3DLC

Crystal structure of a putative s-adenosyl-l-methionine-dependent methyltransferase (mmp1179) from methanococcus maripaludis at 1.15 A resolution

Experimental procedure

Experimental method	MAD
Source type	SYNCHROTRON
Source details	SSRL BEAMLINE BL11-1
Synchrotron site	SSRL
Beamline	BL11-1
Temperature [K]	100
Detector technology	CCD
Collection date	2008-06-15
Detector	MARMOSAIC 325 mm CCD
Wavelength(s)	0.91837,0.97947
Spacegroup name	P 21 21 21
Unit cell lengths	39.610, 63.500, 75.440
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	29.260 - 1.150
R-factor	0.121
Rwork	0.120
R-free	0.13800
Structure solution method	MAD
RMSD bond length	0.015
RMSD bond angle	1.723
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]	29.260		1.190
High resolution limit [Å]	1.150	2.480	1.150
Rmerge	0.037	0.025	0.378
Number of reflections	68022	12763	11988
<I/σ(I)>	11.43	39.8	2.3
Completeness [%]	98.0	97.8	94.2

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, SITTING DROP	4.6	293	0.17M ammonium acetate, 15.0% Glycerol, 25.5% polyethylene glycol 4000, 0.1M sodium acetate pH 4.6, Additive - 1mM S-adenosylmethionine, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K