9MVS | pdb_00009mvs

Activated Leptotrichia buccalis (Lbu) CRISPR-Cas13a bound to AI-designed anti-CRISPR AIcrVIA1

PDB DOI: https://doi.org/10.2210/pdb9MVS/pdb
EM Map EMD-48668: EMDB EMDataResource

Classification: DE NOVO PROTEIN/HYDROLASE/RNA
Organism(s): synthetic construct, Leptotrichia buccalis
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2025-01-15 Released: 2026-02-25
Deposition Author(s): Taveneau, C., Knott, G.J.
Funding Organization(s): Other private

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.43 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Starting Models: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

De novo design of potent CRISPR-Cas13 inhibitors

Taveneau, C., Chai, X.H., D'Silva, J., Bamert, R.S., Hayes, B.K., Calvert, R.W., Curwen, D.J., Munder, F., Martin, L.L., Barr, J.J., Grinter, R., Knott, G.J.

To be published.

Macromolecule Content

Total Structure Weight: 174.95 kDa
Atom Count: 11,346
Modeled Residue Count: 1,261
Deposited Residue Count: 1,327
Unique protein chains: 2
Unique nucleic acid chains: 2

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
AIcrVIA1	A [auth B]	83	synthetic construct	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
CRISPR-associated endoribonuclease Cas13a	B [auth A]	1,162	Leptotrichia buccalis	Mutation(s): 0 Gene Names: cas13a, c2c2, Lebu_1799 EC: 3.1
UniProt
Find proteins for C7NBY4 (Leptotrichia buccalis (strain ATCC 14201 / DSM 1135 / JCM 12969 / NCTC 10249 / C-1013-b)) Explore C7NBY4 Go to UniProtKB: C7NBY4
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	C7NBY4
Sequence Annotations Expand
Reference Sequence

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(by identity cutoff) | 3D Structure

Entity ID: 3
Molecule	Chains	Length	Organism	Image
crRNA	C	56	Leptotrichia buccalis
Sequence Annotations Expand
Reference Sequence

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Entity ID: 4
Molecule	Chains	Length	Organism	Image
Guide complementary activator RNA (aRNA)	D	26	synthetic construct
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.43 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
RECONSTRUCTION	Coot	0.9.4
RECONSTRUCTION	PHENIX	1.18.2
MODEL REFINEMENT	PHENIX	1.18.2

Structure Validation

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Entry History & Funding Information

Deposition Data

Released Date: 2026-02-25

Deposition Author(s):

Funding Organization	Location	Grant Number
Other private	Australia	SMRF2021-276

Revision History (Full details and data files)

Version 1.0: 2026-02-25
Type: Initial release

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.