8C58

CpG specific M.MpeI methyltransferase crystallized in the presence of 5-hydroxycytosine and 5-methylcytosine containing dsDNA

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	PETRA III, EMBL c/o DESY BEAMLINE P13 (MX1)
Synchrotron site	PETRA III, EMBL c/o DESY
Beamline	P13 (MX1)
Temperature [K]	100
Detector technology	PIXEL
Collection date	2013-06-28
Detector	DECTRIS PILATUS 6M-F
Wavelength(s)	1.2782
Spacegroup name	P 41 21 2
Unit cell lengths	84.521, 84.521, 172.991
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	19.950 - 1.850
R-factor	0.16626
Rwork	0.165
R-free	0.19450
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4dkj
RMSD bond length	0.006
RMSD bond angle	1.158
Data reduction software	XDS
Data scaling software	XDS
Phasing software	REFMAC
Refinement software	REFMAC (5.8.0258)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000	1.960
High resolution limit [Å]	1.850	1.850
Rmeas	0.048	1.067
Number of reflections	54230	8502
<I/σ(I)>	21.76	1.97
Completeness [%]	99.5	99
Redundancy	5.67	5.66
CC(1/2)	0.999	0.737

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	5.6	294	10% PEG 3350, 150 mM NaCl, 50 mM sodium citrate (final pH, 5.6). For cryoprotection glycerol was added to 25% v/v