1MU4

CRYSTAL STRUCTURE AT 1.8 ANGSTROMS OF THE BACILLUS SUBTILIS CATABOLITE REPRESSION HISTIDINE CONTAINING PROTEIN (CRH)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF
Synchrotron site	ESRF
Temperature [K]	297
Detector technology	IMAGE PLATE
Collection date	2001-05-08
Detector	MARRESEARCH
Spacegroup name	P 43 2 2
Unit cell lengths	68.850, 68.850, 119.860
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	30.000 * - 1.800
R-factor	0.179
Rwork	0.179
R-free	0.19900 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1mo1
RMSD bond length	0.008 *
RMSD bond angle	1.310 *
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	AMoRE
Refinement software	CNS (1.0)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	30.000 *	1.860
High resolution limit [Å]	1.800	1.800
Rmerge	0.055	0.318
Number of reflections	27478 *
<I/σ(I)>	8.5	1.9
Completeness [%]	99.6	99.6 *
Redundancy	4.1	3.4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	6.5	18 *	ammonium sulfate, peg 1000,, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297K

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	6 (mg/ml)
2	1	reservoir	ammonium sulfate	2 (M)
3	1	reservoir	PEG1000	2 (%(v/v))
4	1	reservoir		20 (mM)	pH6.5
5	1	drop		20 (mM)