3CNA

STRUCTURE OF CONCANAVALIN A AT 2.4 ANGSTROMS RESOLUTION

• PDB DOI: https://doi.org/10.2210/pdb3CNA/pdb

• Classification: LECTIN (AGGLUTININ)
• Organism(s): Canavalia ensiformis
• Mutation(s): No 


• Deposited: 1976-09-15 Released: 1976-10-11 
• Deposition Author(s): Hardman, K.D., Ainsworth, C.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å

Literature

Structure of concanavalin A at 2.4-A resolution.

Hardman, K.D., Ainsworth, C.F.

(1972) Biochemistry 11: 4910-4919

• PubMed: 4638345 
• DOI: https://doi.org/10.1021/bi00776a006
• Primary Citation of Related Structures:  
  3CNA

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 25.69 kDa 
• Atom Count: 1,813 
• Modelled Residue Count: 237 
• Deposited Residue Count: 237 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CONCANAVALIN A	A	237	Canavalia ensiformis	Mutation(s): 0
UniProt
Find proteins for P02866 (Canavalia ensiformis) Explore P02866  Go to UniProtKB:  P02866

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MN	B [auth A]	MANGANESE (II) ION Mn WAEMQWOKJMHJLA-UHFFFAOYSA-N
CA	C [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.40 Å
• Space Group: I 2 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.15	α = 90
b = 86.91	β = 90
c = 89.25	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1976-10-11 
Deposition Author(s): Hardman, K.D., Ainsworth, C.F.

Revision History  

• Version 1.0: 1976-10-11
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-21
  Changes: Data collection, Database references, Derived calculations, Other