6PY4

Crystal structure of ligand-binding domain of Pseudomonas fluorescens chemoreceptor CtaA in complex with L-leucine

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298	Ammonium sulfate and Tris-HCl

Crystal Properties
Matthews coefficient	Solvent content
2.83	56.52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 70.21	α = 90
b = 71.44	β = 90
c = 112.77	γ = 90

Symmetry
Space Group	I 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	ADSC QUANTUM 210r		2017-10-09	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 Sym 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	2	60.349	99.8	0.076	0.083	0.032	13.7	6.7		19503

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Rrim I (All)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.11	100		0.311	0.311	0.336	0.126	2.3	7

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3C8C	2	33.3	18531	964	99.66	0.1928	0.1905	0.2375	RANDOM	40.122

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]
7.21			-2.38		-4.83

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	26.87
r_dihedral_angle_4_deg	17.371
r_dihedral_angle_3_deg	12.413
r_dihedral_angle_1_deg	6.425
r_angle_refined_deg	1.552
r_angle_other_deg	0.848
r_chiral_restr	0.094
r_gen_planes_refined	0.01
r_bond_refined_d	0.009
r_gen_planes_other	0.002

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	26.87
r_dihedral_angle_4_deg	17.371
r_dihedral_angle_3_deg	12.413
r_dihedral_angle_1_deg	6.425
r_angle_refined_deg	1.552
r_angle_other_deg	0.848
r_chiral_restr	0.094
r_gen_planes_refined	0.01
r_bond_refined_d	0.009
r_gen_planes_other	0.002
r_bond_other_d	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1676
Nucleic Acid Atoms
Solvent Atoms	128
Heterogen Atoms	9

Software

Software
Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
iMOSFLM	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.