2O2Q

Crystal structure of the C-terminal domain of rat 10'formyltetrahydrofolate dehydrogenase in complex with NADP

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1BI9	PDB entry 1BI9

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	288	1.4 M AMMONIUM SULPHATE, 0.1M TRIS, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 288K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 259.4	α = 90
b = 194.5	β = 108.8
c = 97.3	γ = 90

Symmetry
Space Group	C 1 2 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 300 mm CCD		2005-10-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-ID	1.0	APS	22-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	50	97.3	0.136	0.136	5.8	4.8	299165	299165			19.9

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)
1	2	2.07	85.3		0.552	0.552	1.7	3.1	26210

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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	PDB entry 1BI9	2	50	299163	299163	14997	97.3	0.169	0.169	0.168	0.19	RANDOM	19.44

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]
0.24		0.62	-0.04		0.2

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.677
r_dihedral_angle_4_deg	22.935
r_dihedral_angle_3_deg	13.661
r_dihedral_angle_1_deg	6.375
r_scangle_it	2.727
r_scbond_it	1.764
r_angle_refined_deg	1.293
r_mcangle_it	0.988
r_mcbond_it	0.604
r_nbtor_refined	0.3
r_nbd_refined	0.189
r_symmetry_vdw_refined	0.146
r_xyhbond_nbd_refined	0.124
r_symmetry_hbond_refined	0.104
r_chiral_restr	0.085
r_bond_refined_d	0.012
r_gen_planes_refined	0.004
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	15296
Nucleic Acid Atoms
Solvent Atoms	1844
Heterogen Atoms	360

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing