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Literature summary for 2.7.7.50 extracted from

  • Itho, N.; Yamada, H.; Kaziro, Y.; Mizumoto, K.
    Messenger RNA guanylyltransferase from Saccharomyces cerevisiae. Large scale purification, subunit functions, and subcellular localization (1987), J. Biol. Chem., 262, 1989-1995.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
nucleus
-
Saccharomyces cerevisiae 5634
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
52000
-
x * 80000, beta, RNA 5-triphosphatase + x * 52000, alpha, mRNA guanylyltransferase activity, SDS-PAGE Saccharomyces cerevisiae
80000
-
x * 80000, beta, RNA 5-triphosphatase + x * 52000, alpha, mRNA guanylyltransferase activity, SDS-PAGE Saccharomyces cerevisiae
180000
-
glycerol density gradient sedimentation Saccharomyces cerevisiae

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Saccharomyces cerevisiae mRNA capping enzyme ?
-
?

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Purification (Commentary)

Purification (Comment) Organism
large scale, to homogeneity, enzyme has mRNA guanylyltransferase activity Saccharomyces cerevisiae

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
7.27
-
purified enzyme Saccharomyces cerevisiae

Storage Stability

Storage Stability Organism
-80°C, stable for at least 6 months Saccharomyces cerevisiae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
GTP + pp(5')RNA
-
Saccharomyces cerevisiae G(5')ppp(5')RNA + diphosphate guanosine residue linked 5' through three phosphates to the 5' position of the terminal residue ?
additional information mRNA capping enzyme Saccharomyces cerevisiae ?
-
?

Subunits

Subunits Comment Organism
? x * 80000, beta, RNA 5'-triphosphatase + x * 52000, alpha, mRNA guanylyltransferase activity, SDS-PAGE Saccharomyces cerevisiae

Synonyms

Synonyms Comment Organism
capping enzyme
-
Saccharomyces cerevisiae
mRNA capping enzyme has mRNA guanylyltransferase and RNA 5'-triphosphatase activity Saccharomyces cerevisiae