2W20

Structure of the catalytic domain of the native NanA sialidase from Streptococcus pneumoniae

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	ESRF BEAMLINE ID14-2
Synchrotron site	ESRF
Beamline	ID14-2
Temperature [K]	100
Detector technology	CCD
Detector	ADSC CCD
Spacegroup name	P 21 21 21
Unit cell lengths	47.200, 96.600, 218.200
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	40.230 - 1.490
R-factor	0.201
Rwork	0.200
R-free	0.22500
Structure solution method	OTHER
Starting model (for MR)	NONE
RMSD bond length	0.000
RMSD bond angle	1.220
Refinement software	PHENIX ((PHENIX.REFINE))

Data quality characteristics

	Overall
Low resolution limit [Å]	20.000
High resolution limit [Å]	1.490
Rmerge	0.070
Number of reflections	159417
<I/σ(I)>	16
Completeness [%]	97.0
Redundancy	3.9

Crystallization Conditions

crystal ID	method	pH	temperature	details
1				25% PEG4K, 0.1 M MES PH6.0