2R80

Pigeon Hemoglobin (OXY form)

• PDB DOI: https://doi.org/10.2210/pdb2R80/pdb

• Classification: OXYGEN BINDING
• Organism(s): Columba livia
• Mutation(s): No 


• Deposited: 2007-09-10 Released: 2008-09-30 
• Deposition Author(s): Ponnuswamy, M.N., Packianathan, C., Sundaresan, S., Neelagandan, K., Palani, K., Muller, J.J., Heinemann, U.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.44 Å
• R-Value Free: 0.235 
• R-Value Work: 0.197 
• R-Value Observed: 0.199 

Starting Model: experimental

Literature

X-ray crystal structure analysis of Hemolgobin from Pigeon (Columba Livia) at 1.44 angstrom

Ponnuswamy, M.N., Packianathan, C., Sundaresan, S., Neelagandan, K., Palani, K., Muller, J.J., Heinemann, U.

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: 65.27 kDa 
• Atom Count: 5,239 
• 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	A, C	141	Columba livia	Mutation(s): 0
UniProt
Find proteins for P21871 (Columba livia) Explore P21871  Go to UniProtKB:  P21871

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit beta	B, D	146	Columba livia	Mutation(s): 0
UniProt
Find proteins for P11342 (Columba livia) Explore P11342  Go to UniProtKB:  P11342

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
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
OXY	F [auth A], H [auth B], J [auth C], L [auth D]	OXYGEN MOLECULE O2 MYMOFIZGZYHOMD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.44 Å
• R-Value Free: 0.235 
• R-Value Work: 0.197 
• R-Value Observed: 0.199 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 81.086	α = 90
b = 81.543	β = 90
c = 79.214	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
AUTOMAR	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-09-30 
Deposition Author(s): Ponnuswamy, M.N., Packianathan, C., Sundaresan, S., Neelagandan, K., Palani, K., Muller, J.J., Heinemann, U.

Revision History  

• Version 1.0: 2008-09-30
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2019-12-11
  Changes: Derived calculations
• Version 1.3: 2023-10-25
  Changes: Data collection, Database references, Derived calculations, Refinement description