2ZFB

Crystal structure of parrot hemoglobin (Psittacula krameri) at pH 7.5

• PDB DOI: https://doi.org/10.2210/pdb2ZFB/pdb

• Classification: METAL BINDING PROTEIN
• Organism(s): Psittacula krameri
• Mutation(s): No 


• Deposited: 2007-12-28 Released: 2008-02-26 
• Deposition Author(s): Jaimohan, S.M., Naresh, M.D., Mandal, A.B.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.274 
• R-Value Work: 0.190 
• R-Value Observed: 0.198 

Literature

Crystal structure of parrot hemoglobin (Psittacula krameri) at pH 7.5

Jaimohan, S.M., Naresh, M.D.

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: 32.59 kDa 
• Atom Count: 2,314 
• Modelled Residue Count: 287 
• Deposited Residue Count: 287 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha	A	141	Psittacula krameri	Mutation(s): 0
UniProt
Find proteins for P19831 (Psittacula krameri) Explore P19831  Go to UniProtKB:  P19831

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit beta	B	146	Psittacula krameri	Mutation(s): 0
UniProt
Find proteins for P21668 (Psittacula krameri) Explore P21668  Go to UniProtKB:  P21668

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	C [auth A], D [auth B]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.274 
• R-Value Work: 0.190 
• R-Value Observed: 0.198 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 110.676	α = 90
b = 64.268	β = 109.35
c = 56.396	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MAR345	data collection
AUTOMAR	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-02-26 
Deposition Author(s): Jaimohan, S.M., Naresh, M.D., Mandal, A.B.

Revision History  

• Version 1.0: 2008-02-26
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-10-11
  Changes: Refinement description
• Version 1.3: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description