1CY6

COMPLEX OF E.COLI DNA TOPOISOMERASE I WITH 3' THYMIDINE MONOPHOSPHATE

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 5ID-B
Synchrotron site	APS
Beamline	5ID-B
Temperature [K]	100
Detector technology	CCD
Collection date	1998-02-01
Detector	MARRESEARCH
Spacegroup name	P 21 21 21
Unit cell lengths	64.630, 80.720, 143.530
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	19.990 - 2.500
R-factor	0.244
Rwork	0.244
R-free	0.30900
RMSD bond length	0.008
RMSD bond angle	22.400 *
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	X-PLOR
Refinement software	X-PLOR

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	999.000	2.590
High resolution limit [Å]	2.500	2.500
Rmerge	0.067	0.296
Total number of observations	256045 *
Number of reflections	26758
Completeness [%]	87.5	80.9

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	5	4 *	and 14 degrees centigrade *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	2.5-6 (mg/ml)
2	1	drop	nucleotide	1.45-20 (mM)
3	1	reservoir	ammonium sulfate	2.2-2.3 (M)