1Z3P

X-Ray crystal structure of a mutant Ribonuclease S (M13Nva)

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	ROTATING ANODE
Source details	RIGAKU RU200
Temperature [K]	293
Detector technology	IMAGE PLATE
Collection date	2003-12-10
Detector	MARRESEARCH
Wavelength(s)	1.5418
Spacegroup name	P 31 2 1
Unit cell lengths	44.380, 44.380, 97.459
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	14.960 - 2.000
R-factor	0.189
Rwork	0.189
R-free	0.23300
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	2rln
RMSD bond length	0.005
RMSD bond angle	1.200
Data reduction software	HKL-2000
Data scaling software	SCALEPACK
Phasing software	CNS (1.1)
Refinement software	CNS (1.1)

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	20.000	2.070
High resolution limit [Å]	2.000	2.000
Rmerge	0.067	0.195
Number of reflections	7872
Completeness [%]	97.1	91.5
Redundancy	7.4

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	Batch method	5.2	293	ammonium sulfate, cesium chloride, sodium acetate, pH 5.2, Batch method, temperature 293K