5P2B

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 129

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	BESSY BEAMLINE 14.2
Synchrotron site	BESSY
Beamline	14.2
Temperature [K]	100
Detector technology	CCD
Collection date	2013-01-23
Detector	MARMOSAIC 225 mm CCD
Wavelength(s)	0.91841
Spacegroup name	P 1 21 1
Unit cell lengths	45.310, 73.210, 52.680
Unit cell angles	90.00, 109.19, 90.00

Refinement procedure

Resolution	36.605 - 1.700
R-factor	0.1378
Rwork	0.135
R-free	0.18210
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.008
RMSD bond angle	1.127
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]	42.793		1.800
High resolution limit [Å]	1.700	5.070	1.700
Rmerge	0.072	0.024	0.453
Rmeas	0.083	0.027	0.519
Total number of observations	150404
Number of reflections	35733	1388	5722
<I/σ(I)>	16.46	46.32	3.3
Completeness [%]	99.7	99.4	99.7
Redundancy	4.209
CC(1/2)	0.998	0.999	0.849

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 129 with the SMILES code CN(CC(=O)N1CCNC1=O)CC1=CC=C(Br)S1