8TEB

Structure of MKbur

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	8.5	293	Sitting drops were set up with 150 nL plus 150 nL volumes over 50 microlitre wells; the crystallisation reservoir contained: 20% PEG 8000, 200 mM MgCl2, 100 mM tris pH 8.5 and 3% trehalose. The protein concentration was about 24 mg/mL

Crystal Properties
Matthews coefficient	Solvent content
2.44	49.53

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 38.338	α = 90
b = 93.034	β = 90.045
c = 90.389	γ = 90

Symmetry
Space Group	P 1 21 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 9M		2022-06-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX1	0.9537	Australian Synchrotron	MX1

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim 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	2.2	46.5	99.5	0.113	0.046	0.998	13.7	7		32249

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.2	2.26	97.9		0.717	0.285	0.849	2.8	7

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	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.2	46.5	32228	1503	99.368	0.188	0.1857	0.2382	34.021

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]
0.669		-0.862	0.992		-1.66

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	17.826
r_dihedral_angle_6_deg	16.965
r_dihedral_angle_3_deg	15.888
r_lrange_it	8.512
r_lrange_other	8.512
r_dihedral_angle_1_deg	6.671
r_scangle_it	6.09
r_scangle_other	6.089
r_mcangle_it	4.358
r_mcangle_other	4.358
r_scbond_it	3.942
r_scbond_other	3.941
r_mcbond_it	2.94
r_mcbond_other	2.939
r_angle_refined_deg	1.289
r_angle_other_deg	0.437
r_nbd_refined	0.209
r_symmetry_nbd_other	0.191
r_nbtor_refined	0.169
r_symmetry_nbd_refined	0.159
r_xyhbond_nbd_refined	0.148
r_nbd_other	0.137
r_ncsr_local_group_1	0.088
r_symmetry_nbtor_other	0.079
r_chiral_restr	0.06
r_symmetry_xyhbond_nbd_refined	0.025
r_bond_refined_d	0.007
r_gen_planes_refined	0.006
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4407
Nucleic Acid Atoms
Solvent Atoms	202
Heterogen Atoms	7

Software

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