1QSH

MAGNESIUM(II)-AND ZINC(II)-PROTOPORPHYRIN IX'S STABILIZE THE LOWEST OXYGEN AFFINITY STATE OF HUMAN HEMOGLOBIN EVEN MORE STRONGLY THAN DEOXYHEME

Structural Biology Knowledgebase: 1QSH SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Observed: 0.175

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 1QSH

Classification: OXYGEN STORAGE / TRANSPORT

Total Structure Weight: 64484.61

Macromolecule Entities
Molecule Chains Length Organism Details
PROTEIN (HEMOGLOBIN ALPHA CHAIN) A, C 141 Homo sapiens Gene Name(s): HBA1 Gene View HBA2 Gene View
PROTEIN (HEMOGLOBIN BETA CHAIN) B, D 146 Homo sapiens Gene Name(s): HBB Gene View

Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
HEM
Query on HEM

A, C PROTOPORPHYRIN IX CONTAINING FE
HEME (Synonym)
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
HEG
Query on HEG

B, D PROTOPORPHYRIN IX CONTAINING MG
C34 H32 Mg N4 O4
WRTULUUAJAPTAR-INNBLLPHDA
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7 Å
  • R-Value Observed: 0.175
  • Space Group: P 1 21 1

Unit Cell:

Length (Å) Angle (°)
a = 63.15 α = 90.00
b = 83.59 β = 99.34
c = 53.80 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1999-06-22
  • Released Date: 1999-07-02
  • Deposition author(s): Miyazaki, G., Morimoto, H., Yun, K.-M., Park, S.-Y., Nakagawa, A., Minagawa, H., Shibayama, N.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4