2QHX

Structure of Pteridine Reductase from Leishmania major complexed with a ligand

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.5		11-14% PEG 5000, 0.1M SODIUM ACETATE, 0.04-0.14M CALCIUM ACETATE, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K, pH 5.50

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 95.499	α = 90
b = 104.231	β = 90
c = 136.865	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	IMAGE PLATE	RIGAKU RAXIS IV			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.61	28.6					40483

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.61	2.67

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-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.61	28.6	40435	2030	95.3	0.183	0.228	RANDOM	20.29

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			0.96		-0.65

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.112
r_dihedral_angle_4_deg	14.57
r_dihedral_angle_3_deg	13.194
r_dihedral_angle_1_deg	8.275
r_scangle_it	2.921
r_scbond_it	2.052
r_mcangle_it	1.422
r_angle_refined_deg	1.129
r_mcbond_it	0.776
r_nbtor_refined	0.305
r_symmetry_vdw_refined	0.207
r_nbd_refined	0.191
r_xyhbond_nbd_refined	0.129
r_symmetry_hbond_refined	0.112
r_chiral_restr	0.079
r_bond_refined_d	0.007
r_gen_planes_refined	0.003
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	7789
Nucleic Acid Atoms
Solvent Atoms	806
Heterogen Atoms	390

Software

Software
Software Name	Purpose
MOLREP	phasing
REFMAC	refinement
CrystalClear	data reduction
SCALEPACK	data scaling