6NX9 | pdb_00006nx9

ECAII(D90T,K162T) MUTANT IN COMPLEX WITH CITRATE AT PH 7

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	293	Protein, at the concentration 15 mg/ml in 50 mM HEPES buffer pH 7 and 150 mM sodium chloride was mixed with equivolume solution of precipitant that contained, 17% (w/v) PEG3350 and 0.17 M ammonium citrate pH 7. Resulting droplets were equilibrated against the precipitant. Before data collection, crystal was transferred the precipitant containing L-Asn at concentration 20 mM. Subsequently, for the data collection, crystal was briefly transferred to cryo-protecting solution, which had the same composition as precipitant (with L-Asn), except concentration of PEG3350 was increased to 35 % (v/w/) and 10% (v/v), and also contained 15% of glycerol

Crystal Properties
Matthews coefficient	Solvent content
2.03	39.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 152.009	α = 90
b = 62.539	β = 118.19
c = 143.239	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 R 4M	Multilayer X-ray mirrors VariMax HF	2018-04-12	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	1.97	40	96.6	0.095	0.113	0.061	7.1	3.3		81136

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	1.97	2	92.1		0.511	0.631	0.365	0.674		2.6

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 (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	1.97	26.55	78318	2654	96.3	0.1617	0.1595	0.1695	0.2257	0.2314	RANDOM	25.501

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]
0.08		-0.01	-0.3		0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.356
r_dihedral_angle_4_deg	18.079
r_dihedral_angle_3_deg	15.445
r_dihedral_angle_1_deg	7.399
r_angle_refined_deg	2.29
r_angle_other_deg	1.586
r_chiral_restr	0.113
r_bond_refined_d	0.02
r_gen_planes_refined	0.015
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	9410
Nucleic Acid Atoms
Solvent Atoms	1049
Heterogen Atoms	39

Software

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