3HXN

The structure of human carbonmonoxyhemoglobin complex to IHP at 2.0 angstrons resolution.

• PDB DOI: https://doi.org/10.2210/pdb3HXN/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2009-06-21 Released: 2010-06-30 
• Deposition Author(s): Colombo, M.F., Seixas, F.A.V.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.283 
• R-Value Work: 0.225 

Literature

The structure of human carbonmonoxyhemoglobin complex to IHP at 2.0 Angstrons resolution

Seixas, F.A.V., Colombo, M.F.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 Pseudo Symmetry: Dihedral - D2  (Explore in 3D)
Pseudo Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content

• Total Structure Weight: 65.32 kDa 
• Atom Count: 4,820 
• Modelled Residue Count: 574 
• Deposited Residue Count: 574 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha	A, C	141	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P69905 (Homo sapiens) Explore P69905  Go to UniProtKB:  P69905
PHAROS:  P69905 GTEx:  ENSG00000188536 ENSG00000206172

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit beta	B, D	146	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P68871 (Homo sapiens) Explore P68871  Go to UniProtKB:  P68871
PHAROS:  P68871 GTEx:  ENSG00000244734

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
IHP	M [auth D]	INOSITOL HEXAKISPHOSPHATE C6 H18 O24 P6 IMQLKJBTEOYOSI-GPIVLXJGSA-N
HEM	E [auth A], G [auth B], I [auth C], K [auth D]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
CMO	F [auth A], H [auth B], J [auth C], L [auth D]	CARBON MONOXIDE C O UGFAIRIUMAVXCW-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.283 
• R-Value Work: 0.225 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 54.524	α = 90
b = 79.959	β = 98.06
c = 62.241	γ = 90

Software Package:

Software Name	Purpose
MAR345dtb	data collection
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-06-30 
Deposition Author(s): Colombo, M.F., Seixas, F.A.V.

Revision History  

• Version 1.0: 2010-06-30
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2020-10-14
  Changes: Derived calculations, Structure summary
• Version 1.3: 2023-09-06
  Changes: Data collection, Database references, Refinement description