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Literature summary for 2.3.1.74 extracted from

  • Peters, A.; Schneider-Poetsch, H.A.W.; Schwarz, H.; Weissenböck, G.
    Biochemical and immunological characterization of chalcone synthase from rye leaves (1988), J. Plant Physiol., 133, 178-182.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
apigenin 50% inhibition at 0.009 mM Secale cereale
CoA 50% inhibition at 0.036 mM Secale cereale
eriodictyol 50% inhibition at 0.045 mM Secale cereale
isovitexin 2''-O-arabinoside 50% inhibition at 0.062 mM Secale cereale
luteolin 50% inhibition at 0.013 mM Secale cereale
naringenin 50% inhibition at 0.045 mM Secale cereale

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0006
-
4-coumaroyl-CoA
-
Secale cereale
0.0014 0.0015 malonyl-CoA
-
Secale cereale
0.00145
-
caffeoyl-CoA
-
Secale cereale

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
43000
-
1 * 43000 + 1 * 44000, SDS-PAGE Secale cereale
44000
-
1 * 43000 + 1 * 44000, SDS-PAGE Secale cereale

Organism

Organism UniProt Comment Textmining
Secale cereale
-
rye
-

Purification (Commentary)

Purification (Comment) Organism
450fold Secale cereale

Source Tissue

Source Tissue Comment Organism Textmining
leaf seedling Secale cereale
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0064
-
-
Secale cereale

Storage Stability

Storage Stability Organism
-20°C, 4 mg/ml bovine serum albumin Secale cereale

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
caffeoyl-CoA + 3 malonyl-CoA
-
Secale cereale eriodictyol + 4 CoA + 3 CO2
-
?
malonyl-CoA + 4-coumaroyl-CoA
-
Secale cereale naringenin chalcone + CoA + CO2
-
?

Subunits

Subunits Comment Organism
dimer 1 * 43000 + 1 * 44000, SDS-PAGE Secale cereale

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
caffeoyl-CoA Secale cereale
8
-
4-coumaroyl-CoA Secale cereale