1M18

LIGAND BINDING ALTERS THE STRUCTURE AND DYNAMICS OF NUCLEOSOMAL DNA

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	2000-06-28
Detector	ADSC QUANTUM 4
Wavelength(s)	1.1
Spacegroup name	P 21 21 21
Unit cell lengths	106.839, 109.628, 183.172
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	60.000 - 2.450
Rwork	0.222
R-free	0.25800 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1aoi
RMSD bond length	0.008 *
RMSD bond angle	1.120 *
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	CNS

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	60.000	2.490
High resolution limit [Å]	2.450	2.450
Rmerge	0.107	0.247
Number of reflections	79809 *
<I/σ(I)>	4.2	2.3
Completeness [%]	98.4 *	94.2
Redundancy	15.7

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion *	6	292	used macroseeding *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	reservoir		40-45 (mM)
2	1	reservoir		35-38.8 (mM)
3	1	drop	potassium cacodylate	20 (mM)	pH6.0
4	1	drop	protein	4 (mg/ml)