5P43

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 192

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	BESSY BEAMLINE 14.1
Synchrotron site	BESSY
Beamline	14.1
Temperature [K]	100
Detector technology	PIXEL
Collection date	2013-04-04
Detector	DECTRIS PILATUS 6M
Wavelength(s)	0.918409
Spacegroup name	P 1 21 1
Unit cell lengths	45.264, 73.055, 52.585
Unit cell angles	90.00, 109.23, 90.00

Refinement procedure

Resolution	41.064 - 1.189
R-factor	0.1417
Rwork	0.141
R-free	0.15930
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.007
RMSD bond angle	1.211
Data reduction software	XDS
Data scaling software	XDS
Phasing software	PHASER (2.5.7)
Refinement software	PHENIX

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	41.064		1.260
High resolution limit [Å]	1.190	3.550	1.190
Rmerge	0.069	0.039	0.413
Rmeas	0.081	0.046	0.510
Total number of observations	347703
Number of reflections	97527	3932	12047
<I/σ(I)>	10.9	33.45	2.37
Completeness [%]	94.1	99	72.2
Redundancy	3.565
CC(1/2)	0.997	0.996	0.810

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	4.6	290	0.1 M ammonium acetate, 0.1 M sodium acetate, 24-30% PEG 4000; crystal obtained by streak-seeding and soaked with 90 mM of fragment 192 with the SMILES code CC1=C(C)N=C2C=C(C=CC2=N1)C(=O)NC1=NC=CS1