Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18190.85 
• Atom Count: 1279 
• Residue Count: 154 
• Unique protein chains: 1

1FCS

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

• DOI: 10.2210/pdb1FCS/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Physeter catodon


• Deposited: 1993-04-20 Released: 1993-10-31 
• Deposition Author(s): Rizzi, M., Bolognesi, M., Coda, A., Cutruzzola, F., Travaglini Allocatelli, C., Brancaccio, A., Brunori, M.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.6 Å

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

• PubMed: 8462669 


• 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.

---

Related Citations: 

• Binding Mode of Azide to Ferric Aplysia Limacina Myoglobin. Crystallographic Analysis at 1.9 Angstroms Resolution
  Mattevi, A.,Gatti, G.,Coda, A.,Rizzi, M.,Ascenzi, P.,Brunori, M.,Bolognesi, M.
  (1991) J.Mol.Recog. 4: 1
• Control and Recognition of Anionic Ligands in Myoglobin
  Cutruzzola, F.,Allocatelli, C.T.,Ascenzi, P.,Bolognesi, M.,Sligar, S.G.,Brunori, M.
  (1991) FEBS Lett. 282: 281




---

Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
MYOGLOBIN	A	154	Physeter catodon	Mutation(s): 0  Gene Names: MB
Find proteins for P02185 (Physeter catodon) Go to Gene View: MB Go to UniProtKB:  P02185

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
HEM	A	PROTOPORPHYRIN IX CONTAINING FE HEME C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.6 Å
• Space Group: P 6

Unit Cell:

Length (Å)	Angle (°)
a = 91.300	α = 90.00
b = 91.300	β = 90.00
c = 45.860	γ = 120.00

Software Package:

Software Name	Purpose
TNT	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1993-04-20 
• Released Date: 1993-10-31 
• Deposition Author(s): Rizzi, M., Bolognesi, M., Coda, A., Cutruzzola, F., Travaglini Allocatelli, C., Brancaccio, A., Brunori, M.

Revision History 

• Version 1.0: 1993-10-31
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance