1NBE

ASPARTATE TRANSCARBAMOYLASE REGULATORY CHAIN MUTANT (T82A)

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6AT1

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.85		7.5 MG/ML PROTEIN DIALYZED AGAINST 100MM MALIC ACID AT PH 5.85,

Crystal Properties
Matthews coefficient	Solvent content
3.3	59.03

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.47	α = 90
b = 122.47	β = 90
c = 142.77	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	292	AREA DETECTOR	XUONG-HAMLIN MULTIWIRE		1996-07-01	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

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	2.55	31.2	95.5	0.093	6.3	3.9		38085			31

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	2.6	2.7	88.5		0.381	1.2	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	RIGID BODY	IMPLOR-CYCLING TEST SETS	6AT1	2.6	10	2	36315	3631	85	0.177	0.177	0.237	22.31

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
x_dihedral_angle_d	24.8
x_mcangle_it	3.5
x_scbond_it	3.5
x_scangle_it	3.5
x_mcbond_it	2.5
x_angle_deg	1.95
x_improper_angle_d	1.73
x_bond_d	0.017
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7228
Nucleic Acid Atoms
Solvent Atoms	550
Heterogen Atoms	38

Software

Software
Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
SDMS	data reduction
SDMS	data scaling
X-PLOR	phasing