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Literature summary for 3.1.2.21 extracted from

  • Pollard, M.R.; Anderson, L.; Fan, C.; Hawkins, D.J.; Davies, H.M.
    A specific acyl-ACP thioesterase implicated in medium-chain fatty acid production in immature cotyledons of Umbellularia californica (1991), Arch. Biochem. Biophys., 284, 306-312.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
NaCl 100 mM, 50% inhibition, fully reversible by dialysis or dilution Umbellularia californica
NEM 5 mM, complete inhibition Umbellularia californica
phosphate 100 mM, 50% inhibition, fully reversible by dialysis or dilution Umbellularia californica

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0023
-
decanoyl-[acyl-carrier protein]
-
Umbellularia californica
0.0036
-
hexadecanoyl-[acyl-carrier protein]
-
Umbellularia californica
0.0067
-
undecanoyl-[acyl-carrier protein] tetradecanoyl-[acyl-carrier protein] Umbellularia californica
0.01
-
octadecenoyl-[acyl-carrier protein]
-
Umbellularia californica
0.0166
-
dodecanoyl-[acyl-carrier protein]
-
Umbellularia californica

Organism

Organism UniProt Comment Textmining
Umbellularia californica
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Umbellularia californica

Source Tissue

Source Tissue Comment Organism Textmining
seed
-
Umbellularia californica
-

Storage Stability

Storage Stability Organism
0-4°C, 20% v/v glycerol or ethylene glycol, approximately 50% of the enzyme activity remains after 24 h Umbellularia californica

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
decanoyl-[acyl-carrier protein] + H2O
-
Umbellularia californica [acyl-carrier protein] + decanoate
-
?
dodecanoyl-[acyl-carrier protein] + H2O
-
Umbellularia californica [acyl-carrier protein] + dodecanoate
-
?
hexadecanoyl-[acyl-carrier protein] + H2O
-
Umbellularia californica [acyl-carrier protein] + hexadecanoate
-
?
Octadecenoyl-[acyl-carrier protein] + H2O
-
Umbellularia californica [Acyl-carrier protein] + octadecenoate
-
?
tetradecanoyl-[acyl-carrier protein] + H2O
-
Umbellularia californica [acyl-carrier protein] + tetradecanoate
-
?
undecanoyl-[acyl-carrier protein] + H2O
-
Umbellularia californica [acyl-carrier protein] + undecanoate
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5 9.5
-
Umbellularia californica

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
10
-
NaCl fully reversible by dialysis or dilution Umbellularia californica
100
-
phosphate fully reversible by dialysis or dilution Umbellularia californica