3D9O

Snapshots of the RNA processing factor SCAF8 bound to different phosphorylated forms of the Carboxy-Terminal Domain of RNA-Polymerase II

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3D9J	Pdb entry 3D9J

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		298	1.2M Li2SO4, 1.6M (NH4)2SO4, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.48	50.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.444	α = 90
b = 57.444	β = 90
c = 107.675	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	100	PIXEL	PSI PILATUS 6M		2007-09-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X06SA	0.9794	SLS	X06SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Sym 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	50	98.1	0.06	17.4	3.9		23561			36.3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2	2.2	95.8		0.38	4.3	3.8	11086

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	Pdb entry 3D9J	2	40.76	22384	1177	99.92	0.20613	0.2044	0.2	0.23994	0.23	RANDOM	33.719

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]
0.43			0.43		-0.86

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.409
r_dihedral_angle_4_deg	16.218
r_dihedral_angle_3_deg	12.898
r_dihedral_angle_1_deg	4.563
r_scangle_it	2.333
r_scbond_it	1.585
r_angle_refined_deg	1.07
r_mcangle_it	0.932
r_mcbond_it	0.771
r_nbtor_refined	0.299

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2315
Nucleic Acid Atoms
Solvent Atoms	127
Heterogen Atoms	32

Software

Software
Software Name	Purpose
REFMAC	refinement
MAR345	data collection
XDS	data reduction
XSCALE	data scaling
REFMAC	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 R01GM157729.