Experiment: 2HAF

Crystal structure of a putative translation repressor from Vibrio cholerae

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	293	0.1 M HEPES, 1.4 M tri-sodium citrate, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.57	52.13

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.36	α = 90
b = 59.36	β = 90
c = 236.74	γ = 120

Symmetry
Space Group	P 61 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	2006-06-02	M	SINGLE WAVELENGTH
2	1	x-ray	100	CCD	ADSC QUANTUM 315	mirrors	2006-06-02	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.979	NSLS	X25
2	SYNCHROTRON	NSLS BEAMLINE X29A	1.1	NSLS	X29A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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
1,2	2.88	50	98.8	0.09	16.8	6.1	6206	6206

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.88	2.98	98.5		0.214		5.7	6291

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	MAD	THROUGHOUT	2.88	34.83	5995	5995	952	96.6	0.241	0.241	0.2379	0.288	0.288	RANDOM	51.2

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]
-2.64	9.8		-2.64		5.28

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	25.4
c_angle_deg	1.4
c_improper_angle_d	0.84
c_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1424
Nucleic Acid Atoms
Solvent Atoms	21
Heterogen Atoms

Software

Software
Software Name	Purpose
CNS	refinement
CBASS	data collection
HKL-2000	data scaling
SOLVE	phasing
SHARP	phasing