1PAH

HUMAN PHENYLALANINE HYDROXYLASE DIMER, RESIDUES 117-424

• PDB DOI: https://doi.org/10.2210/pdb1PAH/pdb

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


• Deposited: 1997-10-25 Released: 1999-01-13 
• Deposition Author(s): Stevens, R.C., Erlandsen, H.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.218 
• R-Value Work: 0.176 
• R-Value Observed: 0.176 

Starting Model: experimental

Literature

Crystal structure of the catalytic domain of human phenylalanine hydroxylase reveals the structural basis for phenylketonuria.

Erlandsen, H., Fusetti, F., Martinez, A., Hough, E., Flatmark, T., Stevens, R.C.

(1997) Nat Struct Biol 4: 995-1000

• PubMed: 9406548 
• DOI: https://doi.org/10.1038/nsb1297-995
• Primary Citation of Related Structures:  
  1PAH


• PubMed Abstract: 
  

  The 2.0 A crystal structure of the catalytic domain of human phenylalanine hydroxylase reveals a fold similar to that of tyrosine hydroxylase. It provides the first structural view of where mutations occur and a rationale to explain molecular mechanisms of the enzymatic phenotypes in the autosomal recessive disorder phenylketoneuria.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 35.76 kDa 
• Atom Count: 2,584 
• Modelled Residue Count: 308 
• Deposited Residue Count: 308 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PHENYLALANINE HYDROXYLASE	A	308	Homo sapiens	Mutation(s): 0  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 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FE	B [auth A]	FE (III) ION Fe VTLYFUHAOXGGBS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.218 
• R-Value Work: 0.176 
• R-Value Observed: 0.176 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.6	α = 90
b = 108.4	β = 90
c = 125.7	γ = 90

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-01-13 
Deposition Author(s): Stevens, R.C., Erlandsen, H.

Revision History  

• Version 1.0: 1999-01-13
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-09
  Changes: Database references, Derived calculations, Other, Refinement description
• Version 1.4: 2024-05-22
  Changes: Data collection