8TIY

Isoreticular, interpenetrating co-crystal of Replication Initiator Protein REPE54 and symmetrical expanded duplex (31mer) containing the cognate REPE54 sequence and an additional G-C rich sequence with 1 sticky bases and 3' terminal phosphates and crosslinked with EDC.

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ALS BEAMLINE 4.2.2
Synchrotron site	ALS
Beamline	4.2.2
Temperature [K]	100
Detector technology	CMOS
Collection date	2021-11-12
Detector	RDI CMOS_8M
Wavelength(s)	1.0
Spacegroup name	I 2 2 2
Unit cell lengths	73.644, 128.328, 137.221
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	36.820 - 3.110
R-factor	0.208
Rwork	0.205
R-free	0.23120
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.013
RMSD bond angle	1.350
Data reduction software	XDS (Jan 31, 2020)
Data scaling software	XSCALE (Jan 31, 2020)
Phasing software	PHASER (2.8.2)
Refinement software	PHENIX (1.18.2_3874)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	36.820	3.221
High resolution limit [Å]	3.110	3.110
Rmerge	0.073	0.914
Rmeas	0.079	0.983
Rpim	0.030	0.360
Number of reflections	11893	1168
<I/σ(I)>	17.8	2.4
Completeness [%]	96.5	96.76
Redundancy	7.2	7.4
CC(1/2)	0.999	0.938

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	8	298	350 mM MgCl2, 25% PEG 400, and 100 mM Tris HCl