2VB9

beta-ketoacyl-ACP synthase I (KAS) from E. coli, apo structure

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SLS BEAMLINE X06SA
Synchrotron site	SLS
Beamline	X06SA
Temperature [K]	100
Detector technology	CCD
Collection date	2004-06-18
Detector	MARRESEARCH
Spacegroup name	P 21 21 21
Unit cell lengths	58.914, 138.355, 211.914
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	115.470 - 1.500
R-factor	0.199
Rwork	0.197
R-free	0.23800
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	1ek4
RMSD bond length	0.015
RMSD bond angle	1.528
Data reduction software	XDS
Data scaling software	XSCALE
Refinement software	REFMAC (5.2)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000	1.600
High resolution limit [Å]	1.500	1.500
Rmerge	0.010	0.510
Number of reflections	532531
<I/σ(I)>	12	3.03
Completeness [%]	99.4	98
Redundancy	3.49	3.04

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7.5		CRYSTALLIZATION CONDITIONS: HANGING DROP AGAINST 3% PEG 400, 1.9 M AMMONIUM SULPHATE, 0.1 M TRIS PH 7.5