Experiment: 3ICE

Rho transcription termination factor bound to RNA and ADP-BeF3

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1PVO	1PVO AND UNPUBLISHED STRUCTURE

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.9	291	2.5% MPD, 50mM HEPES, 5mM Tris-HCL, 160mM sodium chloride, 1.25mM magnesium chloride, 5mM spermidine-HCL, 0.5mM TCEP, 1.25mM ADP-BeF3,, pH 7.9, MICROBATCH, temperature 291K

Crystal Properties
Matthews coefficient	Solvent content
3.34	63.22

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.23	α = 60.48
b = 127.03	β = 90.26
c = 127.17	γ = 89.77

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	100	CCD	ADSC QUANTUM 315		2007-10-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1		ALS	8.3.1

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	41.9	94.6	0.079	15.5	3.8		87864		-3	49.7

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	2.8	2.9	66.6		0.342	3.8	3.6

Refinement

Statistics
Diffraction ID	Structure Solution 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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1PVO AND UNPUBLISHED STRUCTURE	2.8	41.88	87859	87859	4440	94.7	0.271	0.27	0.2652	0.295	0.2915	70.48

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]
-14.943	0.718	-0.036	5.974	1.368	8.087

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	19.547
f_angle_d	0.97
f_chiral_restr	0.065
f_bond_d	0.013
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	19120
Nucleic Acid Atoms	121
Solvent Atoms	84
Heterogen Atoms	212

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHASER	phasing