1FCS

CRYSTAL STRUCTURE OF A DISTAL SITE DOUBLE MUTANT OF SPERM WHALE MYOGLOBIN AT 1.6 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Observed: 0.197 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structure of a distal site double mutant of sperm whale myoglobin at 1.6 A resolution.

Rizzi, M.Bolognesi, M.Coda, A.Cutruzzola, F.Allocatelli, C.T.Brancaccio, A.Brunori, M.

(1993) FEBS Lett 320: 13-16

  • DOI: https://doi.org/10.1016/0014-5793(93)81647-i
  • Primary Citation of Related Structures:  
    1FCS

  • PubMed Abstract: 

    The three-dimensional structure of sperm whale myoglobin His64(E7)-->Val,Thr67(E10)-->Arg double mutant has been studied by X-ray crystallography at 1.6 A resolution, and refined to a crystallographic R-factor of 0.197. The Arg67(E10) side chain is extended in the direction of the ligand binding site, and its NH1 atom is at a distance of 3.11 A from the NH1 atom of Arg45(CD3), which is also pointing towards the distal site. Both are kept in this position by hydrogen bonding and electrostatic interactions with a solvent sulfate ion, located amongst the two, on the protein surface. No liganded water molecule is present at the sixth coordination position of the Fe(III) heme.


  • Organizational Affiliation

    Dipartimento di Genetica e Microbiologia, Università di Pavia, Italy.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
MYOGLOBIN154Physeter catodonMutation(s): 0 
Gene Names: SYNTHETIC GENE
UniProt
Find proteins for P02185 (Physeter macrocephalus)
Explore P02185 
Go to UniProtKB:  P02185
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02185
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Observed: 0.197 
  • Space Group: P 6
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.3α = 90
b = 91.3β = 90
c = 45.86γ = 120
Software Package:
Software NamePurpose
TNTrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1993-10-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2024-02-07
    Changes: Data collection, Database references, Derived calculations, Other