2VJZ

Crystal structure form ultalente insulin microcrystals


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structure of Ultralente-A Microcrystalline Insulin Suspension.

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

(2009) Proteins 74: 1018

  • DOI: 10.1002/prot.22213
  • Primary Citation of Related Structures:  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 s ...

    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. armin.wagner@diamond.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INSULIN A CHAIN
A, C
21Homo sapiensGene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
INSULIN B CHAIN
B, D
30Homo sapiensGene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
B, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
CL
Query on CL

Download SDF File 
Download CCD File 
B, D
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.172 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 79.820α = 90.00
b = 79.820β = 90.00
c = 36.710γ = 120.00
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
AMoREphasing
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance