8RRB | pdb_00008rrb

Galectin-3 with a small molecule inhibitor

• PDB DOI: https://doi.org/10.2210/pdb8RRB/pdb

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


• Deposited: 2024-01-22 Released: 2025-01-29 
• Deposition Author(s): Mac Sweeney, A., Sager, C.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 
  0.177 (Depositor), 0.182 (DCC) 
• R-Value Work: 
  0.161 (Depositor), 0.172 (DCC) 

Starting Model: experimental

Literature

Galectin-3 with a small molecule inhibitor

Remen, L., Zumbrunn, C., Sager, C.P., Grisostomi, C., Mac Sweeney, A., Gatfield, J., Huehn, E., Vercauteren, E., Fournier, E., Schmidt, G., Davenport, R., Iglarz, M., Nayler, O., Bolli, M.H.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 16.85 kDa 
• Atom Count: 1,416 
• Modeled Residue Count: 138 
• Deposited Residue Count: 138 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Galectin-3	A	138	Homo sapiens	Mutation(s): 0  Gene Names: LGALS3, MAC2
UniProt & NIH Common Fund Data Resources
Find proteins for P17931 (Homo sapiens) Explore P17931  Go to UniProtKB:  P17931
PHAROS:  P17931 GTEx:  ENSG00000131981

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1H2P (Subject of Investigation/LOI)	B [auth A]	~{N}-~{tert}-butyl-4-[4-[[(2~{R},3~{R},4~{S},5~{R},6~{R})-6-(hydroxymethyl)-3-methoxy-5-oxidanyl-4-[4-[3,4,5-tris(fluoranyl)phenyl]-1,2,3-triazol-1-yl]oxan-2-yl]methyl]-1,2,3-triazol-1-yl]piperidine-1-carboxamide C28 H37 F3 N8 O5 MZNGHUJSAGCODC-XQNQHWQKSA-N
2PE	C [auth A]	NONAETHYLENE GLYCOL C18 H38 O10 YZUUTMGDONTGTN-UHFFFAOYSA-N
SCN	D [auth A], E [auth A]	THIOCYANATE ION C N S ZMZDMBWJUHKJPS-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free:  0.177 (Depositor), 0.182 (DCC) 
• R-Value Work:  0.161 (Depositor), 0.172 (DCC) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 36.49	α = 90
b = 56.9	β = 90
c = 61.07	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
autoPROC	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-01-29 
Deposition Author(s): Mac Sweeney, A., Sager, C.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2025-01-29
  Type: Initial release