5OZA

Automated refinement of diffraction data obtained from an endothiapepsin crystal treated with fragment 21

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	CCD
Collection date	2012-09-04
Detector	MARMOSAIC 225 mm CCD
Wavelength(s)	0.9184
Spacegroup name	P 1 21 1
Unit cell lengths	45.526, 72.942, 53.189
Unit cell angles	90.00, 109.79, 90.00

Refinement procedure

Resolution	36.471 - 1.490
R-factor	0.1371
Rwork	0.135
R-free	0.17470
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	4y5l
RMSD bond length	0.008
RMSD bond angle	1.181
Data reduction software	HKL-2000
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]	50.000	50.000	1.520
High resolution limit [Å]	1.490	4.040	1.490
Rmerge	0.061	0.030	0.355
Total number of observations	109799
Number of reflections	47545
<I/σ(I)>	12.4
Completeness [%]	89.9	80.4	91.3
Redundancy	2.3	2.5	2

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 21 with the SMILES code CC1=CC=CC(C)=C1NC(=O)C1=CC=C2N=NSC2=C1