1AF0

SERRATIA PROTEASE IN COMPLEX WITH INHIBITOR

Experimental procedure

Source type	ROTATING ANODE
Source details	RIGAKU RUH2R
Temperature [K]	290
Detector technology	IMAGE PLATE
Collection date	1995-10
Detector	MARRESEARCH
Spacegroup name	P 21 21 21
Unit cell lengths	151.000, 109.200, 42.600
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	30.000 - 1.800
R-factor	0.242
Structure solution method	DIFFERENCE FOURIER
Starting model (for MR)	1sat
RMSD bond length	0.006
RMSD bond angle	0.022
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	X-PLOR
Refinement software	SHELXL

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	25.000	1.850
High resolution limit [Å]	1.800	1.800
Rmerge	0.058	0.251
Number of reflections	61944
<I/σ(I)>	15.6	3.4
Completeness [%]	93.7	81.7
Redundancy	3.5	2.4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1		6.5		0.2 M AMMONIUM SULFATE, 20%PEG 4K, PH 6.5