Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 66401.55 
• Atom Count: 4599 
• Residue Count: 576 
• Unique protein chains: 2

3WTG

Crystal structure of Emu (dromaius novaehollandiae) hemoglobin at 2.3 angstrom resolution

• DOI: 10.2210/pdb3WTG/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Dromaius novaehollandiae


• Deposited: 2014-04-11 Released: 2014-07-02 
• Deposition Author(s): Abubakkar, M.M., Maheshwaran, V., Ponnuswamy, M.N., Saraboji, K.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.257 
• R-Value Work: 0.192 

Literature

Purification and preliminary structural studies of hemoglobin from high oxygen affinity species Emu (Dromaius novaehollandiae) at neutral pH

Abubakkar, M.M., Saraboji, K., Ponnuswamy, M.N.

To be published.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Hemoglobin subunit alpha-A	A, C	142	Dromaius novaehollandiae	Mutation(s): 0  Gene Names: HBAA
Find proteins for C6L8R0 (Dromaius novaehollandiae) Go to UniProtKB:  C6L8R0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Hemoglobin	B, D	146	Dromaius novaehollandiae	Mutation(s): 0
Find proteins for A0A075B5G0 (Dromaius novaehollandiae) Go to UniProtKB:  A0A075B5G0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
OXY	A, B, C, D	OXYGEN MOLECULE O2 MYMOFIZGZYHOMD-UHFFFAOYSA-N
HEM	A, B, C, D	PROTOPORPHYRIN IX CONTAINING FE HEME C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.257 
• R-Value Work: 0.192 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 66.271	α = 90.00
b = 80.010	β = 90.00
c = 103.559	γ = 90.00

Software Package:

Software Name	Purpose
MAR345dtb	data collection
REFMAC	refinement
PHASER	phasing
AUTOMAR	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-04-11 
• Released Date: 2014-07-02 
• Deposition Author(s): Abubakkar, M.M., Maheshwaran, V., Ponnuswamy, M.N., Saraboji, K.

Revision History 

• Version 1.0: 2014-07-02
  Type: Initial release