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Literature summary for 3.1.1.49 extracted from

  • Clauss, K.; Baumert, A.; Nimtz, M.; Milkowski, C.; Strack, D.
    Role of a GDSL lipase-like protein as sinapine esterase in Brassicaceae (2008), Plant J., 53, 802-813.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Nicotiana benthamiana leaves Brassica napus

Inhibitors

Inhibitors Comment Organism Structure
Phenylmethylsulfonylfluoride 50% inhibition at about 8 mM PMSF Brassica napus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0026
-
Sinapoylcholine 30°C, pH 8.5 Brassica napus
0.011
-
Cinnamoylcholine 30°C, pH 8.5 Brassica napus
0.101
-
3-phenylpropionylcholine 30°C, pH 8.5 Brassica napus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
44000
-
1 * 44000, SDS-PAGE Brassica napus
47000
-
gel filtration Brassica napus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
sinapoylcholine + H2O Brassica napus role for the GDSL lipase-like BnSCE3/BnLIP2 as a sinapine esterase, catalyzing hydrolysis of sinapine during seed germination, leading, via 1-O-sinapoyl-beta-glucose, to sinapoyl-L-malate in the seedlings sinapic acid + choline
-
?

Organism

Organism UniProt Comment Textmining
Brassica napus Q3ZFI4
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Brassica napus

Source Tissue

Source Tissue Comment Organism Textmining
seedling
-
Brassica napus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
8.3
-
-
Brassica napus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3-phenylpropionylcholine + H2O
-
Brassica napus 3-phenylpropionate + choline
-
?
4-coumaroylcholine + H2O 20% of activity with sinapoylcholine Brassica napus coumaric acid + choline
-
?
benzoylcholine + H2O 18% of activity with sinapoylcholine Brassica napus benzoate + choline
-
?
caffeoylcholine 25% of activity with sinapoylcholine Brassica napus caffeic acid + choline
-
?
cinnamoylcholine + H2O 51% of activity with sinapoylcholine Brassica napus cinnamic acid + choline
-
?
feruloylcholine + H2O 37% of activity with sinapoylcholine Brassica napus ferulic acid + choline
-
?
sinapoylcholine + H2O
-
Brassica napus sinapic acid + choline
-
?
sinapoylcholine + H2O role for the GDSL lipase-like BnSCE3/BnLIP2 as a sinapine esterase, catalyzing hydrolysis of sinapine during seed germination, leading, via 1-O-sinapoyl-beta-glucose, to sinapoyl-L-malate in the seedlings Brassica napus sinapic acid + choline
-
?

Subunits

Subunits Comment Organism
monomer 1 * 44000, SDS-PAGE Brassica napus

Synonyms

Synonyms Comment Organism
BnLIP2
-
Brassica napus
BnSCE3
-
Brassica napus
BnSCE3/BnLIP2
-
Brassica napus