1RD5

Crystal structure of Tryptophan synthase alpha chain homolog BX1: a member of the chemical plant defense system

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.3	293	Malonate, pH 7.3, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.64	53.45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 91.094	α = 90
b = 159.815	β = 90
c = 162.877	γ = 90

Symmetry
Space Group	F 2 2 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	IMAGE PLATE	MAR scanner 345 mm plate		2001-05-07	M	SAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-4	0.934	ESRF	ID14-4

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2	45	92.7	0.078	13.8	5.7		37043		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.1	52.7		0.34		2.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	2.02	25	35151	35151	1851	100	0.24804	0.24545	0.29867	RANDOM	21.01

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]
0.9			-0.57		-0.33

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	7.321
r_scangle_it	7.032
r_scbond_it	4.553
r_angle_refined_deg	3.021
r_mcangle_it	2.763
r_mcbond_it	1.776
r_angle_other_deg	1.695
r_symmetry_hbond_refined	0.313
r_symmetry_vdw_other	0.275
r_symmetry_vdw_refined	0.264
r_nbd_other	0.252
r_nbd_refined	0.247
r_xyhbond_nbd_refined	0.211
r_chiral_restr	0.206
r_nbtor_other	0.11
r_bond_refined_d	0.046
r_gen_planes_refined	0.015
r_gen_planes_other	0.011
r_bond_other_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3796
Nucleic Acid Atoms
Solvent Atoms	248
Heterogen Atoms	14

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
XDS	data scaling
SHARP	phasing