3QRP

Structure of Thermus Thermophilus Cse3 bound to an RNA representing a product mimic complex

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	295	15% PEG 8000, 100mM KCl, 5mM MgSO4, 1mM spermidine, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
1.91	35.63

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 37.057	α = 90
b = 72.405	β = 90
c = 100.225	γ = 90

Symmetry
Space Group	P 21 21 21

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	MARMOSAIC 325 mm CCD		2010-04-27	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-2	0.97946	SSRL	BL9-2

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	2.352	34.752	95.52			11772	11249	2	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.352	2.43	75.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.352	34.752	11249	534	95.52	0.1774	0.1753	0.2175	RANDOM	24.391

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]
-1.03			-0.47		1.5

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.44
r_dihedral_angle_4_deg	18.09
r_dihedral_angle_3_deg	17.635
r_dihedral_angle_1_deg	8.273
r_scangle_it	4.593
r_scbond_it	3.744
r_mcangle_it	2.228
r_mcbond_it	1.681
r_angle_refined_deg	1.518
r_nbtor_refined	0.31

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.44
r_dihedral_angle_4_deg	18.09
r_dihedral_angle_3_deg	17.635
r_dihedral_angle_1_deg	8.273
r_scangle_it	4.593
r_scbond_it	3.744
r_mcangle_it	2.228
r_mcbond_it	1.681
r_angle_refined_deg	1.518
r_nbtor_refined	0.31
r_nbd_refined	0.227
r_symmetry_vdw_refined	0.211
r_symmetry_hbond_refined	0.207
r_xyhbond_nbd_refined	0.18
r_chiral_restr	0.106
r_gen_planes_refined	0.016
r_bond_refined_d	0.013

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1709
Nucleic Acid Atoms	345
Solvent Atoms	152
Heterogen Atoms	5

Software

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

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 R01GM157729.