9OZ8 | pdb_00009oz8

Cryo-EM structure of chicken NEL dimer bound with one human NICOL.

• PDB DOI: https://doi.org/10.2210/pdb9OZ8/pdb
• EM Map EMD-71051: EMDB EMDataResource

• Classification: SIGNALING PROTEIN
• Organism(s): Gallus gallus, Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2025-06-05 Released: 2026-02-25 
• Deposition Author(s): An, W.D., Zhang, X.W., Bai, X.C.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.10 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural Basis for the Activation of the Vertebrate ROS1 Receptor by the NEL/NICOL Ligand Complex

An, W.D., Zhang, X.W., Bai, X.C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A2B1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 194.3 kDa 
• Atom Count: 12,811 
• Modeled Residue Count: 1,638 
• Deposited Residue Count: 1,727 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Protein NEL	A [auth B], B [auth C]	816	Gallus gallus	Mutation(s): 0  Gene Names: NEL
UniProt
Find proteins for Q90827 (Gallus gallus) Explore Q90827  Go to UniProtKB:  Q90827
Glycosylation
Glycosylation Sites: 5

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
NELL2-interacting cell ontogeny regulator 1	C [auth A]	95	Homo sapiens	Mutation(s): 0  Gene Names: NICOL1, C4orf48
UniProt & NIH Common Fund Data Resources
Find proteins for Q5BLP8 (Homo sapiens) Explore Q5BLP8  Go to UniProtKB:  Q5BLP8
PHAROS:  Q5BLP8 GTEx:  ENSG00000243449

Oligosaccharides

Help

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D	2		N-Glycosylation

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG (Subject of Investigation/LOI)	E [auth B], F [auth B], G [auth C], H [auth C], I [auth C], J [auth C], K [auth C]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.10 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION
MODEL REFINEMENT	PHENIX	1.21.1_5286

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-02-25 
Deposition Author(s): An, W.D., Zhang, X.W., Bai, X.C.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	--

Revision History  

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