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Literature summary extracted from

  • Keith, J.M.; Venkatesan, S.; Gershowitz, A.; Moss, B.
    Purification and characterization of the messenger ribonucleic acid capping enzyme GTP:RNA guanylyltransferase from wheat germ (1982), Biochemistry, 21, 327-333.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.7.7.50 diphosphate 50% at 0.005 mM, complete at 0.05 mM Triticum aestivum
2.7.7.50 phosphate weak Triticum aestivum

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.7.7.50 0.000014
-
pp(5')A(pA)n pH 7.9, 37°C Triticum aestivum
2.7.7.50 0.0027
-
GTP pH 7.9, 37°C Triticum aestivum

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.7.7.50 Mg2+ can partially replace Mn2+ in activation Triticum aestivum
2.7.7.50 Mn2+ required Triticum aestivum

Organism

EC Number Organism UniProt Comment Textmining
2.7.7.50 Triticum aestivum
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.7.7.50 2000fold Triticum aestivum

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.7.7.50 germ
-
Triticum aestivum
-

Storage Stability

EC Number Storage Stability Organism
2.7.7.50 -20°C, stable for more than 6 months, considerably longer at -70°C Triticum aestivum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.7.50 GTP + pp(5')A(pA)n
-
Triticum aestivum ?
-
?
2.7.7.50 GTP + pp(5')RNA
-
Triticum aestivum G(5')ppp(5')RNA + diphosphate guanosine residue linked 5' through three phosphates to the 5' position of the terminal residue ?
2.7.7.50 additional information specificity overview Triticum aestivum ?
-
?
2.7.7.50 additional information little sequence specificity for RNA acceptor Triticum aestivum ?
-
?
2.7.7.50 additional information no acceptor: RNA with a single 5'-terminal phosphate Triticum aestivum ?
-
?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.7.7.50 37
-
assay at Triticum aestivum

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7.7.50 7.9
-
assay at Triticum aestivum