Experiment: 2IPO

E. coli Aspartate Transcarbamoylase complexed with N-phosphonacetyl-L-asparagine

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICRODIALYSIS	5.7	295	50 mM Maleic acid, 1 mM N-phosphonacetyl-L-asparagine, 3 mM Sodium Azide, pH 5.7, MICRODIALYSIS, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
3.15	61.01

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 120.475	α = 90
b = 120.475	β = 90
c = 155.087	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	100	IMAGE PLATE	RIGAKU RAXIS IV		2006-02-13	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	2.6	30	99.8	0.102	9.3	4.66		40525

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)
	2.6	2.69	100		0.349	4.1	4.77	4005

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 (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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1D09	2.6	30	40525	40469	4078	99.7	0.238	0.238	0.201	0.201	0.253	0.2511	Random	46.377

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]
-1.674	-8.37		-1.674		3.347

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.834
c_mcangle_it	2.379
c_scbond_it	1.828
c_mcbond_it	1.374
c_angle_deg	1.307
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7232
Nucleic Acid Atoms
Solvent Atoms	373
Heterogen Atoms	50

Software

Software
Software Name	Purpose
d*TREK	data processing
CNS	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
d*TREK	data reduction
d*TREK	data scaling
CNS	phasing