2NZH

Crystal structure of a secretion chaperone CsaA from Bacillus subtilis in the space group P 4 21 2

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		291	30% PEG8000, 0.2M Ammonium sulfate, VAPOR DIFFUSION, HANGING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.05

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 109.146	α = 90
b = 109.146	β = 90
c = 37.396	γ = 90

Symmetry
Space Group	P 4 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	102	IMAGE PLATE	RIGAKU RAXIS IV	VariMax Cu HF	2006-08-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.54178

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	54.57	93.3	0.051	31.9	11.11		17190		5

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	1.97	87		0.286	7.2	9.99	1578

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB entry 1GD7	1.9	54.55	17165	17165	885	93.19	0.202	0.202	0.2	0.245	RANDOM	18.294

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]
0.29			0.29		-0.59

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.998
r_dihedral_angle_3_deg	17.727
r_dihedral_angle_4_deg	16.924
r_dihedral_angle_1_deg	6.838
r_scangle_it	3.673
r_scbond_it	2.252
r_angle_refined_deg	1.606
r_mcangle_it	1.267
r_mcbond_it	0.836
r_nbtor_refined	0.309

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.998
r_dihedral_angle_3_deg	17.727
r_dihedral_angle_4_deg	16.924
r_dihedral_angle_1_deg	6.838
r_scangle_it	3.673
r_scbond_it	2.252
r_angle_refined_deg	1.606
r_mcangle_it	1.267
r_mcbond_it	0.836
r_nbtor_refined	0.309
r_symmetry_vdw_refined	0.218
r_nbd_refined	0.203
r_symmetry_hbond_refined	0.173
r_xyhbond_nbd_refined	0.146
r_chiral_restr	0.113
r_bond_refined_d	0.017
r_gen_planes_refined	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1654
Nucleic Acid Atoms
Solvent Atoms	117
Heterogen Atoms	6

Software

Software
Software Name	Purpose
d*TREK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CrystalClear	data collection
CrystalClear	data reduction
CrystalClear	data scaling

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.