6IQW

Cryo-EM structure of Csm effector complex

• PDB DOI: https://doi.org/10.2210/pdb6IQW/pdb
• EM Map EMD-9708: EMDB EMDataResource
• NAKB: 6IQW

• Classification: RNA BINDING PROTEIN/RNA
• Organism(s): Thermococcus onnurineus NA1
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2018-11-09 Released: 2019-01-16 
• Deposition Author(s): Huo, Y., Li, T., Wang, N., Dong, Q., Wang, X., Jiang, T.
• Funding Organization(s): Chinese Academy of Sciences, National Science Foundation (China)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.35 Å
• Aggregation State: 3D ARRAY 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structure of Type III-A CRISPR effector complex.

Huo, Y., Li, T., Wang, N., Dong, Q., Wang, X., Jiang, T.

(2018) Cell Res 28: 1195-1197

• PubMed: 30459428 
• DOI: https://doi.org/10.1038/s41422-018-0115-6
• Primary Citation of Related Structures:  
  6IQW

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Organizational Affiliation: 

National Laboratory of Macromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China. [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A2B1C1D1E1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 261.81 kDa 
• Atom Count: 16,935 
• Modelled Residue Count: 2,097 
• Deposited Residue Count: 2,263 
• Unique protein chains: 5
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Csm1	A	777	Thermococcus onnurineus NA1	Mutation(s): 0  Gene Names: TON_0893 EC: 3.1 (UniProt), 2.7.7 (UniProt)
UniProt
Find proteins for B6YWB8 (Thermococcus onnurineus (strain NA1)) Explore B6YWB8  Go to UniProtKB:  B6YWB8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Csm2	B	196	Thermococcus onnurineus NA1	Mutation(s): 0  Gene Names: TON_0894
UniProt
Find proteins for B6YWB9 (Thermococcus onnurineus (strain NA1)) Explore B6YWB9  Go to UniProtKB:  B6YWB9

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Csm3	C, D	290	Thermococcus onnurineus NA1	Mutation(s): 0  Gene Names: TON_0895
UniProt
Find proteins for B6YWC0 (Thermococcus onnurineus (strain NA1)) Explore B6YWC0  Go to UniProtKB:  B6YWC0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Csm4	E	289	Thermococcus onnurineus NA1	Mutation(s): 0  Gene Names: TON_0896
UniProt
Find proteins for B6YWC1 (Thermococcus onnurineus (strain NA1)) Explore B6YWC1  Go to UniProtKB:  B6YWC1

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Csm5	F	397	Thermococcus onnurineus NA1	Mutation(s): 0  Gene Names: TON_0897
UniProt
Find proteins for B6YWC2 (Thermococcus onnurineus (strain NA1)) Explore B6YWC2  Go to UniProtKB:  B6YWC2

Entity ID: 6
Molecule	Chains	Length	Organism	Image
RNA (5'-R(*GP*UP*GP*GP*AP*AP*AP*GP*UP*GP*GP*CP*CP*CP*GP*AP*AP*AP*CP*CP*CP*UP*UP*C)-3')	G [auth I]	24	Thermococcus onnurineus NA1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	H [auth A]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.35 Å
• Aggregation State: 3D ARRAY 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-01-16 
Deposition Author(s): Huo, Y., Li, T., Wang, N., Dong, Q., Wang, X., Jiang, T.

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Funding Organization	Location	Grant Number
Chinese Academy of Sciences	China	XDB08010301
National Science Foundation (China)	China	31670750

Revision History  

• Version 1.0: 2019-01-16
  Type: Initial release
  
• Version 1.1: 2019-11-06
  Changes: Data collection, Other
• Version 1.2: 2024-10-30
  Changes: Data collection, Database references, Structure summary