1ZNI

INSULIN

• PDB DOI: https://doi.org/10.2210/pdb1ZNI/pdb

• Classification: HORMONE
• Organism(s): Sus scrofa
• Mutation(s): No 


• Deposited: 1997-09-23 Released: 1998-01-28 
• Deposition Author(s): Turkenburg, M.G.W., Whittingham, J.L., Dodson, G.G., Dodson, E.J., Xiao, B., Bentley, G.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Work: 
  0.178 (Depositor) 

Literature

Structure of insulin in 4-zinc insulin.

Bentley, G., Dodson, E., Dodson, G., Hodgkin, D., Mercola, D.

(1976) Nature 261: 166-168

• PubMed: 1272390 
• DOI: https://doi.org/10.1038/261166a0
• Primary Citation of Related Structures:  
  1ZNI

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Hetero 12-mer - A6B6 Pseudo Symmetry: Cyclic - C3  (Explore in 3D)
Pseudo Stoichiometry: Hetero 12-mer - A6B3C3 

Biological assembly 3 generated by PISA (software)

Biological Assembly 4  

Global Symmetry: Dihedral - D3  (Explore in 3D)
Global Stoichiometry: Hetero 12-mer - A6B6 Pseudo Symmetry: Cyclic - C3  (Explore in 3D)
Pseudo Stoichiometry: Hetero 12-mer - A6B3C3 

Biological assembly 4 generated by PISA (software)

Biological Assembly 5  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 

Biological assembly 5 generated by PISA (software)

Biological Assembly 6  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 4-mer - A2B1C1 Local Symmetry: Cyclic - C2  (Explore in 3D)
Local Stoichiometry: Homo 2-mer - A2 

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

Biological assembly 6 generated by PISA (software)

Biological Assembly 7  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 7 generated by PISA (software)

Biological Assembly 8  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 6-mer - A3B3 

Biological assembly 8 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 11.88 kDa 
• Atom Count: 929 
• Modelled Residue Count: 102 
• Deposited Residue Count: 102 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
INSULIN	A, C	21	Sus scrofa	Mutation(s): 0
UniProt
Find proteins for P01315 (Sus scrofa) Explore P01315  Go to UniProtKB:  P01315

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
INSULIN	B, D	30	Sus scrofa	Mutation(s): 0
UniProt
Find proteins for P01315 (Sus scrofa) Explore P01315  Go to UniProtKB:  P01315

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	E [auth B], F [auth B], J [auth D]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
CL	G [auth B], H [auth B], I [auth B]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Work:  0.178 (Depositor) 

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 80.7	α = 90
b = 80.7	β = 90
c = 37.6	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-01-28 
Deposition Author(s): Turkenburg, M.G.W., Whittingham, J.L., Dodson, G.G., Dodson, E.J., Xiao, B., Bentley, G.A.

Revision History  

• Version 1.0: 1998-01-28
  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: 2017-11-29
  Changes: Derived calculations, Other
• Version 1.4: 2018-07-04
  Changes: Advisory, Data collection, Derived calculations
• Version 1.5: 2024-11-13
  Changes: Data collection, Database references, Derived calculations, Structure summary