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Literature summary for 6.1.1.19 extracted from

  • Char, S.; Gopinathan, K.P.
    Arginyl-tRNA synthetase from Mycobacterium smegmatis SN2: purification and kinetic mechanism (1986), J. Biochem., 100, 349-357.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
polyamines stimulate the formation of arginyl-tRNAArg, the stimulation being more significant at sub-optimal Mg2+ concentrations Mycolicibacterium smegmatis

Inhibitors

Inhibitors Comment Organism Structure
AMP
-
Mycolicibacterium smegmatis
diphosphate
-
Mycolicibacterium smegmatis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0001 0.0002 tRNAArg
-
Mycolicibacterium smegmatis
0.0006
-
Arg
-
Mycolicibacterium smegmatis
0.4
-
tubercidin 5'-triphosphate ATP Mycolicibacterium smegmatis

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Mycolicibacterium smegmatis
Mg2+ optimal concentration is 6 mM Mycolicibacterium smegmatis

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
55000
-
1 * 55000, SDS-PAGE Mycolicibacterium smegmatis
58000
-
gel filtration Mycolicibacterium smegmatis

Organism

Organism UniProt Comment Textmining
Mycolicibacterium smegmatis
-
-
-
Mycolicibacterium smegmatis SN2
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Mycolicibacterium smegmatis

Reaction

Reaction Comment Organism Reaction ID
ATP + L-arginine + tRNAArg = AMP + diphosphate + L-arginyl-tRNAArg rapid equilibrium random ter ter mechanism Mycolicibacterium smegmatis

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.00703
-
-
Mycolicibacterium smegmatis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
tubercidin 5'-triphosphate + L-arginine + tRNAArg
-
Mycolicibacterium smegmatis tubercidin 5'-monophosphate + diphosphate + L-arginyl-tRNAArg
-
?
tubercidin 5'-triphosphate + L-arginine + tRNAArg
-
Mycolicibacterium smegmatis SN2 tubercidin 5'-monophosphate + diphosphate + L-arginyl-tRNAArg
-
?

Subunits

Subunits Comment Organism
monomer 1 * 55000, SDS-PAGE Mycolicibacterium smegmatis