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. 2016 Dec 22;292(10):4003–4021. doi: 10.1074/jbc.M116.759118

FIGURE 13.

FIGURE 13.

A, fragmentation rule expressed as SMARTS string. The rule consists of two atom definitions and a bond definition. Enclosed in square brackets (blue) are atoms connected by any bond type except for a ring bond (orange). The atom on the left can be of any type but must be a member of a ring system (hydrogen atoms are excluded indirectly because they are not allowed to form ring systems). On the right, the atom must not be a terminal atom (hydrogen atoms are excluded indirectly because they are always terminal). B, breakable bonds (orange) as defined by the fragmentation rule and the resulting fragments (blue) based on the substrates 21 and 30 and their corresponding prenylation products 21a and 30a.