7QY6

Structure of E.coli Class 2 L-asparaginase EcAIII, wild type (WT EcAIII)

X-RAY DIFFRACTION

---

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8.5	293	20% PEG 6000, 0.2 M MgCl2 in 0.1M Tris-HCl pH 8.5

Crystal Properties
Matthews coefficient	Solvent content
2.1	41.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 50.478	α = 90
b = 75.347	β = 90
c = 147.991	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 PILATUS 6M		2021-06-21	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)	0.97000	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	1.55	75.35	99.5	0.167	0.158	0.997	9.36	12.2		83105

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	1.55	1.64	98		1.39	1.237	0.904	1.62

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	FREE R-VALUE	2ZAL	1.65	67.236	68544	814	99.587	0.193	0.1926	0.2348	28.294

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]
4.036			-0.969		-3.067

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	28.418
r_dihedral_angle_4_deg	15.917
r_dihedral_angle_3_deg	12.857
r_dihedral_angle_1_deg	6.848
r_lrange_it	5.274
r_lrange_other	5.191
r_scangle_it	2.538
r_scangle_other	2.538
r_mcangle_it	2.039
r_mcangle_other	2.039
r_angle_refined_deg	1.694
r_scbond_it	1.605
r_scbond_other	1.602
r_angle_other_deg	1.564
r_mcbond_it	1.348
r_mcbond_other	1.346
r_nbd_other	0.211
r_nbd_refined	0.21
r_symmetry_nbd_other	0.182
r_symmetry_nbd_refined	0.174
r_nbtor_refined	0.166
r_symmetry_xyhbond_nbd_refined	0.159
r_xyhbond_nbd_refined	0.141
r_metal_ion_refined	0.112
r_chiral_restr	0.086
r_symmetry_nbtor_other	0.086
r_ncsr_local_group_1	0.081
r_ncsr_local_group_2	0.067
r_bond_refined_d	0.012
r_gen_planes_refined	0.009
r_bond_other_d	0.003
r_gen_planes_other	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4209
Nucleic Acid Atoms
Solvent Atoms	410
Heterogen Atoms	4

Software

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