Experiment: 8YCV

HosA transcriptional regulator from enteropathogenic Escherichia coli O127:H6 (strain E2348/69) bound with 4-hydroxy benzoic acid - Conformation II at 2.16 angstrom resolution (STARANISO processed)

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	8PQ4	Apoprotein

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	MICROBATCH	6.2	277.15	Sodium phosphate dibasic/ Potassium phosphate monobasic, Sodium chloride, PEG 200

Crystal Properties
Matthews coefficient	Solvent content
3.24	62.04

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 67.169	α = 90
b = 67.169	β = 90
c = 95.104	γ = 90

Symmetry
Space Group	P 43 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	MARMOSAIC 225 mm CCD		2023-09-13	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	RRCAT INDUS-2 BEAMLINE PX-BL21	0.978930	RRCAT INDUS-2	PX-BL21

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	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	2.16	67.17	73.2	0.135	0.147	0.055	0.997	9.4	6.8		8907			30.44

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rrim I (All)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.16	2.33	19.3		1.022	1.172	0.553	0.46	1.4	4.1

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	2.16	67.17	1.36	8905	463	73.16	0.2035	0.2018	0.202	0.2319	0.2319	41.99

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	14.3608
f_angle_d	0.4995
f_chiral_restr	0.0332
f_plane_restr	0.0047
f_bond_d	0.0027

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1071
Nucleic Acid Atoms
Solvent Atoms	51
Heterogen Atoms	24

Software

Software
Software Name	Purpose
autoPROC	data processing
XDS	data reduction
Aimless	data scaling
STARANISO	data scaling
PHASER	phasing
Coot	model building
PHENIX	refinement