ENTRY       EC 2.7.7.21
NAME        tRNA cytidylyltransferase
            tRNA CCA-pyrophosphorylase
CLASS       Transferases
            Transferring phosphorus-containing groups
            Nucleotidyltransferases
SYSNAME     CTP:tRNA cytidylyltransferase
REACTION    CTP + tRNA(n) = Pyrophosphate + tRNA(n+1)
SUBSTRATE   CTP
            tRNA(n)
PRODUCT     Pyrophosphate
            tRNA(n+1)
COMMENT     May be identical with EC 2.7.7.25.
DBLINKS     University of Geneva ENZYME DATA BANK: 2.7.7.21
            WIT (What Is There) Metabolic Reconstruction: 2.7.7.21
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