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Literature summary extracted from

  • Airas, R.K.
    Differences in the magnesium dependences of the class I and class II aminoacyl-tRNA synthetases from Escherichia coli (1996), Eur. J. Biochem., 240, 223-231.
    View publication on PubMed

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
6.1.1.6 Mg2+ requires three Mg2+ in the activation reaction (including the one in MgATP). Both MgPPi and Mg2PPi, participate in the pyrophosphorolysis of the aminoacyl adenylate Escherichia coli
6.1.1.19 Mg2+ requires one Mg2+ for the activation reaction (MgATP2-) Escherichia coli
6.1.1.20 Mg2+ requires three Mg2+ in activation reaction (including the one in Mg2+) Escherichia coli
6.1.1.21 Mg2+ enzyme requires three Mg2+ for the activation reaction (including the one in MgATP2-), both MgP2O7- and Mg2P2O7 participate in the pyrophosphorolysis of the aminoacyl adenylate Escherichia coli

Organism

EC Number Organism UniProt Comment Textmining
6.1.1.6 Escherichia coli
-
-
-
6.1.1.19 Escherichia coli
-
-
-
6.1.1.20 Escherichia coli
-
-
-
6.1.1.21 Escherichia coli
-
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
6.1.1.20 ATP + L-phenylalanine + tRNAPhe
-
 Escherichia coli AMP + diphosphate + L-phenylalanyl-tRNAPhe
-
 ?
6.1.1.21 ATP + L-histidine + tRNAHis
-
 Escherichia coli AMP + diphosphate + L-histidyl-tRNAHis
-
 ?