Experiment: 4DVC

Structural and functional studies of TcpG, the Vibrio cholerae DsbA disulfide-forming protein required for pilus and cholera toxin production

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	hanging drop	6.4	277.15	PEG 4000, MES, pH 6.4, hanging drop, temperature 277.15K

Crystal Properties
Matthews coefficient	Solvent content
2.17	43.36

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.654	α = 90
b = 89.52	β = 90
c = 64.263	γ = 90

Symmetry
Space Group	C 2 2 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 315r		2009-07-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	AUSTRALIAN SYNCHROTRON BEAMLINE MX2	0.9536	Australian Synchrotron	MX2

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	1.2	64.2	99.7	0.103	18	14		56644			10

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	1.2		97.4		0.103	3.1	12.9

Refinement

Statistics
Diffraction ID	Structure Solution 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	1.2	32.132	1.34	56644	2000	99.74	0.1198	0.1191	0.1201	0.1392	0.1396	16.3622

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]
2.966			-1.3627		-1.6033

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.753
f_angle_d	1.205
f_chiral_restr	0.071
f_bond_d	0.007
f_plane_restr	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1458
Nucleic Acid Atoms
Solvent Atoms	284
Heterogen Atoms	13

Software

Software
Software Name	Purpose
XSCALE	data scaling
MOLREP	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection