1SLC | pdb_00001slc

X-RAY CRYSTALLOGRAPHY REVEALS CROSSLINKING OF MAMMALIAN LECTIN (GALECTIN-1) BY BIANTENNARY COMPLEX TYPE SACCHARIDES

• PDB DOI: https://doi.org/10.2210/pdb1SLC/pdb

• Classification: COMPLEX(LECTIN/SACCHARIDE)
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 1994-03-12 Released: 1995-01-26 
• Deposition Author(s): Bourne, Y., Cambillau, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Work: 
  0.194 (Depositor) 
• R-Value Observed: 
  0.194 (Depositor) 

Literature

Crosslinking of mammalian lectin (galectin-1) by complex biantennary saccharides.

Bourne, Y., Bolgiano, B., Liao, D.I., Strecker, G., Cantau, P., Herzberg, O., Feizi, T., Cambillau, C.

(1994) Nat Struct Biol 1: 863-870

• PubMed: 7773775 
• DOI: https://doi.org/10.1038/nsb1294-863
• Primary Citation Related Structures: 
  1SLA, 1SLB, 1SLC


• PubMed Abstract: 
  

  Galectins are beta-galactoside-binding proteins that occur intra- and extracellularly in many animal tissues. They have been proposed to form networks of glycoconjugates on the cell surface, where they may modulate various cell response pathways such as growth, activation and adhesion. The high resolution X-ray crystallographic analyses of three crystal forms of bovine galectin-1 in complex with biantennary saccharides of N-acetyllactosamine type reveal infinite chains of lectin dimers cross-linked through N-acetyllactosamine units located at the end of the oligosaccharide antenna. The oligosaccharide adopts a different low energy conformation in each of the three crystal forms.

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Organizational Affiliation: 
• Laboratoire de Cristallographie et de Cristallisation des Macromolécules Biologiques, CNRS URA 1296, Secteur-Nord, Marseille, France.

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.

Macromolecule Content 

• Total Structure Weight: 61.39 kDa 
• Atom Count: 4,744 
• Modeled Residue Count: 535 
• Deposited Residue Count: 536 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BOVINE GALECTIN-1	A, B, C, D	134	Bos taurus	Mutation(s): 0
UniProt
Find proteins for P11116 (Bos taurus) Explore P11116  Go to UniProtKB:  P11116

Oligosaccharides

Help  

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	E	8		N/A
Glycosylation Resources
GlyTouCan: G41327HW GlyCosmos: G41327HW GlyGen: G41327HW

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose	F	8		N/A
Glycosylation Resources
GlyTouCan: G78383AV GlyCosmos: G78383AV GlyGen: G78383AV

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Work:  0.194 (Depositor) 
• R-Value Observed: 0.194 (Depositor) 

Space Group: P 3₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 77.8	α = 90
b = 77.8	β = 90
c = 85.9	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1995-01-26 
Deposition Author(s): Bourne, Y., Cambillau, C.

Revision History  

• Version 1.0: 1995-01-26
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2024-10-23
  Changes: Data collection, Database references, Structure summary