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Literature summary for 6.1.1.10 extracted from

  • Rosa, M.D.; Sigler, P.B.
    Isolation and characterization of two methionine:tRNA ligases from wheat germ (1977), Eur. J. Biochem., 78, 141-151.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.018
-
Met ligase A and B Triticum aestivum
0.3
-
ATP ligase B Triticum aestivum
0.6
-
ATP ligase A Triticum aestivum

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+
-
Triticum aestivum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
63000
-
ligase B, sucrose density gradient centrifugation Triticum aestivum
70000
-
1 * 70000, ligase B, SDS-PAGE Triticum aestivum
90000
-
enzyme form A, sucrose density gradient centrifugation Triticum aestivum
105000
-
1 * 105000, ligase A, SDS-PAGE Triticum aestivum

Organism

Organism UniProt Comment Textmining
Triticum aestivum
-
-
-

Purification (Commentary)

Purification (Comment) Organism
two forms: ligase A and B Triticum aestivum

Source Tissue

Source Tissue Comment Organism Textmining
germ
-
Triticum aestivum
-

Storage Stability

Storage Stability Organism
-20°C, 50% v/v glycerol, stable for several months Triticum aestivum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + L-methionine + tRNAMet
-
Triticum aestivum AMP + diphosphate + L-methionyl-tRNAMet
-
?

Subunits

Subunits Comment Organism
monomer 1 * 70000, ligase B, SDS-PAGE Triticum aestivum
monomer 1 * 105000, ligase A, SDS-PAGE Triticum aestivum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8 8.5
-
Triticum aestivum