Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Global Symmetry: Dihedral - D3  (3D View)
Global Stoichiometry: Hetero 12-mer - A6B6 Pseudo Symmetry: Cyclic - C3  (3D View)
Pseudo Stoichiometry: Hetero 12-mer - A3B3C3D3 

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

Macromolecule Content

• Total Structure Weight: 11.91 kDa 
• Atom Count: 906 
• Residue Count: 99 
• Unique protein chains: 2

2VJZ

Crystal structure form ultalente insulin microcrystals

• DOI: 10.2210/pdb2VJZ/pdb

• Classification: HORMONE
• Organism(s): Homo sapiens
• Expression System: Saccharomyces cerevisiae
• Mutation(s): No 


• Deposited: 2007-12-14 Released: 2008-09-16 
• Deposition Author(s): Wagner, A., Diez, J., Schulze-Briese, C., Schluckebier, G.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.239 
• R-Value Work: 0.172 
• R-Value Observed: 0.175 

Literature

Crystal Structure of Ultralente-A Microcrystalline Insulin Suspension.

Wagner, A., Diez, J., Schulze-Briese, C., Schluckebier, G.

(2009) Proteins 74: 1018

• PubMed: 18767151 
• DOI: 10.1002/prot.22213
• Primary Citation of Related Structures:  
  2VJZ, 2VK0


• PubMed Abstract: 
  

Ultralente insulin has been one of the commercially most important insulin preparations in diabetes treatment over the last 50 years. It is a suspension of insulin microcrystals which dissolve slowly following subcutaneous injection. Because of the small crystal size of about 25 x 25 x 5 microm(3) the atomic structure has been elusive until now. Here we present the crystal structures from Ultralente and their precursor microcrystals from the industrial manufacturing process. During this process insulin undergoes a conformational change within the microcrystals. Both structures show canonical folding of the insulin molecules but exhibit a number of new features when compared with other insulin structures. Surprisingly, we found that the Ultralente crystals bind the conservation agent methylparaben, which slows down dissolution of the crystals and thus contributes to the long duration of action.

---

Organizational Affiliation: 

Swiss Light Source, Paul Scherrer Institute, CH-5323 Villigen PSI, Switzerland. [e-mail]

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
INSULIN A CHAIN	A, C	21	Homo sapiens	Mutation(s): 0  Gene Names: INS
Find proteins for P01308 (Homo sapiens) Explore P01308  Go to UniProtKB:  P01308
NIH Common Fund Data Resources
PHAROS  P01308

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
INSULIN B CHAIN	B, D	30	Homo sapiens	Mutation(s): 0  Gene Names: INS
Find proteins for P01308 (Homo sapiens) Explore P01308  Go to UniProtKB:  P01308
NIH Common Fund Data Resources
PHAROS  P01308

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN	B, D	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
CL	B, D	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.239 
• R-Value Work: 0.172 
• R-Value Observed: 0.175 
• Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 79.82	α = 90
b = 79.82	β = 90
c = 36.71	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2007-12-14 
• Released Date: 2008-09-16 
Deposition Author(s): Wagner, A., Diez, J., Schulze-Briese, C., Schluckebier, G.

Revision History 

• Version 1.0: 2008-09-16
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Advisory, Refinement description, Version format compliance
• Version 1.2: 2020-11-18
  Changes: Derived calculations, Other