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Literature summary for 4.2.1.20 extracted from

  • Bailey, C.J.; Turner, P.D.
    Purification and properties of tryptophan synthase from baker's yeast (Saccharomyces cerevisiae) (1983), Biochem. J., 209, 151-157.
    View publication on PubMedView publication on EuropePMC
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KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.011
-
 indole cosubstrate L-Ser Saccharomyces cerevisiae
0.032
-
 1-(indol-3-yl)glycerol 3-phosphate cosubstrate L-Ser Saccharomyces cerevisiae

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
74000
-
 2 * 74000, SDS-PAGE Saccharomyces cerevisiae

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
 Saccharomyces cerevisiae

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.69
-
-
 Saccharomyces cerevisiae

Storage Stability

Storage Stability Organism
-20°C, frozen solution or suspension in 50% saturated ammonium sulfate, 40% residual activity after 3 years Saccharomyces cerevisiae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
1-(indol-3-yl)glycerol 3-phosphate + L-serine
-
 Saccharomyces cerevisiae L-tryptophan + D-glyceraldehyde 3-phosphate + H2O
-
 ?

Subunits

Subunits Comment Organism
dimer 2 * 74000, SDS-PAGE Saccharomyces cerevisiae