3FQV

Staphylococcus aureus F98Y mutant dihydrofolate reductase complexed with NADPH and 2,4-diamino-5-[3-(3-methoxy-4-phenylphenyl)but-1-ynyl]-6-methylpyrimidine

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
other		Sa F98Y DHFR bound to Folate and NADPH (Dale et al., J.Mol.Biol. 1997, structure not deposited in the PDB)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	277	15% PEG 10000, 150mM Sodium acetate, 100mM MES pH 6.5, 5% Butyrlactone, VAPOR DIFFUSION, HANGING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.7	54.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.897	α = 90
b = 78.897	β = 90
c = 108.189	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	77.2	CCD	ADSC QUANTUM 315		2008-06-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X29A	1.080900	NSLS	X29A

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	1.85	37.06	99.2	0.047	0.047	2.7	10		16597		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	1.85	1.92	99.5		0.096	0.096	0.9	8.1	1203

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	DIFFERENCE FOURIER	THROUGHOUT	Sa F98Y DHFR bound to Folate and NADPH (Dale et al., J.Mol.Biol. 1997, structure not deposited in the PDB)	1.85	37.06	16597	16597	888	99.2	0.225	0.225	0.223	0.266	RANDOM	18.144

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]
-0.01			-0.01		0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.856
r_dihedral_angle_3_deg	14.161
r_dihedral_angle_4_deg	11.555
r_dihedral_angle_1_deg	6.712
r_scangle_it	1.732
r_angle_refined_deg	1.417
r_scbond_it	1.078
r_mcangle_it	1.012
r_mcbond_it	0.58
r_nbtor_refined	0.308

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.856
r_dihedral_angle_3_deg	14.161
r_dihedral_angle_4_deg	11.555
r_dihedral_angle_1_deg	6.712
r_scangle_it	1.732
r_angle_refined_deg	1.417
r_scbond_it	1.078
r_mcangle_it	1.012
r_mcbond_it	0.58
r_nbtor_refined	0.308
r_symmetry_vdw_refined	0.279
r_symmetry_hbond_refined	0.231
r_nbd_refined	0.192
r_xyhbond_nbd_refined	0.144
r_chiral_restr	0.094
r_bond_refined_d	0.007
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1274
Nucleic Acid Atoms
Solvent Atoms	147
Heterogen Atoms	75

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
Coot	model building
CCP4	phasing

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 R01GM157729.