1SH0

Crystal Structure of Norwalk Virus Polymerase (Triclinic)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	295	PEG 8000, ammonium sulfate, Tris-Cl, glycerol, 2-mercaptoethanol, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.59	52.43

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.144	α = 104.36
b = 59.914	β = 92.49
c = 100.095	γ = 111.91

Symmetry
Space Group	P 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	IMAGE PLATE	MARRESEARCH	mirrors	2003-10-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RU300	1.5418

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (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	2.17	40	95.1	0.042	0.042	24.4	4.1	57284	57284		-3	25.2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.17	2.25	86.9		0.147	0.147	3.5	1.4	5246

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 1KHV	2.17	35.58	54384	54384	2892	95.1	0.19716	0.19412	0.25552	RANDOM	21.047

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]
0.02	0.71	-0.94	-0.08	-1.65	-0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_1_deg	5.262
r_scangle_it	4.182
r_scbond_it	2.998
r_mcangle_it	1.925
r_mcbond_it	1.179
r_angle_refined_deg	1.022
r_nbd_refined	0.192
r_symmetry_vdw_refined	0.129
r_symmetry_hbond_refined	0.125
r_xyhbond_nbd_refined	0.12
r_chiral_restr	0.073
r_bond_refined_d	0.008
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7887
Nucleic Acid Atoms
Solvent Atoms	434
Heterogen Atoms

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
BEAST	phasing