2NVT

RNA Polymerase II Elongation Complex in 150 mM Mg+2 with GMPCPP

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	200mM NH4OAc, 150mM Mg(OAc)2, 50mM Hepes, pH 7.0, 5% PEG6000, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
3.87	68.25

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 170.872	α = 90
b = 222.824	β = 102.39
c = 195.802	γ = 90

Symmetry
Space Group	C 1 2 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	CCD	ADSC QUANTUM 315		2006-07-06	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.98	SSRL	BL11-1

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	3.36	40	97.1	0.125	8	3		95301		-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)
	3.36	3.5	94.8		0.541	1.4	2.6

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	1SFO	3.36	40	93705	4911		0.23223	0.22957	0.28289	RANDOM	124.679

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]
2.28		-11.94	-5.27		-2.13

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	40.177
r_dihedral_angle_3_deg	23.33
r_dihedral_angle_4_deg	17.865
r_dihedral_angle_1_deg	7.986
r_scangle_it	2.23
r_angle_refined_deg	1.822
r_scbond_it	1.307
r_mcangle_it	1.155
r_mcbond_it	0.647
r_symmetry_hbond_refined	0.45
r_nbtor_refined	0.32
r_symmetry_vdw_refined	0.281
r_nbd_refined	0.271
r_xyhbond_nbd_refined	0.2
r_chiral_restr	0.118
r_metal_ion_refined	0.076
r_bond_refined_d	0.016
r_gen_planes_refined	0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	28345
Nucleic Acid Atoms	781
Solvent Atoms
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction