1B9Z

BACILLUS CEREUS BETA-AMYLASE COMPLEXED WITH MALTOSE

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Temperature [K]	291
Detector technology	AREA DETECTOR
Collection date	1997-03
Detector	SIEMENS HI-STAR
Spacegroup name	P 1 21 1
Unit cell lengths	58.160, 93.740, 66.660
Unit cell angles	90.00, 102.44, 90.00

Refinement procedure

Resolution	11.000 - 2.100
Rwork	0.170
R-free	0.22000
Structure solution method	MIR
RMSD bond length	0.015
RMSD bond angle	24.100 *
Data reduction software	SAINT
Data scaling software	SAINT
Phasing software	PHASES
Refinement software	X-PLOR (3.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	30.000	2.070
High resolution limit [Å]	2.000	1.999
Rmerge	0.046 *
Total number of observations	92118 *
Number of reflections	39463
Completeness [%]	83.4	38.7
Redundancy	2.33

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	4.6	18 *	drop consists of equal volume of protein and precipitant solutions *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	protein	10 (mg/ml)
2	1	drop	acetate	0.1 (M)
3	1	reservoir	PEG6000	18 (%)	precipitant
4	1	reservoir	ammonium sulfate	5 (%sat)	precipitant
5	1	reservoir	acetate	0.1 (M)	precipitant