9J77 | pdb_00009j77

Cryo-EM structure of CRL2-FEM1B (dimer 1)

• PDB DOI: https://doi.org/10.2210/pdb9J77/pdb
• EM Map EMD-61196: EMDB EMDataResource

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-08-18 Released: 2025-04-09 
• Deposition Author(s): Zhao, S., Xu, C.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.56 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

TOM20-Driven E3 Ligase Recruitment Regulates Mitochondrial Dynamics Through PLD6

Xu, C., Zhao, S.

(2025) Nat Chem Biol 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 12-mer - A2B2C2D2E2F2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 12-mer - A2B2C2D2E2F1G1 

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

Biological Assembly Evidence: light scattering

Macromolecule Content

• Total Structure Weight: 387.71 kDa 
• Atom Count: 26,209 
• Modelled Residue Count: 3,268 
• Deposited Residue Count: 3,398 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Elongin-C	A [auth G], E [auth C]	96	Homo sapiens	Mutation(s): 0  Gene Names: ELOC, TCEB1
UniProt & NIH Common Fund Data Resources
Find proteins for Q15369 (Homo sapiens) Explore Q15369  Go to UniProtKB:  Q15369
PHAROS:  Q15369 GTEx:  ENSG00000154582

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Elongin-B	B [auth H], F [auth D]	121	Homo sapiens	Mutation(s): 0  Gene Names: ELOB, TCEB2
UniProt & NIH Common Fund Data Resources
Find proteins for Q15370 (Homo sapiens) Explore Q15370  Go to UniProtKB:  Q15370
PHAROS:  Q15370 GTEx:  ENSG00000103363

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
E3 ubiquitin-protein ligase RBX1, N-terminally processed	C [auth I], H [auth E]	96	Homo sapiens	Mutation(s): 0  Gene Names: RBX1, RNF75, ROC1 EC: 2.3.2.32 (UniProt), 2.3.2.27 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P62877 (Homo sapiens) Explore P62877  Go to UniProtKB:  P62877
PHAROS:  P62877 GTEx:  ENSG00000100387

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Cullin-2	D [auth B], J [auth A]	749	Homo sapiens	Mutation(s): 0  Gene Names: CUL2
UniProt & NIH Common Fund Data Resources
Find proteins for Q13617 (Homo sapiens) Explore Q13617  Go to UniProtKB:  Q13617
PHAROS:  Q13617 GTEx:  ENSG00000108094

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein fem-1 homolog B	G [auth J], I [auth F]	627	Homo sapiens	Mutation(s): 0  Gene Names: FEM1B, F1AA, KIAA0396
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UK73 (Homo sapiens) Explore Q9UK73  Go to UniProtKB:  Q9UK73
PHAROS:  Q9UK73 GTEx:  ENSG00000169018

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Poly-UNK	K, L	10	Homo sapiens	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	M [auth I], N [auth I], O [auth I], P [auth E], Q [auth E], R [auth E]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.56 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-04-09 
Deposition Author(s): Zhao, S., Xu, C.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2025-04-09
  Type: Initial release