Table 1.

Summary of methylation results for protein sets used in this study

Description of protein set	Number of proteins in the set	Macroscopic crystals after methylation	Diffraction-quality crystals after methylation	Structures solved	Overall success rate (percentage of structures solved)
Crystallized previously but crystals unsuitable for structure determination	269	59	33	20	7.4
Screened previously but no crystals obtained	85	8	5	5	5.9
Proteins not previously screened	16	5	2	1	6.3
Total	370	72	40	26	7.0