1KF1

Structure and Packing of Human Telomeric DNA

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF BEAMLINE ID14-4
Synchrotron site	ESRF
Beamline	ID14-4
Temperature [K]	103
Detector technology	CCD
Collection date	2001-03-31
Detector	ADSC QUANTUM 4
Wavelength(s)	0.901
Spacegroup name	P 6
Unit cell lengths	56.682, 56.682, 42.106
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	10.000 - 2.100
R-factor	0.226 *
Rwork	0.229
R-free	0.26200 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1k8p
RMSD bond length	0.005
RMSD bond angle	0.015
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	SHELXL-97

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000	2.170
High resolution limit [Å]	2.100	2.100
Rmerge	0.052	0.117
Total number of observations	50951 *
Number of reflections	4595 *
<I/σ(I)>	50	15
Completeness [%]	98.0 *	97.8
Redundancy	4	4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	6.5	285	PEG 400, potassium iodide, potassium chloride, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 285K

Crystallization Reagents

ID	crystal ID	solution ID	reagent name	concentration	details
1	1	1	PEG 400
2	1	1	KI
3	1	1	KCl