3CCF

Crystal structure of putative methyltransferase (YP_321342.1) from Anabaena variabilis ATCC 29413 at 1.90 A resolution

Experimental procedure

Experimental method	MAD
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL9-2
Synchrotron site	SSRL
Beamline	BL9-2
Temperature [K]	100
Detector technology	CCD
Collection date	2008-01-13
Detector	MARMOSAIC 325 mm CCD
Wavelength(s)	0.91162, 0.97980, 0.97968
Spacegroup name	P 21 21 21
Unit cell lengths	56.830, 67.230, 131.400
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	29.921 - 1.900
R-factor	0.182
Rwork	0.180
R-free	0.21900
Structure solution method	MAD
RMSD bond length	0.017
RMSD bond angle	1.704
Data reduction software	XDS
Data scaling software	XSCALE
Phasing software	SHELX
Refinement software	REFMAC (5.4.0067)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	29.921	29.921	1.970
High resolution limit [Å]	1.900	4.080	1.900
Rmerge	0.056	0.023	0.502
Number of reflections	40355	7711	7587
<I/σ(I)>	9.39	26.5	1.7
Completeness [%]	99.2	99	95.6

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	6	277	NANODROP, 1.0M LiCl, 20.0% PEG 6000, 0.1M MES pH 6.0, VAPOR DIFFUSION, SITTING DROP, temperature 277K