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Literature summary for 2.8.3.21 extracted from

  • Engemann, C.; Elssner, T.; Pfeifer, S.; Krumbholz, C.; Maier, T.; Kleber, H.P.
    Identification and functional characterisation of genes and corresponding enzymes involved in carnitine metabolism of Proteus sp. (2005), Arch. Microbiol., 183, 176-189.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Proteus sp.

Organism

Organism UniProt Comment Textmining
Proteus sp. Q8GB19
-
-
Proteus sp. LE138 Q8GB19
-
-

Reaction

Reaction Comment Organism Reaction ID
(E)-4-(trimethylammonio)but-2-enoyl-CoA + L-carnitine = (E)-4-(trimethylammonio)but-2-enoate + L-carnitinyl-CoA sequential bisubstrate mechanism Proteus sp.

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
556.3
-
pH 7.8, 37°C Proteus sp.

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
crotonobetainyl-CoA + L-carnitine
-
Proteus sp. crotonobetaine + L-carnitinyl-CoA
-
?
crotonobetainyl-CoA + L-carnitine
-
Proteus sp. LE138 crotonobetaine + L-carnitinyl-CoA
-
?
gamma-butyrobetainyl-CoA + L-carnitine
-
Proteus sp. gamma-butyrobetaine + L-carnitinyl-CoA
-
?
gamma-butyrobetainyl-CoA + L-carnitine
-
Proteus sp. LE138 gamma-butyrobetaine + L-carnitinyl-CoA
-
?
additional information enzyme CaiB acts as betainyl-CoA transferase specific for carnitine, crotonobetaine, gamma-butyrobetaine and its CoA derivatives. Transferase reaction proceeds, following a sequential bisubstrate mechanism. No substrates: CoA, acetoacetyl-CoA, acetyl-CoA, crotonyl-CoA, hydroxybutyryl-CoA, palmitoyl-CoA, succinyl-CoA Proteus sp. ?
-
?
additional information enzyme CaiB acts as betainyl-CoA transferase specific for carnitine, crotonobetaine, gamma-butyrobetaine and its CoA derivatives. Transferase reaction proceeds, following a sequential bisubstrate mechanism. No substrates: CoA, acetoacetyl-CoA, acetyl-CoA, crotonyl-CoA, hydroxybutyryl-CoA, palmitoyl-CoA, succinyl-CoA Proteus sp. LE138 ?
-
?