Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Dihedral - D2  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: homology

Macromolecule Content

• Total Structure Weight: 66026.74 
• Atom Count: 4664 
• Residue Count: 584 
• Unique protein chains: 1

6FQF

THE X-RAY STRUCTURE OF FERRIC-BETA4 HUMAN HEMOGLOBIN

• DOI: 10.2210/pdb6FQF/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli K-12


• Deposited: 2018-02-14 Released: 2018-06-13 
• Deposition Author(s): Mazzarella, L., Merlino, A., Balasco, N., Balsamo, A., Vergara, A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.1 Å
• R-Value Free: 0.265 
• R-Value Work: 0.204 

Literature

Crystal structure of the ferric homotetrameric beta4human hemoglobin.

Mazzarella, L., Merlino, A., Balasco, N., Balsamo, A., Vergara, A.

(2018) Biophys. Chem. 240: 9-14

• PubMed: 29857171 

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Hemoglobin subunit beta	A, B, C, D	146	Homo sapiens	Mutation(s): 0  Gene Names: HBB
Find proteins for P68871 (Homo sapiens) Go to Gene View: HBB Go to UniProtKB:  P68871

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
HEM	A, B, C, D	PROTOPORPHYRIN IX CONTAINING FE HEME C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.1 Å
• R-Value Free: 0.265 
• R-Value Work: 0.204 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 52.700	α = 90.00
b = 82.100	β = 91.30
c = 62.500	γ = 90.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
REFMAC	refinement
AMoRE	phasing
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2018-02-14 
• Released Date: 2018-06-13 
• Deposition Author(s): Mazzarella, L., Merlino, A., Balasco, N., Balsamo, A., Vergara, A.

Revision History 

• Version 1.0: 2018-06-13
  Type: Initial release