3OVU

Crystal Structure of Human Alpha-Haemoglobin Complexed with AHSP and the First NEAT Domain of IsdH from Staphylococcus aureus

• PDB DOI: https://doi.org/10.2210/pdb3OVU/pdb

• Classification: OXYGEN TRANSPORT/PROTEIN BINDING
• Organism(s): Homo sapiens, Staphylococcus aureus subsp. aureus MSSA476
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2010-09-17 Released: 2011-09-21 
• Deposition Author(s): Jacques, D.A., Krishna Kumar, K., Caradoc-Davies, T.T., Langley, D.B., Mackay, J.P., Guss, J.M., Gell, D.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.83 Å
• R-Value Free: 0.280 
• R-Value Work: 0.252 
• R-Value Observed: 0.253 

Literature

A new haem pocket structure in alpha-haemoglobin

Krishna Kumar, K., Jacques, D.A., Caradoc-Davies, T.T., Spirig, T., Langley, D.B., Mackay, J.P., Guss, J.M., Clubb, R.T., Gell, D.A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 46.39 kDa 
• Atom Count: 2,961 
• Modelled Residue Count: 371 
• Deposited Residue Count: 406 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-hemoglobin-stabilizing protein	A	101	Homo sapiens	Mutation(s): 0  Gene Names: AHSP
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NZD4 (Homo sapiens) Explore Q9NZD4  Go to UniProtKB:  Q9NZD4
PHAROS:  Q9NZD4 GTEx:  ENSG00000169877

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Iron-regulated surface determinant protein H	B	164	Staphylococcus aureus subsp. aureus MSSA476	Mutation(s): 0  Gene Names: SAS1657
UniProt
Find proteins for Q6G8J7 (Staphylococcus aureus (strain MSSA476)) Explore Q6G8J7  Go to UniProtKB:  Q6G8J7

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha	C	141	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P69905 (Homo sapiens) Explore P69905  Go to UniProtKB:  P69905
PHAROS:  P69905 GTEx:  ENSG00000188536 ENSG00000206172

Small Molecules

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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.83 Å
• R-Value Free: 0.280 
• R-Value Work: 0.252 
• R-Value Observed: 0.253 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.638	α = 90
b = 71.659	β = 90
c = 82.058	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-09-21 
Deposition Author(s): Jacques, D.A., Krishna Kumar, K., Caradoc-Davies, T.T., Langley, D.B., Mackay, J.P., Guss, J.M., Gell, D.A.

Revision History  

• Version 1.0: 2011-09-21
  Type: Initial release
  
• Version 1.1: 2024-03-20
  Changes: Data collection, Database references, Derived calculations