4YN8

Crystal Structure of Response Regulator ChrA in Heme-Sensing Two Component System

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	277	1.6 M magnesium sulfate, 0.1 M MES

Crystal Properties
Matthews coefficient	Solvent content
3.52	65.09

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.88	α = 90
b = 84.88	β = 90
c = 169.3	γ = 90

Symmetry
Space Group	I 41 2 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	CCD	ADSC QUANTUM 315	mirrors	2012-02-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SPRING-8 BEAMLINE BL41XU	1.00	SPring-8	BL41XU

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym I (Observed)	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	1.8	30	98.1	0.096	0.096	30.035	14.1		28694		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.86	97		0.418	0.418	7.843	14.3

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	3EUL	1.8	28.28	27233	1449	98.02	0.1775	0.1762	0.2018	RANDOM	16.295

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]
-0.07			-0.07		0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.384
r_dihedral_angle_4_deg	20.839
r_dihedral_angle_3_deg	13.564
r_dihedral_angle_1_deg	5.386
r_angle_refined_deg	1.759
r_angle_other_deg	0.869
r_chiral_restr	0.105
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.001

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.384
r_dihedral_angle_4_deg	20.839
r_dihedral_angle_3_deg	13.564
r_dihedral_angle_1_deg	5.386
r_angle_refined_deg	1.759
r_angle_other_deg	0.869
r_chiral_restr	0.105
r_bond_refined_d	0.016
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1507
Nucleic Acid Atoms
Solvent Atoms	197
Heterogen Atoms	27

Software

Software
Software Name	Purpose
HKL-2000	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
BALBES	phasing
Coot	model building

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.