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Literature summary for 4.2.1.70 extracted from

  • Arluison, V.; Buckle, M.; Grosjean, H.
    Pseudouridine synthetase Pus1 of Saccharomyces cerevisiae: kinetic characterisation, tRNA structural requirement and real-time analysis of its complex with tRNA (1999), J. Mol. Biol., 289, 491-502.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.00042
-
tRNAVal Pus1, yeast tRNAVal Saccharomyces cerevisiae
0.00074
-
tRNAIle Pus1, intronless yeast tRNAIle Saccharomyces cerevisiae
0.0015
-
tRNAVal Pus1, yeast tRNAVal, in the presence of 5 mM EDTA and in the absence of Mg2+ Saccharomyces cerevisiae

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Saccharomyces cerevisiae pseudouridine synthase Pus1p displays a multisite substrate specificity ?
-
?
additional information Saccharomyces cerevisiae a model for Pus1 mechanism ?
-
?

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Saccharomyces cerevisiae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information pseudouridine synthase Pus1p displays a multisite substrate specificity Saccharomyces cerevisiae ?
-
?
additional information a model for Pus1 mechanism Saccharomyces cerevisiae ?
-
?
tRNAIle
-
Saccharomyces cerevisiae ?
-
?
tRNAVal
-
Saccharomyces cerevisiae ?
-
?

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.00667
-
tRNAVal substrate from yeast, limiting Saccharomyces cerevisiae
0.00833
-
tRNAVal substrate from yeast, in absence of Mg2+ Saccharomyces cerevisiae
0.00833
-
tRNAIle substrate from yeast, intronless, limiting Saccharomyces cerevisiae