16S rRNA (cytosine1402-N4)-methyltransferase (, RsmH, MraW) is an enzyme with systematic name S-adenosyl-L-methionine:16S rRNA (cytosine1402-N4)-methyltransferase. This enzyme catalyses the following chemical reaction
S-adenosyl-L-methionine + cytosine1402 in 16S rRNA S-adenosyl-L-homocysteine + N4-methylcytosine1402 in 16S rRNA
RsmH catalyses the N4-methylation of cytosine1402.
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