2GU2

Crystal Structure of an Aspartoacylase from Rattus norvegicus

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	PROTEIN SOLUTION (10 MG/ML PROTEIN, 0.050 M SODIUM CHLORIDE, 0.003 M SODIUM AZIDE, 0.0003 M TCEP, 0.005 MES PH 7.0) MIXED IN A 1:1 RATIO WITH THE WELL SOLUTION (1.9 M Ammonium sulfate, 0.10 M HEPPS PH 8.5). Crystal cryo-protected with well solution supplemented with a final concentration of 30% Ethylene glycol, temperature 293K, VAPOR DIFFUSION, HANGING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.33	47.27

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.581	α = 90
b = 135.778	β = 101.49
c = 54.033	γ = 90

Symmetry
Space Group	C 1 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 300 mm CCD	Adjustable focusing mirrors in K-B geometry	2006-04-19	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 23-ID-D	0.97928, 0.95373	APS	23-ID-D

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	1.8	80	97.5	0.093	9.949	7.1		58208

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	1.8	1.84	86.6		0.47	2.167	4.2	3424

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD	THROUGHOUT	1.805	41.75	58208	2955	97.248	0.152	0.1494	0.194	Random	21.762

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]
0.168		0.118	0.098		-0.219

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.806
r_dihedral_angle_3_deg	14.561
r_dihedral_angle_4_deg	14.525
r_scangle_it	7.024
r_dihedral_angle_1_deg	5.845
r_scbond_it	5.098
r_mcangle_it	2.992
r_mcbond_it	1.868
r_angle_refined_deg	1.616
r_nbtor_refined	0.311
r_symmetry_hbond_refined	0.215
r_symmetry_vdw_refined	0.21
r_nbd_refined	0.208
r_xyhbond_nbd_refined	0.177
r_chiral_restr	0.124
r_bond_refined_d	0.02
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4862
Nucleic Acid Atoms
Solvent Atoms	552
Heterogen Atoms	27

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SHARP	phasing
RESOLVE	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
SHELXE	model building
ARP/wARP	model building