8BKF

Structure of E. coli Class 2 L-asparaginase EcAIII, mutant M200T (crystal M200T#o)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	20-30% PEG4000,10-15% PEG400, 0,2 M magnesium chloride in 100mM Tris-HCl pH 8.5

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.18

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 49.852	α = 90
b = 75.886	β = 90
c = 147.762	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS EIGER X 16M		2022-05-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)	0.976300	PETRA III, EMBL c/o DESY	P13 (MX1)

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	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	1.22	73.89	99.9	0.072	0.075	0.999	16.4	12.7		166404

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.22	1.24	98.6		1.696	1.771	0.596	1.6	12.1

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-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	NONE	2ZAL	1.221	73.89	166293	1018	99.88	0.129	0.1284	0.1502	16.927

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]
0.664			0.012		-0.676

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	27.539
r_dihedral_angle_4_deg	15.415
r_dihedral_angle_3_deg	11.726
r_dihedral_angle_1_deg	6.298
r_lrange_it	2.585
r_lrange_other	2.51
r_scangle_it	1.531
r_scangle_other	1.531
r_angle_other_deg	1.47
r_angle_refined_deg	1.295
r_scbond_it	1.226
r_scbond_other	1.224
r_mcangle_it	1.194
r_mcangle_other	1.194
r_mcbond_it	0.886
r_mcbond_other	0.871
r_rigid_bond_restr	0.725
r_nbd_refined	0.21
r_nbd_other	0.21
r_symmetry_nbd_refined	0.2
r_symmetry_nbd_other	0.168
r_nbtor_refined	0.155
r_symmetry_xyhbond_nbd_refined	0.129
r_xyhbond_nbd_refined	0.126
r_metal_ion_refined	0.103
r_symmetry_nbtor_other	0.081
r_chiral_restr	0.064
r_bond_refined_d	0.006
r_gen_planes_refined	0.005
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4257
Nucleic Acid Atoms
Solvent Atoms	594
Heterogen Atoms	7

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
PHASER	phasing