Experiment: 9MG7

Crystal structure of Purine nucleoside phosphorylase from Trichomonas vaginalis (phosphate bound)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
in silico model	AlphaFold	AF-A2EU62-F1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.2	291	JCSG+ B6: 0.1 M potassium phosphate/citrate, pH 4.2, 40% (v/v) etahnol, 5% (w/v) PEG 1000. TrvaA.01033.d.B1.PW39308 at 17.4 mg/mL. phosphate acquired from the crystallization. plate 14462 well C8 drop 1, Puck: PSL1213, Cryo: 80% crystallant + 20% glycerol.

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 93.391	α = 90
b = 93.391	β = 90
c = 132.57	γ = 120

Symmetry
Space Group	H 3 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	PIXEL	DECTRIS EIGER2 XE 9M		2024-10-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS-II BEAMLINE 19-ID	0.9786	NSLS-II	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	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	1.27	46.7	98.8	0.078	0.08	0.018	0.999	23.8	18		57938

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.27	1.3		88.5	1.007	1.076	0.366	0.713		8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	1.27	46.7	1.34	57918	2902	98.74	0.1405	0.1394	0.1405	0.1614	0.1623

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	12.526
f_angle_d	0.923
f_chiral_restr	0.078
f_plane_restr	0.009
f_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1823
Nucleic Acid Atoms
Solvent Atoms	247
Heterogen Atoms	11

Software

Software
Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
PHASER	phasing