9RXG | pdb_00009rxg

Work experience structure of Bovine Hemoglobin, collected at room temperature.

• PDB DOI: https://doi.org/10.2210/pdb9RXG/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Bos taurus
• Mutation(s): No 


• Deposited: 2025-07-11 Released: 2025-08-27 
• Deposition Author(s): Sandy, J., Balagan, P., Inyang, M., Kibelkyte, I.
• Funding Organization(s): Diamond Light Source

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.62 Å
• R-Value Free: 
  0.233 (Depositor), 0.233 (DCC) 
• R-Value Work: 
  0.190 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.194 (Depositor) 

Starting Model: experimental

Literature

Work experience structure of Bovine Hemoglobin, collected at room temperature.

Sandy, J., Balagan, P., Inyang, M., Kibelkyte, I.

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.

Macromolecule Content 

• Total Structure Weight: 64.26 kDa 
• Atom Count: 4,511 
• Modeled Residue Count: 565 
• Deposited Residue Count: 570 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha	A, C	140	Bos taurus	Mutation(s): 0
UniProt
Find proteins for P01966 (Bos taurus) Explore P01966  Go to UniProtKB:  P01966

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit beta	B, D	145	Bos taurus	Mutation(s): 0  EC: 1.10.2.2
UniProt
Find proteins for P02070 (Bos taurus) Explore P02070  Go to UniProtKB:  P02070

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM (Subject of Investigation/LOI)	E [auth A], F [auth B], G [auth C], H [auth D]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.62 Å
• R-Value Free:  0.233 (Depositor), 0.233 (DCC) 
• R-Value Work:  0.190 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.194 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.774	α = 90
b = 79.118	β = 90
c = 109.856	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
DIALS	data reduction
DIALS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-08-27 
Deposition Author(s): Sandy, J., Balagan, P., Inyang, M., Kibelkyte, I.

---

Funding Organization	Location	Grant Number
Diamond Light Source	United Kingdom	--

Revision History  

• Version 1.0: 2025-08-27
  Type: Initial release