1LRM

Crystal structure of binary complex of the catalytic domain of human phenylalanine hydroxylase with dihydrobiopterin (BH2)

• PDB DOI: https://doi.org/10.2210/pdb1LRM/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2002-05-15 Released: 2002-06-12 
• Deposition Author(s): Andersen, O.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.235 (Depositor), 0.230 (DCC) 
• R-Value Work: 
  0.211 (Depositor), 0.200 (DCC) 

Starting Model: experimental

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 37.9 kDa 
• Atom Count: 2,729 
• Modelled Residue Count: 307 
• Deposited Residue Count: 325 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phenylalanine-4-hydroxylase	A	325	Homo sapiens	Mutation(s): 0  Gene Names: PAH EC: 1.14.16.1
UniProt & NIH Common Fund Data Resources
Find proteins for P00439 (Homo sapiens) Explore P00439  Go to UniProtKB:  P00439
PHAROS:  P00439 GTEx:  ENSG00000171759

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HBI	C [auth A]	7,8-DIHYDROBIOPTERIN C9 H13 N5 O3 FEMXZDUTFRTWPE-DZSWIPIPSA-N
FE	B [auth A]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.235 (Depositor), 0.230 (DCC) 
• R-Value Work:  0.211 (Depositor), 0.200 (DCC) 

Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.588	α = 90
b = 108.117	β = 90
c = 124.168	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALA	data scaling
CNS	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2002-06-12 
Deposition Author(s): Andersen, O.A.

Revision History  

• Version 1.0: 2002-06-12
  Type: Initial release
  
• Version 1.1: 2007-10-16
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-14
  Changes: Data collection, Database references, Derived calculations, Refinement description