1J8U

Catalytic Domain of Human Phenylalanine Hydroxylase Fe(II) in Complex with Tetrahydrobiopterin

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1PAH	PDB entry 1PAH

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	Vapor diffusion, hanging drop, anaerobically	6.8	277	PEG2000, Na-hepes, ethylene glycol, pH 6.8, Vapor diffusion, hanging drop, anaerobically, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.98	57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 66.441	α = 90
b = 108.676	β = 90
c = 124.418	γ = 90

Symmetry
Space Group	C 2 2 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	IMAGE PLATE	MARRESEARCH		2000-09-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM1A	0.873	ESRF	BM1A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	Net I Over Average Sigma (I)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	1.5	20	99.9	0.051	0.051	8.7	6.9	71940	71940			18.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.5	1.58	100		0.37	0.37	2	5.9	10450

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	PDB entry 1PAH	1.5	10	71887	71887	7274	100	0.157	0.157	0.155	0.203	Random	19.5

Temperature Factor Modeling
Anisotropic B[1][1]	Anisotropic B[1][2]	Anisotropic B[1][3]	Anisotropic B[2][2]	Anisotropic B[2][3]	Anisotropic B[3][3]

RMS Deviations
Key	Refinement Restraint Deviation
s_dihedral_angle_d	23.8
s_angle_d	2.03
s_improper_angle_d	1.26
s_bond_d	0.012

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2532
Nucleic Acid Atoms
Solvent Atoms	393
Heterogen Atoms	18

Software

Software
Software Name	Purpose
SHELXL-97	refinement
DENZO	data reduction
CCP4	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.