9SN2 | pdb_00009sn2

Cryo-EM reconstruction of the RUVBL1-RUVBL2-CCDC103 (R2C) complex

• PDB DOI: https://doi.org/10.2210/pdb9SN2/pdb
• EM Map EMD-55046: EMDB EMDataResource

• Classification: CHAPERONE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli, Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2025-09-09 Released: 2026-09-30 
• Deposition Author(s): Munoz-Hernandez, H., Wieczorek, M., Pal, M.
• Funding Organization(s): Royal Society, Biotechnology and Biological Sciences Research Council (BBSRC), Medical Research Council (MRC, United Kingdom), Wellcome Trust, Swiss National Science Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

CCDC103-mediated assembly of the R2C complex links RUVBL1-RUVBL2 to Primary Ciliary Dyskinesia

Munoz-Hernandez, H., Wieczorek, M., Pal, M.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 9-mer - A3B3C3 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 400.27 kDa 
• Atom Count: 20,106 
• Modeled Residue Count: 2,577 
• Deposited Residue Count: 3,579 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RuvB-like 1	A, D [auth B], E [auth C]	480	Homo sapiens	Mutation(s): 0  Gene Names: RUVBL1, INO80H, NMP238, TIP49, TIP49A EC: 3.6.4.12
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y265 (Homo sapiens) Explore Q9Y265  Go to UniProtKB:  Q9Y265
PHAROS:  Q9Y265 GTEx:  ENSG00000175792

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
RuvB-like 2	B [auth D], F [auth E], G [auth F]	471	Homo sapiens	Mutation(s): 0  Gene Names: RUVBL2, INO80J, TIP48, TIP49B, CGI-46 EC: 3.6.4.12
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y230 (Homo sapiens) Explore Q9Y230  Go to UniProtKB:  Q9Y230
PHAROS:  Q9Y230 GTEx:  ENSG00000183207

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Dynein axonemal assembly factor 19	C [auth G], H, I	242	Homo sapiens	Mutation(s): 0  Gene Names: DNAAF19, CCDC103
UniProt & NIH Common Fund Data Resources
Find proteins for Q8IW40 (Homo sapiens) Explore Q8IW40  Go to UniProtKB:  Q8IW40
PHAROS:  Q8IW40 GTEx:  ENSG00000167131

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP	J [auth A], K [auth D], L [auth B], M [auth C], N [auth E], O [auth F]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CSD	C [auth G], H, I	L-PEPTIDE LINKING	C3 H7 N O4 S		CYS

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4
MODEL REFINEMENT	PHENIX	2.0_5750

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-09-30 
Deposition Author(s): Munoz-Hernandez, H., Wieczorek, M., Pal, M.

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Funding Organization	Location	Grant Number
Royal Society	United Kingdom	RG/R2/232314
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/X511158/1
Medical Research Council (MRC, United Kingdom)	United Kingdom	MR/X502753/1
Wellcome Trust	United Kingdom	210719/Z/18/Z/18/Z
Swiss National Science Foundation	Switzerland	310030_208120
Swiss National Science Foundation	Switzerland	TMSGI3_211309

Revision History  

• Version 1.0: 2026-09-30
  Type: Initial release