3AQI | pdb_00003aqi

H240A variant of human ferrochelatase

• PDB DOI: https://doi.org/10.2210/pdb3AQI/pdb

• Classification: LYASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2010-11-03 Released: 2012-01-25 
• Deposition Author(s): Lanzilotta, W.N., Medlock, A.E., Dailey, T.A., Dailey, H.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free: 
  0.214 (Depositor), 0.213 (DCC) 
• R-Value Work: 
  0.172 (Depositor), 0.171 (DCC) 
• R-Value Observed: 
  0.174 (Depositor) 

Literature

H240A variant of human ferrochelatase

Lanzilotta, W.N., Medlock, A.E., Dailey, T.A., Dailey, H.A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content 

• Total Structure Weight: 85.03 kDa 
• Atom Count: 6,814 
• Modeled Residue Count: 718 
• Deposited Residue Count: 718 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ferrochelatase	A, B	359	Homo sapiens	Mutation(s): 1  Gene Names: FECH EC: 4.99.1.1 (PDB Primary Data), 4.98.1.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P22830 (Homo sapiens) Explore P22830  Go to UniProtKB:  P22830
PHAROS:  P22830 GTEx:  ENSG00000066926

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CHD	D [auth A], E [auth A], F [auth A], I [auth B], J [auth B], K [auth B]	CHOLIC ACID C24 H40 O5 BHQCQFFYRZLCQQ-OELDTZBJSA-N
FES	C [auth A], H [auth B]	FE2/S2 (INORGANIC) CLUSTER Fe2 S2 NIXDOXVAJZFRNF-UHFFFAOYSA-N
GOL	G [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.70 Å
• R-Value Free:  0.214 (Depositor), 0.213 (DCC) 
• R-Value Work:  0.172 (Depositor), 0.171 (DCC) 
• R-Value Observed: 0.174 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 88.051	α = 90
b = 93.414	β = 90
c = 110.659	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-01-25 
Deposition Author(s): Lanzilotta, W.N., Medlock, A.E., Dailey, T.A., Dailey, H.A.

Revision History  

• Version 1.0: 2012-01-25
  Type: Initial release
  
• Version 1.1: 2024-10-23
  Changes: Data collection, Database references, Derived calculations, Structure summary