2ZL7

Atomic resolution structural characterization of recognition of histo-blood group antigens by Norwalk virus

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.8	293	50mM Sodium acetate buffer(pH 4.8), 0.2M Ammonium Nitrate, 20% PEG 3350, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.6	52.61

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 83.069	α = 90
b = 83.069	β = 90
c = 164.316	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 315		2007-08-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID	0.97942	APS	19-ID

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	1.35	43.6	99.2	0.061	11.2	4.66	144576	143419	2	2

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)
	1.35	1.4	99.1		0.419	2.6	3.83

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1ihm	1.35	30.07	133265	131266	6957	98.5	0.17162	0.17075	0.18804	RANDOM	11.818

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]
-0.18	-0.09		-0.18		0.27

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.506
r_dihedral_angle_4_deg	13.638
r_dihedral_angle_3_deg	10.38
r_dihedral_angle_1_deg	8.841
r_scangle_it	2.365
r_scbond_it	1.725
r_angle_refined_deg	1.421
r_mcangle_it	1.329
r_angle_other_deg	0.858
r_mcbond_it	0.788
r_metal_ion_refined	0.432
r_symmetry_vdw_other	0.276
r_symmetry_vdw_refined	0.226
r_nbd_refined	0.218
r_nbd_other	0.199
r_nbtor_refined	0.183
r_mcbond_other	0.173
r_xyhbond_nbd_refined	0.143
r_symmetry_hbond_refined	0.114
r_nbtor_other	0.087
r_chiral_restr	0.08
r_bond_refined_d	0.01
r_gen_planes_refined	0.006
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4323
Nucleic Acid Atoms
Solvent Atoms	736
Heterogen Atoms	47

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-3000	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing