2BIG

Radiation damage of the Schiff base in phosphoserine aminotransferase (structure I)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.2		30% PEG 400, 200 MM MGCL2, 5% GLYCEROL, 100 MM TRIS PH 8.2

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 143.801	α = 90
b = 84.297	β = 90
c = 67.264	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MARRESEARCH		2004-07-12	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	EMBL/DESY, HAMBURG BEAMLINE BW7A		EMBL/DESY, HAMBURG	BW7A

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	1.3	12	93.7	0.04	96	6.3		187887		3

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	1.3	1.33	94.7		0.26	3.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	OTHER	FREE R-VALUE	1.3	12	187766	9397	93.7	0.1166	0.1154		0.1559	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
31	4936	6524

RMS Deviations
Key	Refinement Restraint Deviation
s_approx_iso_adps	0.094
s_non_zero_chiral_vol	0.081
s_zero_chiral_vol	0.071
s_similar_adp_cmpnt	0.055
s_angle_d	0.031
s_from_restr_planes	0.0295
s_similar_dist	0.025
s_anti_bump_dis_restr	0.024
s_bond_d	0.013
s_rigid_bond_adp_cmpnt	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5590
Nucleic Acid Atoms
Solvent Atoms	876
Heterogen Atoms	63

Software

Software
Software Name	Purpose
SHELXL-97	refinement
HKL	data reduction
HKL	data scaling

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.