5P65

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 266

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	2013-07-18
Detector	DECTRIS PILATUS 6M
Wavelength(s)	0.91841
Spacegroup name	P 1 21 1
Unit cell lengths	45.251, 73.046, 52.778
Unit cell angles	90.00, 109.50, 90.00

Refinement procedure

Resolution	19.779 - 1.100
R-factor	0.1294
Rwork	0.129
R-free	0.14150
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.006
RMSD bond angle	1.194
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]	19.779		1.170
High resolution limit [Å]	1.100	3.260	1.100
Rmerge	0.032	0.013	0.482
Rmeas	0.037	0.016	0.568
Total number of observations	459168
Number of reflections	127054	5072	19588
<I/σ(I)>	20.48	80.44	2.7
Completeness [%]	97.0	98.2	93
Redundancy	3.613
CC(1/2)	1.000	1.000	0.838

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 266 with the SMILES code CN(C)C1=CC=C(C=N1)C(O)=O