1OZB

Crystal Structure of SecB complexed with SecA C-terminus

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 14-BM-C
Synchrotron site	APS
Beamline	14-BM-C
Temperature [K]	100
Detector technology	CCD
Collection date	2002-11-12
Detector	ADSC QUANTUM 4
Wavelength(s)	0.9
Spacegroup name	P 41 21 2
Unit cell lengths	114.500, 114.500, 286.100
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	50.000 * - 2.800
R-factor	0.226
Rwork	0.226
R-free	0.26800 *
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	SecB coordinate
RMSD bond length	0.008
RMSD bond angle	25.200 *
Data reduction software	HKL-2000
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	CNS (1.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	50.000	2.900
High resolution limit [Å]	2.800	2.800
Rmerge	0.056 *	0.294 *
Total number of observations	323553 *
Number of reflections	47436
<I/σ(I)>	31.3	6
Completeness [%]	99.2	98.1
Redundancy	6.8	4.7

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	9.7	277	PEG 2000, magnesium sulfate, benzamidine hydrochloride, glycine , pH 9.7, VAPOR DIFFUSION, SITTING DROP, temperature 277.0K

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	17.4 (mg/ml)
2	1	reservoir	PEG2000	24.5 (%(w/v))
3	1	reservoir		200 (mM)
4	1	reservoir	glycine	100 (mM)	pH9.7