3QMB

Structural Basis of Selective Binding of Nonmethylated CpG Islands by the CXXC Domain of CFP1

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 19-ID
Synchrotron site	APS
Beamline	19-ID
Temperature [K]	100
Detector technology	CCD
Collection date	2010-06-16
Detector	ADSC QUANTUM 315
Wavelength(s)	0.97904
Spacegroup name	C 2 2 21
Unit cell lengths	37.375, 71.965, 115.600
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	30.550 - 2.060
R-factor	0.2211
Rwork	0.220
R-free	0.23490
Structure solution method	SAD
RMSD bond length	0.010
RMSD bond angle	1.709
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	SHARP
Refinement software	REFMAC (refmac_5.5.0109)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	50.000	50.000	2.120
High resolution limit [Å]	2.050	4.420	2.050
Rmerge	0.058	0.033	0.506
Number of reflections	10064
<I/σ(I)>	13.9
Completeness [%]	99.9	99.2	99.6
Redundancy	8.5	7.9	8.2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7.5	291	0.1M HEPES pH 7.5, 0.2M CaCl2, 28% PEG400, VAPOR DIFFUSION, HANGING DROP, temperature 291K