2QSR

Crystal structure of C-terminal domain of transcription-repair coupling factor

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	298	1.6 M Sodium citrate pH 6.5, temperature 298K, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
3.09	60.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 84.891	α = 90
b = 84.891	β = 90
c = 122.021	γ = 120

Symmetry
Space Group	P 61 2 2

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	MAR CCD 165 mm		2007-02-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 31-ID	0.97930	APS	31-ID

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	3.1	50	100	0.127	4.6	19.4	5156	5156

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	3.1	3.21	100		0.817	0.707	3.24	19.1	493

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION		THROUGHOUT	3.1	42.45	5117	5117	234	99.86	0.187	0.187	0.184	0.243	RANDOM	49.754

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]
-0.45	-0.22		-0.45		0.67

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.16
r_dihedral_angle_3_deg	20.022
r_dihedral_angle_4_deg	16.06
r_scangle_it	10.02
r_mcangle_it	7.773
r_scbond_it	6.656
r_dihedral_angle_1_deg	5.624
r_mcbond_it	5.223
r_angle_refined_deg	1.116
r_nbtor_refined	0.351

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.16
r_dihedral_angle_3_deg	20.022
r_dihedral_angle_4_deg	16.06
r_scangle_it	10.02
r_mcangle_it	7.773
r_scbond_it	6.656
r_dihedral_angle_1_deg	5.624
r_mcbond_it	5.223
r_angle_refined_deg	1.116
r_nbtor_refined	0.351
r_symmetry_hbond_refined	0.351
r_symmetry_vdw_refined	0.345
r_nbd_refined	0.275
r_xyhbond_nbd_refined	0.168
r_chiral_restr	0.08
r_bond_refined_d	0.008
r_gen_planes_refined	0.003

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1329
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345dtb	data collection
HKL-2000	data reduction
SHELXD	phasing
SHELXE	model building
RESOLVE	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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.