8ATC

COMPLEX OF N-PHOSPHONACETYL-L-ASPARTATE WITH ASPARTATE CARBAMOYLTRANSFERASE. X-RAY REFINEMENT, ANALYSIS OF CONFORMATIONAL CHANGES AND CATALYTIC AND ALLOSTERIC MECHANISMS

X-RAY DIFFRACTION

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Crystallization

Crystal Properties
Matthews coefficient	Solvent content
3.27	62.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 122.11	α = 90
b = 122.11	β = 90
c = 156.17	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

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.5	15

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		2.5	8			0.165

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
p_orthonormal_tor	31
p_staggered_tor	17
p_scangle_it	4
p_mcangle_it	2.8
p_scbond_it	2.3
p_planar_tor	2
p_mcbond_it	1.5
p_singtor_nbd	0.2
p_multtor_nbd	0.2
p_xhyhbond_nbd	0.2
p_chiral_restr	0.1
p_bond_d
p_angle_d
p_angle_deg
p_planar_d
p_hb_or_metal_coord
p_plane_restr
p_xyhbond_nbd
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7106
Nucleic Acid Atoms
Solvent Atoms	932
Heterogen Atoms	34

Software

Software
Software Name	Purpose
PROLSQ	refinement