3MLQ

Crystal structure of the Thermus thermophilus transcription-repair coupling factor RNA polymerase interacting domain with the Thermus aquaticus RNA polymerase beta1 domain

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	295	0.1 M Tris-HCl, 1.6 M di-potassium ammonium phosphate, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.99	58.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.585	α = 90
b = 106.585	β = 90
c = 122.301	γ = 90

Symmetry
Space Group	P 43

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	173	CCD	ADSC QUANTUM 315		2008-07-10	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 24-ID-E	0.97918	APS	24-ID-E

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	2.9	30	91.3	0.088	14.1	2.2	27972	25538			52

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)
	2.9	3	92.4		0.501	1.8	2.1

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	Thermus aquaticus RNA polymerase beta-subunit beta1 domain	2.91	29.56	25538	1170	88.81	0.22792	0.22691	0.24983	RANDOM	52.019

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]
-14.19			-14.19		28.39

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.944
r_dihedral_angle_3_deg	20.464
r_dihedral_angle_4_deg	18.885
r_dihedral_angle_1_deg	9.813
r_angle_refined_deg	1.236
r_angle_other_deg	0.906
r_scangle_it	0.727
r_mcangle_it	0.485
r_scbond_it	0.429
r_mcbond_it	0.267

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.944
r_dihedral_angle_3_deg	20.464
r_dihedral_angle_4_deg	18.885
r_dihedral_angle_1_deg	9.813
r_angle_refined_deg	1.236
r_angle_other_deg	0.906
r_scangle_it	0.727
r_mcangle_it	0.485
r_scbond_it	0.429
r_mcbond_it	0.267
r_chiral_restr	0.096
r_mcbond_other	0.042
r_gen_planes_refined	0.009
r_bond_refined_d	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6858
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	5

Software

Software
Software Name	Purpose
REFMAC	refinement
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction
HKL-2000	data scaling
CNS	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.