1HIQ

PARADOXICAL STRUCTURE AND FUNCTION IN A MUTANT HUMAN INSULIN ASSOCIATED WITH DIABETES MELLITUS


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 10 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Paradoxical structure and function in a mutant human insulin associated with diabetes mellitus.

Hua, Q.X.Shoelson, S.E.Inouye, K.Weiss, M.A.

(1993) Proc.Natl.Acad.Sci.USA 90: 582-586


  • PubMed Abstract: 
  • The solution structure of a diabetes-associated mutant human insulin (insulin Los Angeles; PheB24-->Ser) was determined by 13C-edited NMR spectroscopy and distance-geometry/simulated annealing calculations. Among vertebrate insulins PheB24 is invaria ...

    The solution structure of a diabetes-associated mutant human insulin (insulin Los Angeles; PheB24-->Ser) was determined by 13C-edited NMR spectroscopy and distance-geometry/simulated annealing calculations. Among vertebrate insulins PheB24 is invariant, and in crystal structures the aromatic ring appears to anchor the putative receptor-binding surface through long-range packing interactions in the hydrophobic core. B24 substitutions are of particular interest in relation to the mechanism of receptor binding. In one analogue ([GlyB24]insulin), partial unfolding of the B chain has been observed with paradoxical retention of near-native bioactivity. The present study of [SerB24]insulin extends this observation: relative to [GlyB24]insulin, near-native structure is restored despite significant loss of function. To our knowledge, our results provide the first structural study of a diabetes-associated mutant insulin and support the hypothesis that insulin undergoes a change in conformation on receptor binding.


    Related Citations: 
    • Receptor Binding Redefined by a Structural Switch in a Mutant Human Insulin
      Hua, Q.X.,Shoelson, S.E.,Kochoyan, M.,Weiss, M.A.
      (1991) Nature 354: 238
    • Structure and Dynamics of Des-Pentapeptide-Insulin in Solution: The Molten-Globule Hypothesis
      Hua, Q.-X.,Kochoyan, M.,Weiss, M.A.
      (1992) Proc.Natl.Acad.Sci.USA 89: 2379


    Organizational Affiliation

    Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INSULIN
A
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
30Homo sapiensGene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 10 
  • Olderado: 1HIQ Olderado
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORrefinement
X-PLORmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-11-29
    Type: Derived calculations, Other