1YMC

THREE-DIMENSIONAL STRUCTURE OF CYANOMET-SULFMYOGLOBIN C


Experimental Data Snapshot

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

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Three-dimensional structure of cyanomet-sulfmyoglobin C.

Evans, S.V.Sishta, B.P.Mauk, A.G.Brayer, G.D.

(1994) Proc.Natl.Acad.Sci.USA 91: 4723-4726


  • PubMed Abstract: 
  • The atomic structure of horse heart cyanomet-sulfmyoglobin C has been established by x-ray crystallographic techniques to a resolution of 2.0 A with an R value of 0.129. The protoheme IX prosthetic group of this thermodynamically stable sulfmyoglobin ...

    The atomic structure of horse heart cyanomet-sulfmyoglobin C has been established by x-ray crystallographic techniques to a resolution of 2.0 A with an R value of 0.129. The protoheme IX prosthetic group of this thermodynamically stable sulfmyoglobin derivative has been converted to a chlorin in which the pyrrole ring bearing the 4-vinyl group is saturated and possesses an exocyclic thiolene ring. This study provides the three-dimensional structure of a protein with an iron-chlorin prosthetic group. The overall conformation of the surrounding polypeptide chain of the modified protein is very similar to that of the native protein. However, the addition of the sulfur atom has caused a distortion of the prosthetic group from that in the native protein to result in the repositioning of the side chains of some residues in the heme pocket.


    Related Citations: 
    • Horse Heart Metmyoglobin: A 2.8-Angstroms Resolution Three-Dimensional Structure Determination
      Evans, S.V.,Brayer, G.D.
      (1988) J.Biol.Chem. 263: 4263
    • High-Resolution Study of the Three-Dimensional Structure of Horse Heart Metmyoglobin
      Evans, S.V.,Brayer, G.D.
      (1990) J.Mol.Biol. 213: 885
    • Crystallization and Preliminary Diffraction Data for Horse Heart Metmyoglobin
      Sherwood, C.,Mauk, A.G.,Brayer, G.D.
      (1987) J.Mol.Biol. 193: 227


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CYANOMET-SULFMYOGLOBIN
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
CYN
Query on CYN

Download SDF File 
Download CCD File 
A
CYANIDE ION
C N
XFXPMWWXUTWYJX-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

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

Download SDF File 
Download CCD File 
A
SULFUR SUBSTITUTED PROTOPORPHYRIN IX
C34 H32 Fe N4 O4 S
XAZJCRKXDLHNIU-GLZGJVGADZ
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 64.500α = 90.00
b = 28.910β = 107.00
c = 35.660γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement

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