3QKW

Structure of Streptococcus parasangunini Gtf3 glycosyltransferase

Experimental procedure

Experimental method	SAD
Source type	SYNCHROTRON
Source details	APS BEAMLINE 22-ID
Synchrotron site	APS
Beamline	22-ID
Temperature [K]	100
Detector technology	CCD
Collection date	2010-04-05
Detector	MARMOSAIC 300 mm CCD
Wavelength(s)	1.033
Spacegroup name	P 21 21 21
Unit cell lengths	77.217, 99.244, 188.185
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	42.512 - 2.287
R-factor	0.1901
Rwork	0.187
R-free	0.24980
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	A SAD dataset was collected using Se-Met crystal. Initial structure determined in spacegroup C2221 with Gtf3 dimer.
RMSD bond length	0.008
RMSD bond angle	1.145
Data reduction software	DENZO
Data scaling software	SCALEPACK
Phasing software	PHENIX
Refinement software	PHENIX ((phenix.refine: 1.6.1_351))

Data quality characteristics

	Overall	Outer shell
Low resolution limit [Å]	42.512	2.180
High resolution limit [Å]	2.100	2.100
Rmerge	0.090	0.479
Number of reflections	63229
<I/σ(I)>	16.2	10.8
Completeness [%]	98.2	96
Redundancy	5.6	3.5

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	7	293	1 ul of protein solution (15 mg/ml protein and 10mM UDP-Glucose) was mixed with 1 ul of reservoir (0.1M Succinic Acid, 11% Polyethylene glycol 3,350, 10% glycerol), pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K