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Literature summary for 2.3.1.99 extracted from

  • Rhodes, M.J.C.; Wooltorton, L.S.C.
    The enzymic conversion of hydroxycinnamic acids to p-coumarylquinic and chlorogenic acids in tomato fruits (1976), Phytochemistry, 15, 947-951.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
bovine serum albumin not Solanum lycopersicum
EDTA activation Solanum lycopersicum

Inhibitors

Inhibitors Comment Organism Structure
HEPES
-
Solanum lycopersicum
additional information no inhibition by bovine serum albumin, Mg2+ or dithioerythritol Solanum lycopersicum
N-[2-Acetamido]-2-iminodiacetic acid i.e. N-[carbamoylmethyl]iminodiacetic acid or ADA Solanum lycopersicum
Tris/HCl
-
Solanum lycopersicum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.003
-
coumaroyl-CoA
-
Solanum lycopersicum
0.029
-
caffeoyl-CoA
-
Solanum lycopersicum
0.06
-
chlorogenic acid
-
Solanum lycopersicum
0.084
-
CoA
-
Solanum lycopersicum
0.092
-
coumaroylquinate
-
Solanum lycopersicum
0.43
-
quinate with coumaroyl-CoA Solanum lycopersicum
0.63
-
quinate with caffeoyl-CoA Solanum lycopersicum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
additional information Solanum lycopersicum enzyme involved in the biosynthesis of chlorogenic acid ?
-
?

Organism

Organism UniProt Comment Textmining
Solanum lycopersicum
-
var. Eurocross BB
-

Purification (Commentary)

Purification (Comment) Organism
-
Solanum lycopersicum

Source Tissue

Source Tissue Comment Organism Textmining
fruit
-
Solanum lycopersicum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Solanum lycopersicum

Storage Stability

Storage Stability Organism
-20°C, at least 2 months Solanum lycopersicum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-coumaroyl-CoA + quinate best substrate Solanum lycopersicum CoA + 5-O-(4-coumaroyl)quinate
-
r
4-coumaroyl-CoA + quinate coumaric acid, caffeic acid cannot replace coumaroyl-CoA Solanum lycopersicum CoA + 5-O-(4-coumaroyl)quinate
-
r
4-coumaroyl-CoA + quinate poor substrates of the reverse reaction are the 3'- or 4'-coumaroylquinates Solanum lycopersicum CoA + 5-O-(4-coumaroyl)quinate
-
r
4-coumaroyl-CoA + quinate not: glucose Solanum lycopersicum CoA + 5-O-(4-coumaroyl)quinate
-
r
caffeoyl-CoA + quinate
-
Solanum lycopersicum CoA + 5-O-caffeoylquinate i.e. chlorogenic acid r
caffeoyl-CoA + quinate
-
Solanum lycopersicum CoA + chlorogenic acid
-
?
feruloyl-CoA + quinate condensation at 10% the rate of the reaction with coumaroyl-CoA Solanum lycopersicum CoA + O-feruloylquinate
-
r
additional information enzyme involved in the biosynthesis of chlorogenic acid Solanum lycopersicum ?
-
?
p-coumaroyl-CoA + shikimate poor substrate Solanum lycopersicum CoA + 5-O-(p-coumaroyl)shikimate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Solanum lycopersicum