1MSC

CRYSTAL STRUCTURE OF MS2 COAT PROTEIN DIMER

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				COMPND MOLECULE: MS2 UNASSEMBLED COAT PROTEIN DIMER. THIS BACTERIOPHAGE COAT PROTEIN WAS CRYSTALLIZED AS AN UNASSEMBLED DIMER; IT DID NOT FORM VIRAL CAPSIDS.

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.02

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 76.2	α = 90
b = 55.7	β = 90
c = 28.4	γ = 90

Symmetry
Space Group	P 21 21 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray					1993-12-07	M

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	2.03	55	90	0.031		3.2		7447

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	Mean Isotropic B
X-RAY DIFFRACTION		2	8	3	6668		90	0.2			34.47

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]

RMS Deviations
Key	Refinement Restraint Deviation
p_orthonormal_tor	42.1
p_staggered_tor	24.1
p_planar_tor	3.8
p_multtor_nbd	0.292
p_xhyhbond_nbd	0.287
p_singtor_nbd	0.239
p_angle_d	0.066
p_planar_d	0.051
p_bond_d	0.021
p_plane_restr	0.018

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	962
Nucleic Acid Atoms
Solvent Atoms	111
Heterogen Atoms

Software

Software
Software Name	Purpose
PROLSQ	refinement
XENGEN	data reduction
NIELSEN	data reduction
XUONG)	data reduction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.