4NCX

Crystal Structure of Prolyl-tRNA synthetase (ProRS, Proline--tRNA ligase) from Plasmodium falciparum 3D7

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	4HVC	PDB entry 4HVC

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	289	Morpheus(b2): 0.1M each MES, Imidazole, pH 6.5, 0.09M each NaF, NaBr, NaI, 30% ethylene glycol, PEG-8000 and 5mM L-Proline, 5mM ATP, VAPOR DIFFUSION, SITTING DROP, temperature 289K

Crystal Properties
Matthews coefficient	Solvent content
2.45	49.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 147.96	α = 90
b = 91.38	β = 129.48
c = 110.84	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 225 mm CCD	Beryllium Lenses	2013-10-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.9786	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.85	50	99.2	0.049	19.36	4.5	97461	96638		-3	32.393

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.85	1.9	99.2		0.491	3.11

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 4HVC	1.85	46.46	101469	96637	4832	99.52	0.1709	0.169	0.2064	RANDOM	33.037

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]
0.85		0.32	0.39		-0.75

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.708
r_dihedral_angle_4_deg	20.676
r_dihedral_angle_3_deg	12.711
r_dihedral_angle_1_deg	6.52
r_mcangle_it	2.243
r_angle_refined_deg	1.511
r_mcbond_it	1.44
r_mcbond_other	1.437
r_angle_other_deg	0.833
r_chiral_restr	0.1

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.708
r_dihedral_angle_4_deg	20.676
r_dihedral_angle_3_deg	12.711
r_dihedral_angle_1_deg	6.52
r_mcangle_it	2.243
r_angle_refined_deg	1.511
r_mcbond_it	1.44
r_mcbond_other	1.437
r_angle_other_deg	0.833
r_chiral_restr	0.1
r_bond_refined_d	0.013
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7084
Nucleic Acid Atoms
Solvent Atoms	604
Heterogen Atoms	27

Software

Software
Software Name	Purpose
XSCALE	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.