6INS

X-RAY ANALYSIS OF THE SINGLE CHAIN B29-A1 PEPTIDE-LINKED INSULIN MOLECULE. A COMPLETELY INACTIVE ANALOGUE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

X-ray analysis of the single chain B29-A1 peptide-linked insulin molecule. A completely inactive analogue.

Derewenda, U.Derewenda, Z.Dodson, E.J.Dodson, G.G.Bing, X.Markussen, J.

(1991) J.Mol.Biol. 220: 425-433


  • PubMed Abstract: 
  • A crystal structure of a totally inactive insulin molecule has been determined. For this insulin molecule, the first without detectable activity to be characterized, the A and B-chains are linked by a peptide bond between A1 Gly and B29 Lys. The mole ...

    A crystal structure of a totally inactive insulin molecule has been determined. For this insulin molecule, the first without detectable activity to be characterized, the A and B-chains are linked by a peptide bond between A1 Gly and B29 Lys. The molecule has retained all its normal self-association properties and it can also accommodate the two different conformations designated T and R, as seen in 4Zn native pig insulin crystals. The hexamers of the crosslinked insulin molecule were crystallized using the 4Zn insulin recipe of Schlichtkrull. The structure has been crystallographically refined with data extending to 2 A using restrained least-square methods. Comparison of the B29-A1 peptide crosslink insulin and the 4Zn native insulin reveals close structural similarities with the native dimer. The analysis of the structure confirms the earlier hypothesis that insulin structures in crystals are not in an active conformation and that a separation of N-terminal A-chain and C-terminal B-chain is required for interaction with the insulin receptor.


    Related Citations: 
    • The Structure of 2Zn Pig Insulin Crystals at 1.5 Angstroms Resolution
      Baker, E.N.,Blundell, T.L.,Cutfield, J.F.,Cutfield, S.M.,Dodson, E.J.,Dodson, G.G.,Crowfoot Hodgkin, D.M.,Hubbard, R.E.,Isaacs, N.W.,Reynolds, C.D.,Sakabe, K.,Sakabe, N.,Vijayan, N.M.
      (1988) Philos.Trans.R.Soc.London,Ser.B 319: 369


    Organizational Affiliation

    Department of Chemistry, University of York, Heslington, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INSULIN
E, F
50Sus scrofaMutation(s): 0 
Gene Names: INS
Find proteins for P01315 (Sus scrofa)
Go to Gene View: INS
Go to UniProtKB:  P01315
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
E, F
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 79.220α = 90.00
b = 79.220β = 90.00
c = 37.750γ = 120.00
Software Package:
Software NamePurpose
PROLSQrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance