Name the class of enzyme that usually catalyze the following reaction : $\mathrm{S}-\mathrm{G}+\mathrm{S}^{\#} \rightarrow \mathrm{~S}+\mathrm{S}^{\#}-\mathrm{G}$ Where, $G \rightarrow$ a group other than hydrogen $S \rightarrow$ a substrate $\mathrm{S}^{\#} \rightarrow$ another substrate

Enzymes catalysing a transfer of $G$ group, (other than hydrogen) between a pair of substrates, S and $\mathrm{S}^{\prime}$ are known as transferases. $\mathrm{S}-\mathrm{G}+\mathrm{S}^{\#} \rightarrow \mathrm{~S}+\mathrm{S}^{\#}-\mathrm{G}$ - Ligases catalyse the linking together of 2 compounds such as $C-O, C-S, C-N$ bonds etc - Lyases catalyse removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds Hydrolases are enzymes that catalyse hydrolysis of ester, ether, peptide, glycosidic, $\mathrm{C}-\mathrm{C}, \mathrm{C}$ - halide or $\mathrm{P}-\mathrm{N}$ bonds.