2QHK | pdb_00002qhk

Crystal structure of methyl-accepting chemotaxis protein from Vibrio parahaemolyticus RIMD 2210633

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	0.1M Bis-Tris, 28% PEG MME 2000, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 112.268	α = 90
b = 112.268	β = 90
c = 62.731	γ = 90

Symmetry
Space Group	I 4 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	2007-02-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97940	APS	19-ID

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.9	79.31	99.28	0.133	27	18.5	15122	15013		2	34

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.9	1.957	0.934		0.62	5	17	1152

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.91	79.31	15013	15013	786	99.28	0.17369	0.17174	0.1718	0.21274	0.2032	RANDOM	34.312

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]
-0.03			-0.03		0.07

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.374
r_dihedral_angle_4_deg	21.261
r_dihedral_angle_3_deg	13.137
r_dihedral_angle_1_deg	5.81
r_scangle_it	3.839
r_scbond_it	2.769
r_mcangle_it	1.491
r_angle_refined_deg	1.342
r_mcbond_it	1.137
r_nbtor_refined	0.306

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	35.374
r_dihedral_angle_4_deg	21.261
r_dihedral_angle_3_deg	13.137
r_dihedral_angle_1_deg	5.81
r_scangle_it	3.839
r_scbond_it	2.769
r_mcangle_it	1.491
r_angle_refined_deg	1.342
r_mcbond_it	1.137
r_nbtor_refined	0.306
r_symmetry_hbond_refined	0.269
r_nbd_refined	0.202
r_symmetry_vdw_refined	0.144
r_xyhbond_nbd_refined	0.142
r_chiral_restr	0.098
r_bond_refined_d	0.014
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1176
Nucleic Acid Atoms
Solvent Atoms	251
Heterogen Atoms	6

Software

Software
Software Name	Purpose
REFMAC	refinement
SBC-Collect	data collection
HKL-3000	data reduction
HKL-3000	data scaling
HKL-3000	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 R01GM157729.