Experiment: 8EC4

XFEL structure of Mycobacterium tuberculosis beta lactamase microcrystals mixed with sulbactam for 240ms

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6B5X

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	BATCH MODE	4.1	300	2.4 M ammonium phosphate

Crystal Properties
Matthews coefficient	Solvent content
3.67	66.51

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 79.82	α = 90
b = 97.89	β = 109.34
c = 113.17	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	300	PIXEL	SLAC ePix10k 2M		2020-10-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	FREE ELECTRON LASER	SLAC LCLS BEAMLINE MFX	1.26	SLAC LCLS	MFX

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	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	2.35	22.42	100	0.97	3.78	446		68441			57.97

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.35	2.43	100		0.25

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	6b5x	2.35	22.42	1.33	53682	2696	78.45	0.2425	0.2408	0.2413	0.2747	0.2747	60.88

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	6.3251
f_angle_d	0.8018
f_chiral_restr	0.0389
f_plane_restr	0.0036
f_bond_d	0.002

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7952
Nucleic Acid Atoms
Solvent Atoms	297
Heterogen Atoms	80

Software

Software
Software Name	Purpose
PHENIX	refinement
CrystFEL	data reduction
CrystFEL	data scaling
PHASER	phasing