Experiment: 5SSW

DHFR:NADP+:FOL complex at 270 K (multi-crystal)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	7LVC	7LVC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.6	277	20 mM imadazole (pH 5.4-5.8), 16-21% PEG 400, 125 mM MnCl2

Crystal Properties
Matthews coefficient	Solvent content
2.12	41.94

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 34.1	α = 90
b = 45.276	β = 90
c = 99.075	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	270	PIXEL	DECTRIS EIGER2 S 16M		2021-11-20		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL12-1	0.826533	SSRL	BL12-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	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	1.06	49.54	99.4	0.517	0.05	0.999	36.9	109.1		133686			15.47

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.06	1.08		96.7	2.408	0.48	1.4	107.7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	FREE R-VALUE	7LVC	1.06	22.64	1.34	133550	6639	99.29	0.1243	0.1234	0.1308	0.1439	0.1477	21.22

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
f_dihedral_angle_d	13.2445
f_angle_d	1.1372
f_chiral_restr	0.0973
f_plane_restr	0.0104
f_bond_d	0.0089

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1270
Nucleic Acid Atoms
Solvent Atoms	165
Heterogen Atoms	83

Software

Software
Software Name	Purpose
DIALS	data reduction
DIALS	data scaling
PHENIX	refinement
PHENIX	phasing