3AOI

RNA polymerase-Gfh1 complex (Crystal type 2)

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.4	293	50mM Hepes-NaOH buffer (pH 6.4), 5.5% PEG 8000, 300mM LiCl, 10mM MgCl2, 1% dimethyl sulfoxide, 5mM taurine, VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
3.49	64.78

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 189.23	α = 90
b = 264.51	β = 116.68
c = 193.93	γ = 90

Symmetry
Space Group	P 1 21 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	PIXEL	PSI PILATUS 6M		2008-09-29	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	0.9801	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	4.3	50	97.9				112834

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	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 ENTRIES 2O5I, 3DXJ, 2F23, and 3AOH	4.3	47.57	112830	3392	97.6	0.317	0.317	0.338	RANDOM	160.4

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]
20.46		32.91	-32.81		12.35

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	41.47
c_mcangle_it	38.87
c_scbond_it	28.96
c_mcbond_it	25.07
c_dihedral_angle_d	24.6
c_angle_deg	1.7
c_improper_angle_d	1.43
c_bond_d	0.01
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	72811
Nucleic Acid Atoms	829
Solvent Atoms
Heterogen Atoms	6

Software

Software
Software Name	Purpose
PHASER	phasing
CNS	refinement
XDS	data reduction
XDS	data scaling