizes the automation of procedures, where possible, to minimize repetitive and time-consuming manual tasks, while default parameters are chosen to encourage best practice. A graphical user interface provides access to many command-line features of Phenix and streamlines the transition between programs, project tracking and re-running of previous tasks. | |||||||||
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) | ![]() ![]() | 21.9 KB 21.9 KB | Display Display | ![]() |
Images | ![]() | 68.4 KB | ||
Filedesc metadata | ![]() | 6.9 KB | ||
Others | ![]() ![]() | 59.5 MB 59.5 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
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Links
EMDB pages | ![]() ![]() |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||
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Annotation | Cas13b crRNA complex treaded withAnti-CRISPR protein AcrVIB1 | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.91 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_51509_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_51509_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Cas13b (cr)RNA complex
Entire | Name: Cas13b (cr)RNA complex |
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Components |
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-Supramolecule #1: Cas13b (cr)RNA complex
Supramolecule | Name: Cas13b (cr)RNA complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Cas13b
Macromolecule | Name: Cas13b / type: protein_or_peptide / ID: 1 / Details: Cas13b / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MQKQDKLFVD RKKNAIFAFP KYITIMENKE KPEPIYYELT DKHFWAAFLN LARHNVYTTI NHINRRLEIA ELKDDGYMMG IKGSWNEQAK KLDKKVRLRD LIMKHFPFLE AAAYEMTNSK SPNNKEQREK EQSEALSLNN LKNVLFIFLE KLQVLRNYYS HYKYSEESPK ...String: MQKQDKLFVD RKKNAIFAFP KYITIMENKE KPEPIYYELT DKHFWAAFLN LARHNVYTTI NHINRRLEIA ELKDDGYMMG IKGSWNEQAK KLDKKVRLRD LIMKHFPFLE AAAYEMTNSK SPNNKEQREK EQSEALSLNN LKNVLFIFLE KLQVLRNYYS HYKYSEESPK PIFETSLLKN MYKVFDANVR LVKRDYMHHE NIDMQRDFTH LNRKKQVGRT KNIIDSPNFH YHFADKEGNM TIAGLLFFVS LFLDKKDAIW MQKKLKGFKD GRNLREQMTN EVFCRSRISL PKLKLENVQT KDWMQLDMLN ELVRCPKSLY ERLREKDRES FKVPFDIFSD DYNAEEEPFK NTLVRHQDRF PYFVLRYFDL NEIFEQLRFQ IDLGTYHFSI YNKRIGDEDE VRHLTHHLYG FARIQDFAPQ NQPEEWRKLV KDLDHFETSQ EPYISKTAPH YHLENEKIGI KFCSAHNNLF PSLQTDKTCN GRSKFNLGTQ FTAEAFLSVH ELLPMMFYYL LLTKDYSRKE SADKVEGIIR KEISNIYAIY DAFANNEINS IADLTRRLQN TNILQGHLPK QMISILKGRQ KDMGKEAERK IGEMIDDTQR RLDLLCKQTN QKIRIGKRNA GLLKSGKIAD WLVNDMMRFQ PVQKDQNNIP INNSKANSTE YRMLQRALAL FGSENFRLKA YFNQMNLVGN DNPHPFLAET QWEHQTNILS FYRNYLEARK KYLKGLKPQN WKQYQHFLIL KVQKTNRNTL VTGWKNSFNL PRGIFTQPIR EWFEKHNNSK RIYDQILSFD RVGFVAKAIP LYFAEEYKDN VQPFYDYPFN IGNRLKPKKR QFLDKKERVE LWQKNKELFK NYPSEKKKTD LAYLDFLSWK KFERELRLIK NQDIVTWLMF KELFNMATVE GLKIGEIHLR DIDTNTANEE SNNILNRIMP MKLPVKTYET DNKGNILKER PLATFYIEET ETKVLKQGNF KALVKDRRLN GLFSFAETTD LNLEEHPISK LSVDLELIKY QTTRISIFEM TLGLEKKLID KYSTLPTDSF RNMLERWLQC KANRPELKNY VNSLIAVRNA FSHNQYPMYD ATLFAEVKKF TLFPSVDTKK IELNIAPQLL EIVGKAIKEI EKSENKN |
-Macromolecule #2: crRNA
Macromolecule | Name: crRNA / type: rna / ID: 2 Details: unprocessed crRNA couldn't proceed without inserting an accession code. However, there is no accession code, since the crRNA is synthetic |
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Source (natural) | Organism: synthetic construct (others) |
Sequence | String: CGUCGCCGUC CAGCUCGACC AGGAUGGGAA GUUGCAUCUG CCUUCUUUUU GAAAGGUAAA AACAACAUCG UCCAUUCCGA C GENBANK: GENBANK: A12345.1 |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 1 mg/mL |
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Buffer | pH: 7 / Details: 20mM HEPES pH7.0 120 mM NaCl 0.5 mM DTT |
Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. / Pretreatment - Atmosphere: AIR / Details: 15 mA |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 283 K / Instrument: FEI VITROBOT MARK IV |
Details | for complex formation PubCas13b (1mg/ml) was mixed with equal amounts of AntiCRISPR protein AcrVIB1. To this complex crRNA in a ratio of 1:0.9 was added prior vitrification. |
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Electron microscopy
Microscope | TFS GLACIOS |
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Specialist optics | Energy filter - Name: TFS Selectris / Energy filter - Slit width: 10 eV |
Software | Name: EPU (ver. 3.3.1.5184) |
Image recording | Film or detector model: TFS FALCON 4i (4k x 4k) / Number real images: 10707 / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.6 µm |
Sample stage | Cooling holder cryogen: NITROGEN |
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Image processing
Startup model | Type of model: INSILICO MODEL / Details: insilco model generated with cryoSPARC in C1 |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 4.23 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. v4.4.0) / Number images used: 120153 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. v4.4.0) |
Final angle assignment | Type: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC (ver. v4.4.0) |