1AY4

AROMATIC AMINO ACID AMINOTRANSFERASE WITHOUT SUBSTRATE

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.7		PROTEIN WAS CRYSTALLIZED FROM 16.5% PEG 4000, 0.4 M SODIUM ACETATE, PH 5.7

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 123.72	α = 90
b = 123.06	β = 90
c = 55.16	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	RIGAKU	MIRRORS	1996-03-07	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.33	123	97.4	0.0752	11.5	3.4		33010		1	18.4

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.33	2.5	95.4		0.174	4	2.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1ART	2.33	6	2	30663	3075	88.9	0.175	0.175	0.237	RANDOM	27.4

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
x_dihedral_angle_d	23.3
x_scangle_it	2.96
x_scbond_it	1.87
x_mcangle_it	1.82
x_angle_deg	1.3
x_improper_angle_d	1.25
x_mcbond_it	1.06
x_bond_d	0.007
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5955
Nucleic Acid Atoms
Solvent Atoms	321
Heterogen Atoms	30

Software

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