Experiment: 1XJW

The Structure of E. coli Aspartate Transcarbamoylase Q137A Mutant in The R-State

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1D09

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICRODIALYSIS	5.9	295	12 mg/ml Buffer 50 mM Maleic Acid, 3 mM Sodium Azide 1 mM N-Phosphonacetyl-L-Aspartate, pH 5.9, MICRODIALYSIS, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.5	55

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.116	α = 90
b = 122.116	β = 90
c = 155.928	γ = 120

Symmetry
Space Group	P 3 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	298	AREA DETECTOR	UCSD MARK III		1997-12-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU200	1.5418

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	2.7	7	89	0.0875	10.5	2.8	40234	35809

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	2.7	2.8	85		0.329	2.59	2.9	1380

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 (All)	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	Refinement from pre-existing model	THROUGHOUT	1D09	2.71	7	32110	3580	89	0.178	0.178	0.17	0.1797	0.223	0.224	RANDOM

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7224
Nucleic Acid Atoms
Solvent Atoms	116
Heterogen Atoms	34

Software

Software
Software Name	Purpose
SDMS	data collection
SDMS	data reduction
CNS	refinement
SDMS	data scaling
CNS	phasing