1QOT

lectin UEA-II complexed with fucosyllactose and fucosylgalactose

• PDB DOI: https://doi.org/10.2210/pdb1QOT/pdb

• Classification: LECTIN
• Organism(s): Ulex europaeus
• Mutation(s): No 


• Deposited: 1999-11-16 Released: 1999-11-23 
• Deposition Author(s): Loris, R., De Greve, H., Dao-Thi, M.-H., Messens, J., Imberty, A., Wyns, L.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.215 
• R-Value Work: 0.192 
• R-Value Observed: 0.192 

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 107.1 kDa 
• Atom Count: 7,331 
• Modelled Residue Count: 946 
• Deposited Residue Count: 968 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CHITIN BINDING LECTIN, UEA-II	A, B, C, D	242	Ulex europaeus	Mutation(s): 0
UniProt
Find proteins for Q9FVF8 (Ulex europaeus) Explore Q9FVF8  Go to UniProtKB:  Q9FVF8

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose	E, F, H	2		N/A
Glycosylation Resources
GlyTouCan:  G00068MO GlyCosmos:  G00068MO GlyGen:  G00068MO

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-L-fucopyranose-(1-2)-beta-D-galactopyranose-(1-4)-alpha-D-glucopyranose	G	3		N/A
Glycosylation Resources
GlyTouCan:  G94133JU GlyCosmos:  G94133JU GlyGen:  G94133JU

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	K [auth A], N [auth B], Q [auth C], T [auth D]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
MN	I [auth A], L [auth B], O [auth C], R [auth D]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N
CA	J [auth A], M [auth B], P [auth C], S [auth D]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.215 
• R-Value Work: 0.192 
• R-Value Observed: 0.192 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 104.77	α = 90
b = 104.77	β = 90
c = 175.19	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-11-23 
Deposition Author(s): Loris, R., De Greve, H., Dao-Thi, M.-H., Messens, J., Imberty, A., Wyns, L.

Revision History  

• Version 1.0: 1999-11-23
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-07-24
  Changes: Data collection, Derived calculations
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Other, Structure summary
• Version 2.1: 2023-12-13
  Changes: Data collection, Database references, Derived calculations, Refinement description, Structure summary