2QTL

Crystal Structure of the FAD-containing FNR-like Module of Human Methionine Synthase Reductase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	7.5	277	0.1M Tris Hcl, 0.2M KBr, 15% PEG 4000, pH 7.5, VAPOR DIFFUSION, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.21	44.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 52.641	α = 90
b = 67.298	β = 107.69
c = 78.817	γ = 90

Symmetry
Space Group	P 1 21 1

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 4	monochromator	2005-12-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-3	0.934	ESRF	ID14-3

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	1.9	30	98.2	0.04	17.5		40653	40653

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	1.9	1.97	97.5		0.261			4024

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	1.9	19.85	40609	40609	2034	100	0.18667	0.18667	0.184	0.232	RANDOM	31.18

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		-0.01

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.129
r_dihedral_angle_1_deg	17.089
r_dihedral_angle_4_deg	16.446
r_dihedral_angle_3_deg	13.309
r_scangle_it	3.517
r_scbond_it	2.369
r_mcangle_it	1.632
r_angle_refined_deg	1.527
r_mcbond_it	1.018
r_xyhbond_nbd_refined	0.687

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	37.129
r_dihedral_angle_1_deg	17.089
r_dihedral_angle_4_deg	16.446
r_dihedral_angle_3_deg	13.309
r_scangle_it	3.517
r_scbond_it	2.369
r_mcangle_it	1.632
r_angle_refined_deg	1.527
r_mcbond_it	1.018
r_xyhbond_nbd_refined	0.687
r_nbtor_refined	0.308
r_symmetry_vdw_refined	0.194
r_nbd_refined	0.192
r_symmetry_hbond_refined	0.137
r_chiral_restr	0.11
r_bond_refined_d	0.016
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3483
Nucleic Acid Atoms
Solvent Atoms	381
Heterogen Atoms	43

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.