3JWK

Crystal structure of Bacillus anthracis (Y102F) dihydrofolate reductase complexed with NADPH and (S)-2,4-diamino-5-(3-methoxy-3-(3,4,5-trimethoxyphenyl)prop-1-ynyl)-6-methylpyrimidine (UCP114A)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3EOB	PDB entry 3EOB

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.75	298	Initially grown in 25% PEG 10000, 0.1 M MES. Macroseeding in 10% PEG 10000, 0.1 M MES, pH 6.75, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.56	51.91

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 77.858	α = 90
b = 77.858	β = 90
c = 67.526	γ = 90

Symmetry
Space Group	P 42

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	77.2	CCD	ADSC QUANTUM 315		2009-08-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.9966	NSLS	X25

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	2.08	42.68	100	0.161	0.161	26.1	7.3	23117	23117		-3

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	2.08	2.13	100		0.463	0.463	4.9	7.3	1697

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 3EOB	2.08	42.68	23117	23117	1240	99.98	0.18453	0.18453	0.18299	0.21293	RANDOM	25.53

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
r_dihedral_angle_2_deg	34.859
r_dihedral_angle_3_deg	14.879
r_dihedral_angle_4_deg	14.325
r_dihedral_angle_1_deg	6.039
r_scangle_it	2.412
r_scbond_it	1.659
r_angle_refined_deg	1.398
r_mcangle_it	1.129
r_mcbond_it	0.687
r_nbtor_refined	0.306
r_symmetry_vdw_refined	0.198
r_nbd_refined	0.19
r_symmetry_hbond_refined	0.144
r_xyhbond_nbd_refined	0.128
r_chiral_restr	0.095
r_bond_refined_d	0.01
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2758
Nucleic Acid Atoms
Solvent Atoms	261
Heterogen Atoms	148

Software

Software
Software Name	Purpose
CBASS	data collection
PHASER	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling