1A8V

STRUCTURE OF THE RNA-BINDING DOMAIN OF THE RHO TRANSCRIPTION TERMINATOR

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5		pH 8.5

Crystal Properties
Matthews coefficient	Solvent content
2.1	45

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 30.42	α = 99.06
b = 36.16	β = 102.64
c = 54.25	γ = 96.43

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	293	IMAGE PLATE	RIGAKU RAXIS IV	MIRRORS	1997-09-26	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU RUH3R

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	20	98.9	0.068	18.9	4.5		14432

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	2.07	95.8		0.169	7	2.5

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIR	2	20	14432	1154	98.8	0.193	0.261	FREE R

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_angle_deg	1.5
p_bond_d	0.018
p_angle_d
p_planar_d
p_hb_or_metal_coord
p_mcbond_it
p_mcangle_it
p_scbond_it
p_scangle_it
p_plane_restr
p_chiral_restr
p_singtor_nbd
p_multtor_nbd
p_xhyhbond_nbd
p_xyhbond_nbd
p_planar_tor
p_staggered_tor
p_orthonormal_tor
p_transverse_tor
p_special_tor

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1812
Nucleic Acid Atoms
Solvent Atoms	88
Heterogen Atoms	2

Software

Software
Software Name	Purpose
CCP4	model building
REFMAC	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	phasing