3SRU

S. aureus Dihydrofolate Reductase complexed with novel 7-aryl-2,4-diaminoquinazolines

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.2	298	PEG 8000, Mg acetate, MPD, ADA buffer, pH 6.2, vapor diffusion, hanging drop, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.5	50.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.105	α = 90
b = 79.105	β = 90
c = 107.095	γ = 120

Symmetry
Space Group	P 61 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				SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.54

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	1.7	68.519	98.5	0.044	0.044	50.7	17.2	22282	22282

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	1.7	1.79	90.8		0.142	0.142	4.9	15.5	2918

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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	1.7	21.1	22238	1136	99.48	0.1827	0.1816	0.2033	RANDOM	18.3

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]
-0.05	-0.03		-0.05		0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.064
r_dihedral_angle_3_deg	13.168
r_dihedral_angle_4_deg	8.45
r_dihedral_angle_1_deg	6.201
r_scangle_it	2.849
r_scbond_it	1.815
r_angle_refined_deg	1.442
r_mcangle_it	1.09
r_mcbond_it	0.694
r_nbtor_refined	0.311

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.064
r_dihedral_angle_3_deg	13.168
r_dihedral_angle_4_deg	8.45
r_dihedral_angle_1_deg	6.201
r_scangle_it	2.849
r_scbond_it	1.815
r_angle_refined_deg	1.442
r_mcangle_it	1.09
r_mcbond_it	0.694
r_nbtor_refined	0.311
r_symmetry_vdw_refined	0.213
r_nbd_refined	0.188
r_xyhbond_nbd_refined	0.134
r_symmetry_hbond_refined	0.097
r_chiral_restr	0.096
r_bond_refined_d	0.011
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1272
Nucleic Acid Atoms
Solvent Atoms	133
Heterogen Atoms	80

Software

Software
Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction

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.