1WMD

Crystal Structure of alkaline serine protease KP-43 from Bacillus sp. KSM-KP43 (1.30 angstrom, 100 K)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SPRING-8 BEAMLINE BL40B2
Synchrotron site	SPring-8
Beamline	BL40B2
Temperature [K]	100
Detector technology	CCD
Collection date	2001-05-28
Detector	ADSC QUANTUM 4r
Wavelength(s)	0.85
Spacegroup name	C 2 2 21
Unit cell lengths	42.840, 109.036, 166.912
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	100.000 - 1.300
R-factor	0.134
R-free	0.16910
Structure solution method	FOURIER SYNTHESIS
RMSD bond length	0.015
RMSD bond angle	0.029
Data reduction software	HKL-2000
Data scaling software	SCALEPACK
Phasing software	CNS
Refinement software	SHELXL-97

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	100.000	1.320
High resolution limit [Å]	1.300	1.300
Rmerge	0.053	0.283
Number of reflections	94791
<I/σ(I)>	17.761	3.091
Completeness [%]	98.0	98.5
Redundancy	4.799

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	7.3	293	0.1M HEPES-NaOH pH 7.3, 1.7M ammonium sulfate, 10mM calcium chloride, 10% (v/v) 1,4-dioxane, VAPOR DIFFUSION, SITTING DROP, temperature 293K