6ZJS

Cold-adapted beta-D-galactosidase from Arthrobacter sp. 32cB mutant E441Q in complex with galactose

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	PIXEL
Collection date	2019-04-11
Detector	DECTRIS PILATUS 2M
Wavelength(s)	0.9814
Spacegroup name	P 31 2 1
Unit cell lengths	138.378, 138.378, 127.807
Unit cell angles	90.00, 90.00, 120.00

Refinement procedure

Resolution	46.944 - 1.500
R-factor	0.1435
Rwork	0.143
R-free	0.16110
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	6etz
RMSD bond length	0.008
RMSD bond angle	0.996
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	PHENIX
Refinement software	PHENIX (1.12_2829)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	46.944	46.944	1.590
High resolution limit [Å]	1.499	4.480	1.500
Rmerge	0.089	0.038	3.368
Rmeas	0.093	0.040	3.546
Number of reflections	224751	8815	36003
<I/σ(I)>	13.44	56.27	0.58
Completeness [%]	99.9	99.9	99.6
Redundancy	10.141	9.868	10.174
CC(1/2)	0.999	0.999	0.293

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	8	293	37% TacsimateTM pH 8.0