8ZAZ | pdb_00008zaz

Crystal structure of Chitinase 3-like protein 1

• PDB DOI: https://doi.org/10.2210/pdb8ZAZ/pdb

• Classification: SIGNALING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Mammalia
• Mutation(s): No 


• Deposited: 2024-04-25 Released: 2025-04-30 
• Deposition Author(s): Zhao, H.L., Huang, M.D., Jiang, L.G.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.31 Å
• R-Value Free: 
  0.257 (Depositor), 0.261 (DCC) 
• R-Value Work: 
  0.201 (Depositor), 0.207 (DCC) 

Starting Model: experimental

Literature

Crystal structure of Chitinase 3-like protein 1

Zhao, H.L., Huang, M.D., Jiang, L.G.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 163.03 kDa 
• Atom Count: 11,724 
• Modeled Residue Count: 1,444 
• Deposited Residue Count: 1,448 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chitinase-3-like protein 1	A, B, C, D	362	Homo sapiens	Mutation(s): 0  Gene Names: CHI3L1
UniProt & NIH Common Fund Data Resources
Find proteins for P36222 (Homo sapiens) Explore P36222  Go to UniProtKB:  P36222
PHAROS:  P36222 GTEx:  ENSG00000133048

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NGA (Subject of Investigation/LOI)	E [auth A], F [auth B], G [auth C], H [auth D]	2-acetamido-2-deoxy-beta-D-galactopyranose C8 H15 N O6 OVRNDRQMDRJTHS-JAJWTYFOSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.31 Å
• R-Value Free:  0.257 (Depositor), 0.261 (DCC) 
• R-Value Work:  0.201 (Depositor), 0.207 (DCC) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 109.48	α = 90
b = 122.39	β = 90
c = 137.11	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-3000	data reduction
HKL-2000	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-04-30 
Deposition Author(s): Zhao, H.L., Huang, M.D., Jiang, L.G.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	82070142

Revision History  

• Version 1.0: 2025-04-30
  Type: Initial release