Experiment: 8F8U

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

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1BIA

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	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	0.2167	0.2552	0.2522

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