2CS7

1.2 A Crystal structure of the S. pneumoniae PhtA histidine triad domain a novel zinc binding fold

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	290	1.6M Ammonium Sulphate, 100mM Hepes, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
1.8	33

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.182	α = 90
b = 35.895	β = 90.01
c = 72.541	γ = 90

Symmetry
Space Group	C 1 2 1

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	MARRESEARCH	Mirrors	2003-08-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1.0	ELETTRA	5.2R

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	72.5	93.9				49793	2	2

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	1.2	72.55	2	44267	2392	93.73	0.11341	0.11341	0.11224	0.13498	RANDOM	8.828

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]
-0.04		0.04	-0.01		0.06

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	29.113
r_dihedral_angle_4_deg	13.333
r_dihedral_angle_3_deg	12.329
r_dihedral_angle_1_deg	5.895
r_scangle_it	3.906
r_angle_other_deg	3.654
r_scbond_it	3.285
r_mcangle_it	2.29
r_mcbond_it	1.949
r_angle_refined_deg	1.93
r_mcbond_other	0.9
r_symmetry_vdw_other	0.329
r_symmetry_vdw_refined	0.253
r_symmetry_hbond_refined	0.244
r_chiral_restr	0.235
r_nbd_refined	0.218
r_xyhbond_nbd_refined	0.171
r_nbd_other	0.163
r_nbtor_other	0.128
r_metal_ion_refined	0.042
r_bond_refined_d	0.016
r_gen_planes_refined	0.011
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1295
Nucleic Acid Atoms
Solvent Atoms	195
Heterogen Atoms	3

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
CCP4	data scaling
SHARP	phasing