1FNZ

A bark lectin from robinia pseudoacacia in complex with N-acetylgalactosamine

• PDB DOI: https://doi.org/10.2210/pdb1FNZ/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Robinia pseudoacacia
• Mutation(s): No 


• Deposited: 2000-08-24 Released: 2001-08-24 
• Deposition Author(s): Rabijns, A., Verboven, C., Rouge, P., Barre, A., Van Damme, E.J., Peumans, W.J., De Ranter, C.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.222 
• R-Value Work: 0.197 
• R-Value Observed: 0.199 

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 PISA (software)

Macromolecule Content

• Total Structure Weight: 25.87 kDa 
• Atom Count: 1,958 
• Modelled Residue Count: 234 
• Deposited Residue Count: 237 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BARK AGGLUTININ I, POLYPEPTIDE A	A	237	Robinia pseudoacacia	Mutation(s): 0
UniProt
Find proteins for Q41159 (Robinia pseudoacacia) Explore Q41159  Go to UniProtKB:  Q41159

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A2G	B [auth A]	2-acetamido-2-deoxy-alpha-D-galactopyranose C8 H15 N O6 OVRNDRQMDRJTHS-CBQIKETKSA-N
CA	C [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.05 Å
• R-Value Free: 0.222 
• R-Value Work: 0.197 
• R-Value Observed: 0.199 
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.622	α = 90
b = 76.231	β = 90
c = 118.243	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-08-24 
Deposition Author(s): Rabijns, A., Verboven, C., Rouge, P., Barre, A., Van Damme, E.J., Peumans, W.J., De Ranter, C.J.

Revision History  

• Version 1.0: 2001-08-24
  Type: Initial release
  
• Version 1.1: 2008-03-04
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2024-03-13
  Changes: Data collection, Database references, Structure summary