4EW2

The structure of human glycinamide ribonucleotide transformylase in complex with 10S-methylthio-DDATHF.

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	298	0.1 M phosphate/citrate buffer, 1.5-2.0 M ammonium sulfate at p.H 4.2. 25% Glycerol added as cryoprotectant, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
4.46	72.42

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.173	α = 90
b = 78.173	β = 90
c = 229.348	γ = 120

Symmetry
Space Group	P 65 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	100	CCD	MARMOSAIC 325 mm CCD	Flat mirror (vertical focusing), single crystal Si(111) bent monochromator (horizontal focusing)	2007-11-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.9795	SSRL	BL11-1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.6	67.73	99.9	0.04	57.2	11.8		55593			24.8

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.66	100		0.542	4	12	5431

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	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		THROUGHOUT	1.602	67.73	55466	2814	99.86	0.182	0.181	0.211	RANDOM	26.919

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]
0.45	0.22		0.45		-0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.145
r_dihedral_angle_4_deg	13.586
r_dihedral_angle_3_deg	12.577
r_sphericity_free	8.241
r_dihedral_angle_1_deg	5.748
r_sphericity_bonded	5.422
r_scangle_it	4.939
r_scbond_it	3.805
r_rigid_bond_restr	3.322
r_mcangle_it	2.309
r_angle_refined_deg	1.669
r_mcbond_it	1.529
r_angle_other_deg	1.237
r_mcbond_other	0.981
r_chiral_restr	0.099
r_bond_refined_d	0.017
r_gen_planes_refined	0.007
r_gen_planes_other	0.003
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1554
Nucleic Acid Atoms
Solvent Atoms	281
Heterogen Atoms	48

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling