1ELT

STRUCTURE OF NATIVE PANCREATIC ELASTASE FROM NORTH ATLANTIC SALMON AT 1.61 ANGSTROMS RESOLUTION

Experimental procedure

Detector technology	DIFFRACTOMETER
Collection date	1993-07-08
Detector	ENRAF-NONIUS FAST
Spacegroup name	P 41 21 2
Unit cell lengths	68.000, 68.000, 83.980
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	8.000 - 1.610
R-factor	0.172
R-free	0.23900
RMSD bond length	0.008
RMSD bond angle	26.300 *
Data reduction software	PROCOR ((KABSCH))
Phasing software	X-PLOR
Refinement software	PROLSQ

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	4.820 *
High resolution limit [Å]	1.610 *	1.610 *
Rmerge	0.024	0.174 *
Total number of observations	36833 *
Number of reflections	21574	1660 *
Completeness [%]	83.6	46.1 *
Redundancy	1.7	1.2 *

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Vapor diffusion, hanging drop *	7.3 *

Crystallization Reagents in Literatures

ID	crystal ID	solution	reagent name	concentration (unit)	details
1	1	drop	elastase	9.5 (mg/ml)
2	1	drop	MPD	20 (%(v/v))
3	1	drop	sodium citrate	0.1 (M)
4	1	drop	HEPES	50 (mM)
5	1	reservoir	PEG4000	10 (%(w/v))
6	1	reservoir	2-propanol	5 (%(v/v))
7	1	reservoir	HEPES	50 (mM)