2QMB

Structure determination of haemoglobin from Turkey(meleagris gallopavo) at 2.8 Angstrom resolution

• PDB DOI: https://doi.org/10.2210/pdb2QMB/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Meleagris gallopavo
• Mutation(s): No 


• Deposited: 2007-07-15 Released: 2008-07-22 
• Deposition Author(s): Packianathan, C., Sundaresan, S., Ponnuswamy, M.N.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 0.284 
• R-Value Work: 0.172 
• R-Value Observed: 0.180 

Literature

X-ray crystal structure analysis of hemoglobin from turkey(meleagris gallopavo) at 2.80 Angstrom resolution

Packianathan, C., Sundaresan, S., Ponnuswamy, M.N.

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: 66.19 kDa 
• Atom Count: 4,657 
• Modelled Residue Count: 574 
• Deposited Residue Count: 576 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha-A	A, C	142	Meleagris gallopavo	Mutation(s): 0
UniProt
Find proteins for P81023 (Meleagris gallopavo) Explore P81023  Go to UniProtKB:  P81023

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin beta chain	B, D	146	Meleagris gallopavo	Mutation(s): 0
UniProt
Find proteins for G1U9Q8 (Meleagris gallopavo) Explore G1U9Q8  Go to UniProtKB:  G1U9Q8

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: 2.80 Å
• R-Value Free: 0.284 
• R-Value Work: 0.172 
• R-Value Observed: 0.180 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66	α = 90
b = 79.795	β = 90
c = 103.92	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
AUTOMAR	data reduction
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-07-22 
Deposition Author(s): Packianathan, C., Sundaresan, S., Ponnuswamy, M.N.

Revision History  

• Version 1.0: 2008-07-22
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2015-10-14
  Changes: Structure summary
• Version 1.3: 2024-03-13
  Changes: Data collection, Database references, Derived calculations