8F8U

Bifunctional ligase/repressor BirA from Klebsiella pneumoniae (Domain Swapped Dimer)

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	291	Morpheus G3: 20%(v/v) Glycerol, 10% w/v PEG 4000, 100 mM Imidazole/MES, pH 6.5, 20 mM Sodium formate, 20 mM Ammonium acetate, 20 mM Sodium citrate tribasic, 20 mM Potassium sodium tartrate and 20 mM Sodium oxamate, KlpnC.17896.a.B1.PW39036 at 30 mg/mL. Tray: Clover-Liu-S-045 / B1 , Puck: CPS5110_06, Cryo: 150% Morpheus G3. Protein crystals were dehydrated in this solution for 3 days before freezing.

Crystal Properties
Matthews coefficient	Solvent content
3.13	60.71

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.91	α = 90
b = 155.74	β = 90
c = 58.75	γ = 90

Symmetry
Space Group	P 21 21 2

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 EIGER2 XE 9M		2022-10-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS-II BEAMLINE 19-ID	0.97949	NSLS-II	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.85	84.093	94.2	0.062	1	17.1	6.7		20235

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.85	2.98	49.3		1.709	0.427	1	6.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	FREE R-VALUE	2.85	29.74	1.34	20186	1001	91.31	0.2167	0.2147	0.2552

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	18.533
f_angle_d	0.788
f_chiral_restr	0.055
f_plane_restr	0.007
f_bond_d	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4541
Nucleic Acid Atoms
Solvent Atoms	2
Heterogen Atoms	10

Software

Software
Software Name	Purpose
PHENIX	refinement
XSCALE	data scaling
XDS	data reduction
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 R01GM133198.