7UF7

Crystal structure of liganded Hb with the 5-HMF analog, MMA503

• PDB DOI: https://doi.org/10.2210/pdb7UF7/pdb

• Classification: OXYGEN TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2022-03-22 Released: 2022-03-30 
• Deposition Author(s): Donkor, A.K., Musayev, F.N., Safo, M.K.
• Funding Organization(s): National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI), National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development (NIH/NICHD)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.223 
• R-Value Work: 0.157 
• R-Value Observed: 0.161 

Starting Model: experimental

Literature

Improving the antisickling activity of furaldehyde

El-Araby, M.E., Omar, A.M., Ghatge, M.S., Musayev, F.N., Donkor, A.K., Paredes, S.D., Abdulmalik, O., Safo, M.K.

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)

Biological Assembly Evidence: native gel electrophoresis

Macromolecule Content

• Total Structure Weight: 65.48 kDa 
• Atom Count: 5,370 
• Modelled Residue Count: 574 
• Deposited Residue Count: 578 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit alpha	A, C	142	Homo sapiens	Mutation(s): 0  Gene Names: HBA1, HBA2
UniProt & NIH Common Fund Data Resources
Find proteins for P69905 (Homo sapiens) Explore P69905  Go to UniProtKB:  P69905
PHAROS:  P69905 GTEx:  ENSG00000188536 ENSG00000206172

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hemoglobin subunit beta	B, D	147	Homo sapiens	Mutation(s): 0  Gene Names: HBB
UniProt & NIH Common Fund Data Resources
Find proteins for P68871 (Homo sapiens) Explore P68871  Go to UniProtKB:  P68871
PHAROS:  P68871 GTEx:  ENSG00000244734

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM (Subject of Investigation/LOI)	E [auth A], H [auth B], J [auth C], M [auth D]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
N2Q (Subject of Investigation/LOI)	G [auth A], L [auth C]	(5P)-5-(5-methylfuran-2-yl)-1H-pyrazole C8 H8 N2 O ZIJASYNQNLPMPY-UHFFFAOYSA-N
CMO (Subject of Investigation/LOI)	F [auth A], I [auth B], K [auth C], N [auth D]	CARBON MONOXIDE C O UGFAIRIUMAVXCW-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.223 
• R-Value Work: 0.157 
• R-Value Observed: 0.161 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 62.614	α = 90
b = 83.12	β = 90
c = 105.122	γ = 90

Software Package:

Software Name	Purpose
Aimless	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
CrysalisPro	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-03-30 
Deposition Author(s): Donkor, A.K., Musayev, F.N., Safo, M.K.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)	United States	R61HL156158
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development (NIH/NICHD)	United States	S10OD021756

Revision History  

• Version 1.0: 2022-03-30
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Refinement description
• Version 1.2: 2024-10-30
  Changes: Structure summary