4L64

Crystal structure of the Candida albicans Methionine Synthase in complex with 5-Methyl-Tetrahydrofolate

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	293	50 mM NaI, 27% (w/v) PEG 3350, 0.25 mM DTT, 0.15 mM ZnSO4, 5 mM 5-Methyl-Tetrahydrofolate-Glu3, 20 mM Tris-Cl pH 7.4 , VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.862	α = 90
b = 99.124	β = 90
c = 100.719	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	100	CCD	ADSC QUANTUM 315r	Asymmetric cut single crystal Si (220)	2012-05-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 5.0.3	0.97648	ALS	5.0.3

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	2.18	49.61	100	0.083	8.6	7.3	40904	40901

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.18	2.22	100		0.564

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	2.18	49.61	40904	38787	2050	99.87	0.18385	0.18073	0.24333	RANDOM	41.513

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]
0.31			-1.93		1.62

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.539
r_dihedral_angle_3_deg	13.685
r_dihedral_angle_4_deg	13.437
r_dihedral_angle_1_deg	6.478
r_angle_refined_deg	1.701
r_angle_other_deg	0.872
r_chiral_restr	0.092
r_bond_refined_d	0.016
r_gen_planes_refined	0.008
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.539
r_dihedral_angle_3_deg	13.685
r_dihedral_angle_4_deg	13.437
r_dihedral_angle_1_deg	6.478
r_angle_refined_deg	1.701
r_angle_other_deg	0.872
r_chiral_restr	0.092
r_bond_refined_d	0.016
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5506
Nucleic Acid Atoms
Solvent Atoms	312
Heterogen Atoms	34

Software

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

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.