Experiment: 6PNZ

The structure of the Aspartate Transcarbamoylase trimer from Staphylococcus aureus complexed with PALA at 2.27 Resolution.

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3R7D

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	1uL Protein Solution: ATC Staac (8 mg/ml) with 200uM PALA 50mM Tris 7.5, 200mM NaCl, 1mM dithiothreitol (DTT) + 1uL Well Solution: 2M ammonium sulfate., 5% PEG 400, 0.1M 2-(N-morpholino) ethane sulfonic acid (MES) pH6.5

Crystal Properties
Matthews coefficient	Solvent content
2.74	55.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 111.998	α = 90
b = 111.998	β = 90
c = 151.358	γ = 120

Symmetry
Space Group	P 32 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	2017-08-22	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

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	2.27	96.99	96.9	0.06	0.064	0.023	1	21.9	7.3		49596			44.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.27	2.39	100		0.652	0.701	0.252	0.853	2.8	7.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3R7D	2.27	96.99	47164	2402	96.82	0.18243	0.18111	0.1927	0.20779	0.2155	RANDOM	32.552

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]
0.2	0.1		0.2		-0.66

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7011
Nucleic Acid Atoms
Solvent Atoms	179
Heterogen Atoms	48

Software

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