Surface engineering of proteins can be a powerful technique for dealing with proteins that yield no or poorly diffracting crystals. In particularly, reductive methylation of proteins has emerged as a standard procedure in several large scale facilities and research programs, i.e. the Midwest Centre of Structural genomics  and the Structural Proteomics In Europe (SPINE) program [2,3].
The JBS Methylation Kit is designed for selective methylation of lysine residues. The method does not require laborious cloning/expression/purification but chemically replaces the protons of the amino group of all lysine residues with methyl groups. The result is a surface-engineered protein within 24 hours ready for crystallization.
Each JBScreen Methylation Kit contains all necessary reagents for six methylation experiments. All components are provided ready for use. Just follow the manual step-by-step. No background in chemistry necessary.
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