4FF3 | pdb_00004ff3

N4 mini-vRNAP transcription initiation complex, 3 min after soaking GTP, ATP and Mn

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	295	0.1 M TRIS-HCL, 0.21 M DIBASIC AMMONIUM CITRATE, 0.09 M AMMONIUM DIHYDROGEN MONOPHOSPHATE, 25 % (DROP) 15% (RESERVOIR) PEG 3350 , pH 8, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
2.36	47.77

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 82.019	α = 90
b = 111.652	β = 90
c = 276.145	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	ADSC QUANTUM 270		2010-07-07	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F1	0.918	CHESS	F1

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	1.997	42.382	89					2	2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.997	42.382	1.34	582255	153225	1999	88.89	0.1825	0.1821	0.1753	0.2112	0.2058

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]
2.0207			-3.6623		1.6416

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	15.215
f_angle_d	0.863
f_chiral_restr	0.057
f_bond_d	0.004
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	16908
Nucleic Acid Atoms	826
Solvent Atoms	1245
Heterogen Atoms	67

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling