1QSI: MAGNESIUM(II)-AND ZINC(II)-PROTOPORPHYRIN IX'S STABILIZE THE LOWEST OXYGEN AFFINITY STATE OF HUMAN HEMOGLOBIN EVEN MORE STRONGLY THAN DEOXYHEME

PDB ID: 1QSIDownload
MMDB ID: 10625
PDB Deposition Date: 1999/6/22
Updated in MMDB: 2012/11
Experimental Method:
x-ray diffraction
Resolution: 1.7  Å
Source Organism:
Similar Structures:
Biological Unit for 1QSI: tetrameric; determined by author and by software (PISA)
Molecular Components in 1QSI
Label Count Molecule
Proteins (4 molecules)
2
Protein (Hemoglobin Alpha Chain)
(Gene symbol: HBA1)
Molecule annotation
2
Protein (Hemoglobin Beta Chain)
(Gene symbol: HBB)
Molecule annotation
Chemicals and Non-standard biopolymers (6 molecules)
1
2
PROTOPORPHYRIN IX CONTAINING FEPROTOPORPHYRIN IX CONTAINING FE
2
2
CARBON MONOXIDECARBON MONOXIDE
3
2
PROTOPORPHYRIN IX CONTAINING MGPROTOPORPHYRIN IX CONTAINING MG
* Click molecule labels to explore molecular sequence information.
Citing MMDB
Madej T, Lanczycki CJ, Zhang D, Thiessen PA, Geer RC, Marchler-Bauer A, Bryant SH. " MMDB and VAST+: tracking structural similarities between macromolecular complexes. Nucleic Acids Res. 2014 Jan; 42(Database issue):D297-303