5P4Q

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 215

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	BESSY BEAMLINE 14.3
Synchrotron site	BESSY
Beamline	14.3
Temperature [K]	100
Detector technology	CCD
Collection date	2013-04-18
Detector	MAR CCD 165 mm
Wavelength(s)	0.8944
Spacegroup name	P 1 21 1
Unit cell lengths	45.379, 73.560, 53.131
Unit cell angles	90.00, 109.83, 90.00

Refinement procedure

Resolution	29.623 - 1.587
R-factor	0.1423
Rwork	0.141
R-free	0.17360
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.008
RMSD bond angle	1.142
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]	42.687		1.680
High resolution limit [Å]	1.590	4.740	1.590
Rmerge	0.079	0.024	0.497
Rmeas	0.092	0.028	0.580
Total number of observations	166486
Number of reflections	44182	1710	6976
<I/σ(I)>	15.76	45.12	3.31
Completeness [%]	99.3	98.7	97
Redundancy	3.768
CC(1/2)	0.998	0.999	0.822

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 215 with the SMILES code CCC1=CC=C(C)N=C1NC(=O)C1=C(C)N=NS1