6V2B | pdb_00006v2b

Complex of double mutant (T89V,K162T) of E. coli L-asparaginase II with L-Asn

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3ECA

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.5	298	Crystals grown at 0.17 M sodium citrate (pH 6) and 17-18% (w/v) PEG3350. Soaked for 1-2 minutes (empirically determined for each crystal) in equivalent solution with 0.025% (w/v) glutaraldehyde. Finally transferred and soaked for 10-20 sec in solution containing 40% (w/v) PEG3350, 5 mM L-Asn, and 0.17 M sodium citrate (pH 5.5)

Crystal Properties
Matthews coefficient	Solvent content
2.08	40.74

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 151.224	α = 90
b = 62.578	β = 117.67
c = 140.886	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	PIXEL	DECTRIS EIGER X 4M		2017-02-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU MICROMAX-007 HF	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	2.05	40	95.7	0.047	0.057	0.033	12.5	2.8		70596

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.05	2.09	94.6		0.512	0.632	0.364	0.706		2.5

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 (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3eca	2.05	26.55	65221	3396	93.28	0.1547	0.1522	0.2013	RANDOM	28.11

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]
0.09		0.01	-0.2		0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.397
r_dihedral_angle_4_deg	18.678
r_dihedral_angle_3_deg	15.496
r_dihedral_angle_1_deg	7.376
r_angle_refined_deg	1.915
r_angle_other_deg	1.472
r_chiral_restr	0.091
r_bond_refined_d	0.015
r_gen_planes_refined	0.011
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.397
r_dihedral_angle_4_deg	18.678
r_dihedral_angle_3_deg	15.496
r_dihedral_angle_1_deg	7.376
r_angle_refined_deg	1.915
r_angle_other_deg	1.472
r_chiral_restr	0.091
r_bond_refined_d	0.015
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9619
Nucleic Acid Atoms
Solvent Atoms	679
Heterogen Atoms	75

Software

Software
Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
PHASER	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.