3I3Z

Human insulin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

X-ray investigation of gene-engineered human insulin crystallized from a solution containing polysialic acid.

Timofeev, V.I.Chuprov-Netochin, R.N.Samigina, V.R.Bezuglov, V.V.Miroshnikov, K.A.Kuranova, I.P.

(2010) Acta Crystallogr.,Sect.F 66: 259-263

  • DOI: 10.1107/S1744309110000461
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Attempts to crystallize the noncovalent complex of recombinant human insulin with polysialic acid were carried out under normal and microgravity conditions. Both crystal types belonged to the same space group, I2(1)3, with unit-cell parameters a = b ...

    Attempts to crystallize the noncovalent complex of recombinant human insulin with polysialic acid were carried out under normal and microgravity conditions. Both crystal types belonged to the same space group, I2(1)3, with unit-cell parameters a = b = c = 77.365 A, alpha = beta = gamma = 90.00 degrees. The reported space group and unit-cell parameters are almost identical to those of cubic insulin reported in the PDB. The results of X-ray studies confirmed that the crystals obtained were cubic insulin crystals and that they contained no polysialic acid or its fragments. Electron-density maps were calculated using X-ray diffraction sets from earth-grown and microgravity-grown crystals and the three-dimensional structure of the insulin molecule was determined and refined. The conformation and secondary-structural elements of the insulin molecule in different crystal forms were compared.


    Organizational Affiliation

    Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninsky Prospekt 59, 119333 Moscow, Russia. tostars@mail.ru




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Insulin A chain
A
21Homo sapiensMutation(s): 0 
Gene 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
30Homo sapiensMutation(s): 0 
Gene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.6 Å
  • R-Value Free: 0.195 
  • R-Value Work: 0.174 
  • Space Group: I 21 3
Unit Cell:
Length (Å)Angle (°)
a = 77.365α = 90.00
b = 77.365β = 90.00
c = 77.365γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-01-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance