4Q26 | pdb_00004q26

Crystal Structure of Galectin-1 in Complex with N-Acetyllactosamine

• PDB DOI: https://doi.org/10.2210/pdb4Q26/pdb

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


• Deposited: 2014-04-07 Released: 2015-10-07 
• Deposition Author(s): Grimm, C., Bertleff-Zieschang, N.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 
  0.203 (Depositor), 0.201 (DCC) 
• R-Value Work: 
  0.162 (Depositor), 0.161 (DCC) 
• R-Value Observed: 
  0.163 (Depositor) 

Literature

Crystal Structure of Galectin-1 in Complex with N-Acetyllactosamine

Grimm, C., Bertleff-Zieschang, N.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 generated by PISA (software)

Biological Assembly 4  

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

Biological assembly 4 generated by PISA (software)

Biological Assembly 5  

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

Biological assembly 5 generated by PISA (software)

Biological Assembly 6  

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

Biological assembly 6 generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 61.69 kDa 
• Atom Count: 4,900 
• Modeled Residue Count: 532 
• Deposited Residue Count: 544 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Galectin-1	A, B, C [auth G], D [auth H]	136	Homo sapiens	Mutation(s): 0  Gene Names: LGALS1
UniProt & NIH Common Fund Data Resources
Find proteins for P09382 (Homo sapiens) Explore P09382  Go to UniProtKB:  P09382
PHAROS:  P09382 GTEx:  ENSG00000100097

Oligosaccharides

Help  

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose	E [auth C], F [auth D], G [auth E], H [auth F]	2		N/A
Glycosylation Resources
GlyTouCan: G79333MY GlyCosmos: G79333MY GlyGen: G79333MY

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	I [auth G]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CME	A, B, C [auth G], D [auth H]	L-PEPTIDE LINKING	C5 H11 N O3 S2		CYS

Biologically Interesting Molecules (External Reference) 

1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_900019	E [auth C], F [auth D], G [auth E], H [auth F]	N-acetyl-alpha-lactosamine	Oligosaccharide / Glycan component

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free:  0.203 (Depositor), 0.201 (DCC) 
• R-Value Work:  0.162 (Depositor), 0.161 (DCC) 
• R-Value Observed: 0.163 (Depositor) 

Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.384	α = 90
b = 85.517	β = 90
c = 116.076	γ = 90

Software Package:

Software Name	Purpose
PHASER	phasing
PHENIX	refinement
XDS	data reduction
XDS	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-10-07 
Deposition Author(s): Grimm, C., Bertleff-Zieschang, N.

Revision History  

• Version 1.0: 2015-10-07
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Structure summary
• Version 2.1: 2024-11-06
  Changes: Data collection, Database references, Structure summary