6WMN

Human poly-N-acetyl-lactosamine synthase structure demonstrates a modular assembly of catalytic subsites for GT-A glycosyltransferases

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	APS BEAMLINE 22-ID
Synchrotron site	APS
Beamline	22-ID
Temperature [K]	100
Detector technology	CCD
Collection date	2016-04-27
Detector	RAYONIX MX300-HS
Wavelength(s)	1.00
Spacegroup name	P 1 21 1
Unit cell lengths	67.210, 79.810, 157.790
Unit cell angles	90.00, 97.89, 90.00

Refinement procedure

Resolution	44.070 - 2.040
R-factor	0.2187
Rwork	0.218
R-free	0.23210
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	6wmm
RMSD bond length	0.004
RMSD bond angle	0.564
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	PHASER
Refinement software	PHENIX (1.12_2829)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	44.070	44.070	2.090
High resolution limit [Å]	2.040	9.120	2.040
Rmerge	0.088
Rmeas	0.095	0.038
Total number of observations	790241
Number of reflections	105155	1235	7723
<I/σ(I)>	13.89	51.2	0.99
Completeness [%]	99.8	97.9	99.4
Redundancy	7.515	6.773	7.29
CC(1/2)	0.999	0.997	0.511

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7.5	293	11% PEG3350, 12% Ethylene glycol, 100 mM Hepes pH 7.5