1OHB

Acetylglutamate kinase from Escherichia coli complexed with ADP and sulphate

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	EMBL/DESY, HAMBURG BEAMLINE X11
Synchrotron site	EMBL/DESY, HAMBURG
Beamline	X11
Temperature [K]	100
Detector technology	CCD
Collection date	1999-11-01
Detector	MARRESEARCH
Spacegroup name	C 2 2 21
Unit cell lengths	59.242, 71.449, 107.230
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	41.890 - 1.900
R-factor	0.1948
Rwork	0.195
R-free	0.22110
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1gs5
RMSD bond length	0.005
RMSD bond angle	1.200
Data reduction software	MOSFLM
Data scaling software	SCALA
Refinement software	CNS (1.0)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	41.890	2.000
High resolution limit [Å]	1.900	1.900
Rmerge	0.075	0.357
Total number of observations	100167 *
Number of reflections	18284
<I/σ(I)>	9.7	2.1
Completeness [%]	99.9	100
Redundancy	5.5	5.5

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion *	4.6		27-29% POLYETHYLENE GLYCOL MONOMETHYL ETHER 2K, SODIUM ACETATE 0.1M PH 4.6 AMMONIUM SULPHATE 0.15-0.3 M

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	reservoir	PEG2000	27-29 (%(w/v))
2	1	reservoir	sodium acetate	0.1 (M)	pH4.6
3	1	reservoir	ammonium citrate	0.15-0.3 (M)
4	1	drop	protein	10 (mg/ml)