2J7N

Structure of the RNAi polymerase from Neurospora crassa

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1				100 MM TRISHCL PH 7.5, 150 MM NACL, 8% PEG 6000, AND 5 MM MGCL2.

Crystal Properties
Matthews coefficient	Solvent content
3.01	58.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 101.021	α = 90
b = 122.553	β = 108.9
c = 114.701	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray		CCD	MARRESEARCH			M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14		ESRF	BM14

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	2.3	20	97.9	0.1	18.2	15.3		114252

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	2.3	2.38	100		1.3

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	MAD	THROUGHOUT	2.3	19.98	108414	5748	97.7	0.219	0.217	0.264	RANDOM	51.92

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]
0.03		-0.09	0.55		-0.63

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	32.665
r_dihedral_angle_4_deg	20.136
r_dihedral_angle_3_deg	19.02
r_dihedral_angle_1_deg	9.063
r_scangle_it	2.085
r_angle_refined_deg	1.524
r_scbond_it	1.34
r_mcangle_it	0.966
r_mcbond_it	0.568
r_symmetry_hbond_refined	0.393
r_nbtor_refined	0.328
r_nbd_refined	0.271
r_symmetry_vdw_refined	0.251
r_xyhbond_nbd_refined	0.23
r_chiral_restr	0.109
r_bond_refined_d	0.013
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_refined
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_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	15018
Nucleic Acid Atoms
Solvent Atoms	920
Heterogen Atoms	7

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SnB	phasing
SOLVE	phasing
REFMAC	refinement