The Enzyme Database

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Accepted name: tRNAThr (cytosine32-N3)-methyltransferase
Reaction: (1) S-adenosyl-L-methionine + cytosine32 in tRNAThr = S-adenosyl-L-homocysteine + N3-methylcytosine32 in tRNAThr
(2) S-adenosyl-L-methionine + cytosine32 in tRNASer = S-adenosyl-L-homocysteine + N3-methylcytosine32 in tRNASer
Other name(s): ABP140; Trm140p
Systematic name: S-adenosyl-L-methionine:tRNAThr (cytosine32-N3)-methyltransferase
Comments: The enzyme from Saccharomyces cerevisiae specifically methylates cytosine32 in tRNAThr and in tRNASer.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Noma, A., Yi, S., Katoh, T., Takai, Y., Suzuki, T. and Suzuki, T. Actin-binding protein ABP140 is a methyltransferase for 3-methylcytidine at position 32 of tRNAs in Saccharomyces cerevisiae. RNA 17 (2011) 1111–1119. [PMID: 21518805]
2.  D'Silva, S., Haider, S.J. and Phizicky, E.M. A domain of the actin binding protein Abp140 is the yeast methyltransferase responsible for 3-methylcytidine modification in the tRNA anti-codon loop. RNA 17 (2011) 1100–1110. [PMID: 21518804]
[EC created 2013]

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