3RGK

Crystal Structure of Human Myoglobin Mutant K45R

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.176 

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This is version 1.1 of the entry. See complete history. 


Literature

X-ray crystal structure of a recombinant human myoglobin mutant at 2.8 A resolution

Hubbard, S.R., Lambright, S.G., Boxer, S.G., Hendrickson, W.A.

(1990) J Mol Biol 20: 215-218

  • DOI: 10.1016/S0022-2836(05)80181-0
  • Primary Citation of Related Structures:  
    3RGK

  • PubMed Abstract: 

    • We have grown crystals in trigonal space group P3(2)21 of a mutant human myoglobin, aquomet form, in which lysine at position 45 has been replaced by arginine and cysteine at position 110 has been replaced by alanine. Suitable crystals of native reco ...

    We have grown crystals in trigonal space group P3(2)21 of a mutant human myoglobin, aquomet form, in which lysine at position 45 has been replaced by arginine and cysteine at position 110 has been replaced by alanine. Suitable crystals of native recombinant human myoglobin have not been obtained. We have used the molecular replacement method to determine the X-ray crystal structure of the mutant at 2.8 A resolution. At the present stage of refinement, the crystallographic R-value for the model, with tightly restrained stereochemistry, is 0.158 for 5.0 to 2.8 A data. As expected, the overall structure is quite similar to the sperm whale myoglobin structure. Arginine 45 adopts a well-ordered conformation similar to that found in aquomet sperm whale myoglobin.

    Organizational Affiliation: 

    Howard Hughes Medical Institute, Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY 10032.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MyoglobinA153Homo sapiensMutation(s): 2 
Gene Names: MB
Find proteins for P02144 (Homo sapiens)
Explore P02144 
Go to UniProtKB:  P02144
NIH Common Fund Data Resources
PHAROS  P02144
GTEx  ENSG00000198125
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM
Download Ideal Coordinates CCD File 
A
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L		 Ligand Interaction
SO4
Query on SO4
Download Ideal Coordinates CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.175 
  • R-Value Observed: 0.176 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.2α = 90
b = 86.2β = 90
c = 35.66γ = 120
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

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Entry History 

Deposition Data

  • Deposited Date: 2011-04-08 
  • Released Date: 2011-04-27 
    • Deposition Author(s): Hubbard, S.R.
  • This entry supersedes: 2MM1

Revision History 

  • Version 1.0: 2011-04-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance