4E2B

High resolution crystal structure of the old yellow enzyme from Trypanosoma cruzi

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	292	28% (w/v) polyethylene glycol 1500 and 0.3 M ammonium fluoride, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 292K

Crystal Properties
Matthews coefficient	Solvent content
1.97	37.57

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.347	α = 90
b = 68.656	β = 90
c = 85.19	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	100	CCD	MARMOSAIC 225 mm CCD		2011-10-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LNLS BEAMLINE W01B-MX2	1.46	LNLS	W01B-MX2

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	1.269	30	98.3	0.047		4.9	105031	87922	1	2

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	1.269	1.32	99.9		0.522		4.6

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 3ATY	1.269	22.48	87922	83454	4409	98.3	0.14718	0.14592	0.17084	RANDOM	14.677

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]
-1.29			-0.25		1.54

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.749
r_dihedral_angle_4_deg	16.442
r_sphericity_free	11.695
r_dihedral_angle_3_deg	11.613
r_sphericity_bonded	6.726
r_dihedral_angle_1_deg	5.879
r_rigid_bond_restr	1.784
r_angle_refined_deg	1.161
r_chiral_restr	0.079
r_bond_refined_d	0.005

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.749
r_dihedral_angle_4_deg	16.442
r_sphericity_free	11.695
r_dihedral_angle_3_deg	11.613
r_sphericity_bonded	6.726
r_dihedral_angle_1_deg	5.879
r_rigid_bond_restr	1.784
r_angle_refined_deg	1.161
r_chiral_restr	0.079
r_bond_refined_d	0.005
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2965
Nucleic Acid Atoms
Solvent Atoms	363
Heterogen Atoms	70

Software

Software
Software Name	Purpose
NatXray	data collection
MOLREP	phasing
REFMAC	refinement
DENZO	data reduction
SCALEPACK	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 R01GM133198.