Nomenclature Committee of the International Union of Biochemistry and Molecular Biology (NC-IUBMB)

Enzyme Nomenclature

Supplement 29 (2023)

The following documents with additions and amendments to Enzyme Nomenclature have been approved after public review:

New enzymes (26 July 2023, approved 21 August 2023)
New enzymes (6 December 2023, approved 27 December 2023)
The entries were added on the date indicated and fully approved after a month. An asterisk before 'EC' indicates that this is an amendment to an existing enzyme rather than a new enzyme entry.

Contents
EC 1.1.1.32 deleted (26 July 2023)
EC 1.1.1.33 deleted (26 July 2023)
*EC 1.2.1.82 β-apo-4′-carotenal dehydrogenase (27 December 2023)
EC 1.3.1.126 2-epi-5-epi-valiolone dehydrogenase
*EC 1.5.1.20 methylenetetrahydrofolate reductase [NAD(P)H] (26 July 2023)
*EC 1.5.99.4 nicotine 6-hydroxylase (26 July 2023)
EC 1.6.1.2 transferred now EC 7.1.1.1 (27 December 2023)
EC 1.8.1.22 dissimilatory sulfite reductase system (27 December 2023)
*EC 1.8.4.16 thioredoxin:protein disulfide reductase (26 July 2023)
EC 1.8.5.10 [DsrC]-trisulfide reductase (27 December 2023)
*EC 1.8.7.2 ferredoxin:thioredoxin reductase (26 July 2023)
EC 1.8.99.5 transferred now EC 1.8.1.22 (27 December 2023)
*EC 1.14.14.97 methyltetrahydroprotoberberine 14-monooxygenase (26 July 2023)
*EC 1.14.20.7 2-oxoglutarate/L-arginine monooxygenase/decarboxylase (succinate-forming) (26 July 2023)
*EC 2.1.1.122 (S)-tetrahydroprotoberberine N-methyltransferase (26 July 2023)
*EC 2.1.1.298 ribosomal protein uL3 N5-glutamine methyltransferase (27 December 2023)
EC 2.1.1.388 proline betaine—corrinoid protein Co-methyltransferase (26 July 2023)
EC 2.1.1.389 [methyl-Co(III) quaternary-amine-specific corrinoid protein]—tetrahydrofolate methyltransferase (26 July 2023)
EC 2.1.1.390 gentamicin X2 methyltransferase (26 July 2023)
EC 2.1.1.391 demethylgadusol O-methyltransferase (27 December 2023)
*EC 2.3.1.266 [ribosomal protein bS18]-alanine N-acetyltransferase (27 December 2023)
*EC 2.3.1.267 [ribosomal protein uS5]-alanine N-acetyltransferase (27 December 2023)
EC 2.3.1.312 D-glutamate N-acetyltransferase (26 July 2023)
EC 2.3.1.313 NAD-dependent lipoamidase (26 July 2023)
EC 2.3.2.37 ergosteryl-3β-O-L-aspartate synthase (26 July 2023)
EC 2.3.3.22 3-carboxymethyl-3-hydroxy-acyl-[acp] synthase (27 December 2023)
EC 2.4.1.129 transferred now EC 2.4.99.28 (27 December 2023)
EC 2.4.1.393 MMP α-(1→4)-mannosyltransferase (26 July 2023)
EC 2.4.1.394 4,6-α-glucanotransferase (linear substrates/linear products) (27 December 2023)
EC 2.4.1.395 reuteransucrase (27 December 2023)
EC 2.4.1.396 4,6-α-glucanotransferase (linear and branched substrates, branched products) (27 December 2023)
EC 2.4.99.26 O-antigen ligase (26 July 2023)
EC 2.4.99.27 O-antigen polymerase Wzy (26 July 2023)
EC 2.4.99.28 peptidoglycan glycosyltransferase (27 December 2023)
EC 2.5.1.157 rRNA small subunit aminocarboxypropyltransferase (26 July 2023)
*EC 2.7.7.61 citrate lyase holo-[acyl-carrier protein] synthase (26 July 2023)
EC 2.7.11.27 transferred now EC 2.7.11.31 (26 July 2023)
EC 2.7.11.35 CRIK-subfamily protein kinase (26 July 2023)
*EC 2.8.4.4 [ribosomal protein uS12] (aspartate89-C3)-methylthiotransferase (27 December 2023)
*EC 3.1.1.29 peptidyl-tRNA hydrolase (26 July 2023)
EC 3.1.1.121 ergosteryl-3β-O-L-aspartate hydrolase (26 July 2023)
EC 3.1.1.122 carbendazim hydrolysing esterase (27 December 2023)
*EC 3.1.3.62 multiple inositol-polyphosphate phosphatase (27 December 2023)
EC 3.1.8.2 transferred now EC 3.8.2.2
*EC 3.2.1.115 branched-dextran exo-1,2-α-glucosidase (26 July 2023)
EC 3.2.1.221 MMP endo-(1,4)-3-O-methyl-α-D-mannosidase (27 December 2023)
EC 3.2.1.222 funoran endo-β-hydrolase (27 December 2023)
EC 3.2.1.223 arabinogalactan exo α-(1,3)-β-L-arabinopyranosyl-(1→3)-L-arabinofuranosidase (non-reducing end) (27 December 2023)
EC 3.2.1.220 ipecoside β-D-glucosidase (26 July 2023)
EC 3.4.11.27 archaeal arginyl aminopeptidase (26 July 2023)
*EC 3.4.19.1 acylaminoacyl-peptidase (26 July 2023)
EC 3.4.21.123 kumamolysin (27 December 2023)
*EC 3.4.24.84 Ste24 endopeptidase (27 December 2023)
EC 3.4 Acting on peptide bonds (peptidases) (27 December 2023)
EC 3.4.26 Glutamic endopeptidases (27 December 2023)
EC 3.4.26.1 intramembrane prenyl-peptidase Rce1 (27 December 2023)
EC 3.4.26.2 scytalidoglutamic peptidase (27 December 2023)
*EC 3.5.1.12 biotinidase (27 December 2023)
EC 3.5.1.138 lipoamidase (26 July 2023)
EC 3.6.4.13 transferred now EC 5.6.2.5 (27 December 2023)
EC 3.8.2.2 diisopropyl-fluorophosphatase (27 December 2023)
*EC 4.1.1.87 malonyl-[malonate decarboxylase] decarboxylase (27 December 2023)
EC 4.1.1.124 malonyl-[acp] decarboxylase (27 December 2023)
EC 4.1.1.125 4-carboxy-3-alkylbut-2-enoyl-[acp] decarboxylase (27 December 2023)
EC 4.1.1.126 anhydromevalonate phosphate decarboxylase (27 December 2023)
EC 4.1.2.64 2-dehydro-3-deoxy-L-fuconate aldolase (26 July 2023)
EC 4.1.99.28 3'-dehydrocarminate deglycosidase (26 July 2023)
EC 4.2.1.181 3-carboxymethyl-3-hydroxy-acyl-[acp] dehydratase (27 December 2023)
EC 4.2.1.182 phosphomevalonate dehydratase (27 December 2023)
EC 4.2.2.29 peptidoglycan lytic transglycosylase (27 December 2023)
EC 4.2.3.212 (+)-δ-cadinol synthase (27 December 2023)
EC 4.2.3.213 colleterpenol synthase (27 December 2023)
EC 4.2.99.25 unsaturated pyranuronate lyase (26 July 2023)
EC 4.3.1.33 (R)-1-hydroxy-2-aminoethylphosphonate ammonia-lyase (26 July 2023)
EC 5.1.1.25 N-acetyl-D-glutamate racemase (26 July 2023)
EC 5.6.2.5 RNA helicase (27 December 2023)
*EC 6.3.2.34 coenzyme F420-1:γ-L-glutamate ligase (26 July 2023)
EC 6.7.1.2 3-aminoavenalumate diazotase (27 December 2023)
*EC 7.1.1.2 NADH:ubiquinone reductase (H+-translocating) (26 July 2023)
*EC 7.1.1.3 ubiquinol oxidase (H+-transporting) (27 December 2023)
EC 7.5.2.14 ABC-type homopolymeric O-antigen exporter (26 July 2023)


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