5P1P

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 108

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	2014-02-15
Detector	MAR CCD 165 mm
Wavelength(s)	0.8944
Spacegroup name	P 1 21 1
Unit cell lengths	45.284, 72.903, 52.607
Unit cell angles	90.00, 109.25, 90.00

Refinement procedure

Resolution	28.138 - 1.319
R-factor	0.1328
Rwork	0.132
R-free	0.15700
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.007
RMSD bond angle	1.197
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]	42.752		1.400
High resolution limit [Å]	1.320	3.940	1.320
Rmerge	0.051	0.016	0.508
Rmeas	0.059	0.019	0.584
Total number of observations	315118
Number of reflections	75571	2913	12032
<I/σ(I)>	18.57	66.94	2.8
Completeness [%]	99.5	99	98.7
Redundancy	4.169
CC(1/2)	0.999	1.000	0.808

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 108 with the SMILES code CC(=O)C1=C(C)NC(C(=O)NC2=NN=C(C)S2)=C1C