5P5Y

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 259

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)	0.918409
Spacegroup name	P 1 21 1
Unit cell lengths	45.329, 72.993, 52.745
Unit cell angles	90.00, 109.36, 90.00

Refinement procedure

Resolution	34.779 - 1.139
R-factor	0.1318
Rwork	0.131
R-free	0.14280
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.006
RMSD bond angle	1.188
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]	42.765		1.210
High resolution limit [Å]	1.140	3.410	1.140
Rmerge	0.039	0.021	0.537
Rmeas	0.046	0.025	0.640
Total number of observations	414845
Number of reflections	116114	4481	17911
<I/σ(I)>	15.63	54.5	2.11
Completeness [%]	98.2	98.7	94.1
Redundancy	3.572
CC(1/2)	0.999	0.999	0.782

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 259 with the SMILES code O=C(NCC1CC1)C1=NNC(=O)C2=CC=CC=C12