1UNA

UNASSEMBLED VIRUS COAT PROTEIN DIMER, BACTERIOPHAGE RNA-BINDING DIMER

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1MS2	MS2 COAT PROTEIN DIMER (1MS2)

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.2	46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.3	α = 90
b = 60.5	β = 90
c = 67.1	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	AREA DETECTOR	XUONG-HAMLIN MULTIWIRE		1993-12-03	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH2R

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	2.8	55	94	0.066	12.9	3		10793

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)
	2.8	3	81		0.11	5	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MOL. REPLACEMENT	MS2 COAT PROTEIN DIMER (1MS2)	2.8	6	2	5372		50	0.204	0.284	17.13

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_staggered_tor	22.5
p_transverse_tor	19.1
p_scangle_it	10.131
p_mcangle_it	9.649
p_scbond_it	7.777
p_mcbond_it	6.958
p_planar_tor	1.5
p_multtor_nbd	0.211
p_singtor_nbd	0.192
p_xyhbond_nbd	0.166
p_angle_d	0.031
p_planar_d	0.013
p_bond_d	0.006
p_plane_restr	0.006
p_angle_deg
p_hb_or_metal_coord
p_chiral_restr
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1928
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
X-PLOR	model building
PROLSQ	refinement
X-PLOR	refinement
XENGEN	data reduction
NIELSEN	data reduction
XUONG)	data reduction
X-PLOR	phasing