1BZR

ATOMIC RESOLUTION CRYSTAL STRUCTURE ANALYSIS OF NATIVE DEOXY AND CO MYOGLOBIN FROM SPERM WHALE AT ROOM TEMPERATURE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.15 Å
  • R-Value Observed: 0.124 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A steric mechanism for inhibition of CO binding to heme proteins.

Kachalova, G.S.Popov, A.N.Bartunik, H.D.

(1999) Science 284: 473-476

  • DOI: 10.1126/science.284.5413.473
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The crystal structures of myoglobin in the deoxy- and carbon monoxide-ligated states at a resolution of 1.15 angstroms show that carbon monoxide binding at ambient temperatures requires concerted motions of the heme, the iron, and helices E and F for ...

    The crystal structures of myoglobin in the deoxy- and carbon monoxide-ligated states at a resolution of 1.15 angstroms show that carbon monoxide binding at ambient temperatures requires concerted motions of the heme, the iron, and helices E and F for relief of steric inhibition. These steps constitute the main mechanism by which heme proteins lower the affinity of the heme group for the toxic ligand carbon monoxide.


    Organizational Affiliation

    Max-Planck-Arbeitsgruppen für Strukturelle Molekularbiologie, Arbeitsgruppe Proteindynamik, Notkestrabetae 85, 22603 Hamburg, Germany.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (MYOGLOBIN)
A
153Physeter catodonMutation(s): 0 
Gene Names: MB
Find proteins for P02185 (Physeter macrocephalus)
Go to UniProtKB:  P02185
Protein Feature View
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
SO4
Query on SO4

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

Download CCD File 
A
CARBON MONOXIDE
C O
UGFAIRIUMAVXCW-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.15 Å
  • R-Value Observed: 0.124 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.91α = 90
b = 31.04β = 105.53
c = 64.73γ = 90
Software Package:
Software NamePurpose
SHELXLrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-05-10
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Advisory, Refinement description