3IJD

Uncharacterized protein Cthe_2304 from Clostridium thermocellum binds two copies of 5-methyl-5,6,7,8-tetrahydrofolic acid

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	5	294	100mM Bis-Tris pH 5.0, 25% PEG 3350, 200mM magnesium chloride, vapor diffusion, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
2.24	45.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 51.581	α = 94.68
b = 52.368	β = 97.68
c = 60.918	γ = 90.57

Symmetry
Space Group	P 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	MARMOSAIC 225 mm CCD		2009-07-23	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97958	APS	31-ID

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	29.071	96	0.068	0.068	10.2	3.9	42575	40872			28.8

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)
	2	2.11	95.6		0.296	0.296	3.3	3.9	5948

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	SAD	THROUGHOUT	2	20	42515	40831	2095	96.04	0.221	0.218	0.265	RANDOM	38.873

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]
3.5	-3.65	-1.9		-0.44	-4.15

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.698
r_dihedral_angle_4_deg	16.718
r_dihedral_angle_3_deg	15.957
r_dihedral_angle_1_deg	5.839
r_scangle_it	2.975
r_scbond_it	1.846
r_angle_refined_deg	1.405
r_mcangle_it	1.393
r_angle_other_deg	0.877
r_mcbond_it	0.768

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.698
r_dihedral_angle_4_deg	16.718
r_dihedral_angle_3_deg	15.957
r_dihedral_angle_1_deg	5.839
r_scangle_it	2.975
r_scbond_it	1.846
r_angle_refined_deg	1.405
r_mcangle_it	1.393
r_angle_other_deg	0.877
r_mcbond_it	0.768
r_mcbond_other	0.145
r_chiral_restr	0.079
r_bond_refined_d	0.013
r_gen_planes_refined	0.006
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4483
Nucleic Acid Atoms
Solvent Atoms	110
Heterogen Atoms	132

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
MOSFLM	data reduction
SHELXCD	phasing
SHELXE	model building

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.