2FSD

A Common Fold for the Receptor Binding Domains of Lactococcal Phages? The Crystal Structure of the Head Domain of Phage bIL170

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	5.5	291	nanodrop setting (300 nL), pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
2.18	43.65

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.65	α = 90
b = 69.65	β = 90
c = 95.356	γ = 120

Symmetry
Space Group	P 31 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	ADSC QUANTUM 4		2005-09-20	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-3	0.93100	ESRF	ID14-3

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	2.3	32.7	99.7			12327	12327

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.3	2.42	99.7

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	SAD	THROUGHOUT	2.3	23.8	11702	11702	606	99.72	0.24305	0.24305	0.24176	0.26801	RANDOM	20.229

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]
-0.06	-0.03		-0.06		0.08

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.899
r_dihedral_angle_3_deg	14.882
r_dihedral_angle_4_deg	13.955
r_dihedral_angle_1_deg	6.531
r_scangle_it	1.395
r_angle_refined_deg	1.218
r_scbond_it	0.957
r_angle_other_deg	0.779
r_mcangle_it	0.777
r_mcbond_it	0.651
r_symmetry_vdw_other	0.258
r_xyhbond_nbd_refined	0.199
r_nbd_refined	0.189
r_symmetry_vdw_refined	0.187
r_nbd_other	0.181
r_nbtor_refined	0.172
r_symmetry_hbond_refined	0.116
r_mcbond_other	0.089
r_nbtor_other	0.086
r_chiral_restr	0.071
r_bond_refined_d	0.011
r_gen_planes_refined	0.004
r_bond_other_d	0.001
r_gen_planes_other	0.001
r_xyhbond_nbd_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1610
Nucleic Acid Atoms
Solvent Atoms	98
Heterogen Atoms

Software

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