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- PDB-8j12: Cryo-EM structure of the AsCas12f-sgRNA-target DNA ternary complex -

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Basic information

Entry
Database: PDB / ID: 8j12
TitleCryo-EM structure of the AsCas12f-sgRNA-target DNA ternary complex
Components
  • (DNA (38-MER)) x 2
  • RNA (247-MER)
  • Transposase IS605 OrfB C-terminal domain-containing protein
KeywordsRNA BINDING PROTEIN/DNA/RNA / CRISPR-Cas / RNA BINDING PROTEIN-DNA COMPLEX / RNA BINDING PROTEIN / RNA BINDING PROTEIN-DNA-RNA complex
Function / homology
Function and homology information


endonuclease activity / Hydrolases; Acting on ester bonds / DNA binding / RNA binding / metal ion binding
Similarity search - Function
Transposase IS605, OrfB, C-terminal / Putative transposase DNA-binding domain
Similarity search - Domain/homology
DNA / DNA (> 10) / RNA / RNA (> 10) / RNA (> 100) / CRISPR-associated endodeoxyribonuclease Cas12f1
Similarity search - Component
Biological speciesAcidibacillus sulfuroxidans (bacteria)
Acidibacillus sulfooxidans (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.08 Å
AuthorsHino, T. / Omura, N.S. / Nakagawa, R. / Togashi, T. / Takeda, N.S. / Hiramoto, T. / Tasaka, S. / Hirano, H. / Tokuyama, T. / Uosaki, H. ...Hino, T. / Omura, N.S. / Nakagawa, R. / Togashi, T. / Takeda, N.S. / Hiramoto, T. / Tasaka, S. / Hirano, H. / Tokuyama, T. / Uosaki, H. / Ishiguro, H. / Yamano, H. / Ozaki, Y. / Motooka, D. / Mori, H. / Kirita, Y. / Kise, Y. / Itoh, Y. / Matoba, S. / Aburatani, H. / Yachie, N. / Siksnys, V. / Ohmori, T. / Hoshino, A. / Nureki, O.
Funding support Japan, 1items
OrganizationGrant numberCountry
Japan Agency for Medical Research and Development (AMED) Japan
CitationJournal: To Be Published
Title: Minimal and most efficient genome editing Cas enzyme
Authors: Hino, T. / Omura, N.S. / Nakagawa, R. / Togashi, T. / Takeda, N.S. / Hiramoto, T. / Tasaka, S. / Hirano, H. / Tokuyama, T. / Uosaki, H. / Ishiguro, H. / Yamano, H. / Ozaki, Y. / Motooka, D. ...Authors: Hino, T. / Omura, N.S. / Nakagawa, R. / Togashi, T. / Takeda, N.S. / Hiramoto, T. / Tasaka, S. / Hirano, H. / Tokuyama, T. / Uosaki, H. / Ishiguro, H. / Yamano, H. / Ozaki, Y. / Motooka, D. / Mori, H. / Kirita, Y. / Kise, Y. / Itoh, Y. / Matoba, S. / Aburatani, H. / Yachie, N. / Siksnys, V. / Ohmori, T. / Hoshino, A. / Nureki, O.
History
DepositionApr 12, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 27, 2023Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Transposase IS605 OrfB C-terminal domain-containing protein
B: Transposase IS605 OrfB C-terminal domain-containing protein
D: DNA (38-MER)
E: DNA (38-MER)
C: RNA (247-MER)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)195,86514
Polymers195,5645
Non-polymers3019
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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DNA chain , 2 types, 2 molecules DE

#2: DNA chain DNA (38-MER)


Mass: 11694.576 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Acidibacillus sulfooxidans (bacteria) / Production host: Escherichia coli (E. coli)
#3: DNA chain DNA (38-MER)


Mass: 11689.535 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Acidibacillus sulfooxidans (bacteria) / Production host: Escherichia coli (E. coli)

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Protein / RNA chain , 2 types, 3 molecules ABC

#1: Protein Transposase IS605 OrfB C-terminal domain-containing protein / AsCas12f protein


Mass: 49925.008 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Acidibacillus sulfuroxidans (bacteria) / Gene: BM613_13600 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A2U3D0N8
#4: RNA chain RNA (247-MER)


Mass: 72329.883 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Acidibacillus sulfooxidans (bacteria) / Production host: Escherichia coli (E. coli)

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Non-polymers , 2 types, 9 molecules

#5: Chemical
ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: Mg
#6: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn

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Details

Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: AsCas12f-sgRNA-target DNA / Type: COMPLEX / Entity ID: #1-#4 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Mycolicibacterium mucogenicum (bacteria)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.6
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 1600 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.08 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 79011 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00311302
ELECTRON MICROSCOPYf_angle_d0.43916162
ELECTRON MICROSCOPYf_dihedral_angle_d15.6563150
ELECTRON MICROSCOPYf_chiral_restr0.0361894
ELECTRON MICROSCOPYf_plane_restr0.0031352

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