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Literature summary for 6.1.1.17 extracted from

  • Lea, P.J.; Fowden, L.
    Stereospecificity of glutamyl-tRNA synthetase isolated from higher plants (1972), Phytochemistry, 11, 2129-2138.
No PubMed abstract available

General Stability

General Stability Organism
no stabilization by various sulfydryl reagents, glycerol and glutamic acid Vigna radiata var. radiata

Inhibitors

Inhibitors Comment Organism Structure
erythro-4-Hydroxy-DL-glutamic acid glutamate transfer to tRNA Vigna radiata var. radiata
erythro-gamma-methyl-L-glutamic acid glutamate transfer to tRNA Vigna radiata var. radiata
KCl 100 mM, 15% inhibition of ATP-diphosphate exchange, 500 mM, 62% inhibition Vigna radiata var. radiata
LiCl 100 mM, 22% inhibition of ATP-diphosphate exchange, 500 mM, 73% inhibition Vigna radiata var. radiata
NaCl 100 mM, 40% inhibition of ATP-diphosphate exchange, 500 mM, 91% inhibition Vigna radiata var. radiata
NH4Cl 100 mM, 31% inhibition of ATP-diphosphate exchange, 500 mM, 82% inhibition of ATP-diphosphate exchange Vigna radiata var. radiata
threo-4-Hydroxy-L-glutamic acid glutamate transfer to tRNA Caesalpinia bondue
threo-4-Hydroxy-L-glutamic acid glutamate transfer to tRNA Vigna radiata var. radiata
threo-4-Methyl-D-glutamic acid glutamate transfer to tRNA Caesalpinia bondue
threo-4-Methyl-D-glutamic acid glutamate transfer to tRNA Vigna radiata var. radiata

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information
-
Vigna radiata var. radiata
additional information
-
additional information
-
Hemerocallis fulva
additional information
-
additional information
-
Caesalpinia bondue

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Vigna radiata var. radiata
Mg2+ required Hemerocallis fulva
Mg2+ required Caesalpinia bondue
Mg2+ Km: 3.4 mM, ATP-diphosphate exchange Hemerocallis fulva
Mg2+ Km: 2.2 mM, ATP-diphosphate exchange, 6.3 mM, glutamate-tRNA formation Caesalpinia bondue
Mg2+ Km: 1.8 mM, ATP-diphosphate exchange, 4.8 mM, glutamate-tRNA formation Vigna radiata var. radiata

Organism

Organism UniProt Comment Textmining
Caesalpinia bondue
-
-
-
Hemerocallis fulva
-
-
-
Vigna radiata var. radiata
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Vigna radiata var. radiata
-
Hemerocallis fulva
-
Caesalpinia bondue

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Hemerocallis fulva
-
seed
-
Vigna radiata var. radiata
-
seed
-
Caesalpinia bondue
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0148
-
-
Caesalpinia bondue
0.0263
-
-
Vigna radiata var. radiata
0.0396
-
-
Hemerocallis fulva

Storage Stability

Storage Stability Organism
85% loss of activity after 24 h Vigna radiata var. radiata

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + L-glutamate + tRNAGlu
-
Vigna radiata var. radiata AMP + diphosphate + L-glutamyl-tRNAGlu
-
?
ATP + L-glutamate + tRNAGlu
-
Hemerocallis fulva AMP + diphosphate + L-glutamyl-tRNAGlu
-
?
ATP + L-glutamate + tRNAGlu
-
Caesalpinia bondue AMP + diphosphate + L-glutamyl-tRNAGlu
-
?
additional information ATP-diphosphate exchange Vigna radiata var. radiata ?
-
?
additional information threo-4-methyl-DL-glutamic acid or threo-4-hydroxy-L-glutamic acid can promote ATP-diphosphate exchange Vigna radiata var. radiata ?
-
?
additional information threo-4-methyl-DL-glutamic acid or threo-4-hydroxy-L-glutamic acid can promote ATP-diphosphate exchange Caesalpinia bondue ?
-
?
additional information erythro-4-methyl-L-glutamic acid, erythro-4-hydroxy-DL-glutamic acid, or 2(S),4(S)-4-hydroxy-4-methyl-L-glutamic acid can promote ATP-diphosphate exchange Vigna radiata var. radiata ?
-
?
additional information erythro-4-methyl-L-glutamic acid, erythro-4-hydroxy-DL-glutamic acid, or 2(S),4(S)-4-hydroxy-4-methyl-L-glutamic acid can promote ATP-diphosphate exchange Hemerocallis fulva ?
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
12 min assay Vigna radiata var. radiata

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.8 8.2 ATP-diphosphate exchange Vigna radiata var. radiata

pH Range

pH Minimum pH Maximum Comment Organism
7 8.2 7: rapid drop of activity below, 7.8-8.2: maximal activity Vigna radiata var. radiata