8U9X

STRUCTURAL BASIS OF TRANSCRIPTION: RNA POLYMERASE II SUBSTRATE BINDING AND METAL COORDINATION AT 3.0 A OF T834P MUTANT USING A FREE-ELECTRON LASER

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	FREE ELECTRON LASER
Source details	SLAC LCLS BEAMLINE XPP
Synchrotron site	SLAC LCLS
Beamline	XPP
Temperature [K]	100
Detector technology	PIXEL
Collection date	2017-02-27
Detector	SLAC ePix10k 2M
Wavelength(s)	1.30186
Spacegroup name	C 2 2 21
Unit cell lengths	220.167, 392.604, 280.921
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	18.000 - 3.050
R-factor	0.2838
Rwork	0.283
R-free	0.30730
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.011
RMSD bond angle	1.554
Data reduction software	cctbx.xfel
Data scaling software	SCALA
Phasing software	MOLREP
Refinement software	PHENIX ((1.19.2_4158: ???))

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	24.960	3.050
High resolution limit [Å]	3.000	3.000
Rmerge	0.670	0.480
Number of reflections	239284	11337
<I/σ(I)>	4.91
Completeness [%]	99.2
Redundancy	8.82
CC(1/2)	0.750	0.200

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION	7.5	289	10-15 % tacsimate 100mM Hepes