2GD9

Crystal structure of a putative dihydrofolate reductase (bsu40760, yyap) from bacillus subtilis at 2.30 A resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION,SITTING DROP,NANODROP	7.9	277	0.2M (NH4)2HPO4, 20.0% PEG-3350, No Buffer pH 7.9, VAPOR DIFFUSION,SITTING DROP,NANODROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
3.57	65.3

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.915	α = 90
b = 64.915	β = 90
c = 143.648	γ = 90

Symmetry
Space Group	P 43

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	ADSC QUANTUM 210		2005-10-12	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.019859, 0.979718	ALS	8.3.1

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	2.3	64.957	100	0.114	0.114	6.2	3.7		26393

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	2.3	2.36		100	0.747	0.747	1	3.7

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	2.3	59.16	26334	1364	99.93	0.21	0.20966	0.207	0.254	RANDOM	31.972

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]
0.77			0.77		-1.54

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.179
r_dihedral_angle_3_deg	16.373
r_dihedral_angle_4_deg	12.522
r_dihedral_angle_1_deg	6.871
r_scangle_it	2.483
r_scbond_it	1.607
r_angle_refined_deg	1.524
r_mcangle_it	1.17
r_angle_other_deg	0.855
r_mcbond_it	0.708
r_symmetry_vdw_other	0.197
r_nbd_other	0.181
r_xyhbond_nbd_refined	0.179
r_nbtor_refined	0.17
r_symmetry_vdw_refined	0.168
r_nbd_refined	0.164
r_symmetry_hbond_refined	0.15
r_mcbond_other	0.126
r_nbtor_other	0.084
r_chiral_restr	0.082
r_bond_refined_d	0.016
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2825
Nucleic Acid Atoms
Solvent Atoms	155
Heterogen Atoms	27

Software

Software
Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
PDB_EXTRACT	data extraction
MOSFLM	data reduction
CCP4	data scaling
SHELXD	phasing
autoSHARP	phasing