1EV6

Structure of the monoclinic form of the M-cresol/insulin R6 hexamer

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

R6 Hexameric Insulin Complexed with m-Cresol or Resorcinol

Smith, G.D., Ciszak, E., Magrum, L.A., Pangborn, W.A., Blessing, R.H.

(2000) Biochem.Biophys.Res.Commun. 56: 1541-1548

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • The structures of three R(6) human insulin hexamers have been determined. Crystals of monoclinic m-cresol-insulin, monoclinic resorcinol-insulin and rhombohedral m-cresol-insulin diffracted to 1. 9, 1.9 and 1.78 A, respectively, and have been refined ...

    The structures of three R(6) human insulin hexamers have been determined. Crystals of monoclinic m-cresol-insulin, monoclinic resorcinol-insulin and rhombohedral m-cresol-insulin diffracted to 1. 9, 1.9 and 1.78 A, respectively, and have been refined to residuals of 0.195, 0.179 and 0.200, respectively. In all three structures, a phenolic derivative is found to occupy the phenolic binding site, where it forms hydrogen bonds to the carbonyl O atom of CysA6 and the N atom of CysA11. Two additional phenolic derivative binding sites were identified within or between hexamers. The structures of all three hexamers are nearly identical, although a large displacement of the N-terminus of one B chain in both monoclinic structures results from coordination to a sodium ion which is located between symmetry-related hexamers. Other minor differences in structure arise from differences in packing in the monoclinic cell compared with the rhombohedral cell. Based upon the differences in conformation of the GluB13 side chains in T(6), T(3)R(f)(3) and R(6) hexamers, the deprotonation of these side chains appears to be associated with the T-->R conformational transition.

    Related Citations: 
    • Phenol Stabilizes more Helix in a New Symmetrical Zinc Insulin Hexamer
      Derewenda, U.,Derewenda, Z.,Dodson, E.J.,Dodson, G.G.,Reynolds, C.D.,Smith, G.D.,Sparks, C.,Swenson, D.
      (1989) Nature 338: 594
    • Structure of a Rhombohedral R6 Insulin/Phenol Complex
      Smith, G.D.,Dodson, G.G.
      (1992) Proteins 14: 401

    Organizational Affiliation: 

    Hauptman-Woodward Medical Research Institute, 73 High Street, Buffalo, NY 14203, USA. smith@hwi.buffalo.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
INSULIN
A, C, E, G, I, K
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, D, F, H, J, L
30Homo sapiensGene Names: INS
Find proteins for P01308 (Homo sapiens)
Go to Gene View: INS
Go to UniProtKB:  P01308
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CRS
Query on CRS
Download SDF File 
Download CCD File 
A, C, E, G, I, K
M-CRESOL
C7 H8 O
RLSSMJSEOOYNOY-UHFFFAOYSA-N
 Ligand Interaction
ZN
Query on ZN
Download SDF File 
Download CCD File 
B, D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
NA
Query on NA
Download SDF File 
Download CCD File 
C
SODIUM ION
Na
FKNQFGJONOIPTF-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: 1.9 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.195 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 61.247α = 90.00
b = 61.739β = 111.32
c = 47.467γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-12-04
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance