1L6B

CRYSTAL STRUCTURE ANALYSIS OF THE ALL DNA HOLLIDAY JUNCTION STRUCTURE OF CCGGTACM5CGG

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ALS BEAMLINE 5.0.2
Synchrotron site	ALS
Beamline	5.0.2
Temperature [K]	100
Detector technology	CCD
Collection date	2001-01-22
Detector	ADSC QUANTUM 4
Wavelength(s)	1.150
Spacegroup name	C 1 2 1
Unit cell lengths	65.503, 24.704, 36.975
Unit cell angles	90.00, 110.01, 90.00

Refinement procedure

Resolution	20.000 * - 1.500
R-factor	0.223
Rwork	0.218
R-free	0.26400
Structure solution method	MOLECULAR REPLACEMENT
RMSD bond length	0.012
RMSD bond angle	2.080
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	X-PLOR (CUSTOM SCRIPT - REAL SPACE TRANSLATION/ROTATION/RIGID BODY/RIGID PART SEARCH)
Refinement software	REFMAC (5.0)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000 *	1.550
High resolution limit [Å]	1.500	1.500
Rmerge	0.048 *	0.435 *
Total number of observations	18200 *
Number of reflections	7988
Completeness [%]	87.3	39.3

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	7	298	Sodium Cacodylate, CaCl2, Spermine tetrahydrochloride, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystallization Reagents

ID	crystal ID	solution ID	reagent name	concentration	details
1	1	1	Sodium Cacodylate
2	1	1	CaCl2
3	1	1	Spermine tetrahydrochloride
4	1	2	CaCl2

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	DNA	0.5 (mM)
2	1	drop	sodium cacodylate	25 (mM)	pH7.
3	1	drop		10 (mM)
4	1	drop	spermine 4HCl	2 (mM)
5	1	reservoir	MPD	20 (%(v/v))