3VAU

Myoglobin nitrite structure: nitriheme modified


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.173 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Unveiling the three-dimensional structure of the green pigment of nitrite-cured meat

Yi, J.Richter-Addo, G.B.

(2012) Chem.Commun.(Camb.) 48: 4172-4174

  • DOI: 10.1039/c2cc31065a

  • PubMed Abstract: 
  • The 1.70 Å-resolution X-ray crystal structure of the green pigment occasionally present in nitrite-cured meat reveals a regiospecific nitration of the heme at the 2-vinyl position; the regiospecificity is favored on steric grounds, and results in mov ...

    The 1.70 Å-resolution X-ray crystal structure of the green pigment occasionally present in nitrite-cured meat reveals a regiospecific nitration of the heme at the 2-vinyl position; the regiospecificity is favored on steric grounds, and results in movement of the 2-nitrovinyl moiety into the plane of the 24-atom heme macrocycle.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, USA. yijun@ou.edu




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Myoglobin
A
153Equus caballusMutation(s): 0 
Gene Names: MB
Find proteins for P68082 (Equus caballus)
Go to Gene View: MB
Go to UniProtKB:  P68082
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
NTE
Query on NTE

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Download CCD File 
A
[3,3'-{7-ethenyl-3,8,13,17-tetramethyl-12-[(E)-2-nitroethenyl]porphyrin-2,18-diyl-kappa~4~N~21~,N~22~,N~23~,N~24~}dipropanoato(2-)]iron
Nitriheme
C34 H31 Fe N5 O6
MBEUICWDKPMPCN-RXJYIKGQSA-L
 Ligand Interaction
NO2
Query on NO2

Download SDF File 
Download CCD File 
A
NITRITE ION
N O2
IOVCWXUNBOPUCH-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.173 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 35.140α = 90.00
b = 28.423β = 105.50
c = 62.867γ = 90.00
Software Package:
Software NamePurpose
d*TREKdata scaling
CrystalCleardata collection
REFMACrefinement
PHASERphasing
d*TREKdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-04-11
    Type: Initial release