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Literature summary for 2.6.1.19 extracted from

  • Ricci, L.; Frosini, M.; Gaggelli, N.; Valensin, G.; Machetti, F.; Sgaragli, G.; Valoti, M.
    Inhibition of rabbit brain 4-aminobutyrate transaminase by some taurine analogues: a kinetic analysis (2006), Biochem. Pharmacol., 71, 1510-1519.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
(+/-)piperidine-3-sulfonic acid
-
Oryctolagus cuniculus
2-Aminobenzenesulfonate
-
Oryctolagus cuniculus
2-aminoethane phosphonic acid
-
Oryctolagus cuniculus
2-N-(acetylamino)cyclohexane sulfonic acid
-
Oryctolagus cuniculus
vigabatrin
-
Oryctolagus cuniculus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
12.8
-
4-aminobutanoate at pH 8.4 and 38°C Oryctolagus cuniculus

Organism

Organism UniProt Comment Textmining
Oryctolagus cuniculus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partially Oryctolagus cuniculus

Source Tissue

Source Tissue Comment Organism Textmining
brain
-
Oryctolagus cuniculus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
3.4 units/mg in crude brain homogenate and 51.2 units/mg after 15fold purification Oryctolagus cuniculus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-aminobutanoate + 2-oxoglutarate
-
Oryctolagus cuniculus 4-oxobutanoate + L-glutamate
-
?

Synonyms

Synonyms Comment Organism
GABA-T
-
Oryctolagus cuniculus

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate 0.1 mM Oryctolagus cuniculus

Ki Value [mM]

Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
0.32
-
vigabatrin competitive inhibition at 37°C Oryctolagus cuniculus
0.364
-
(+/-)piperidine-3-sulfonic acid mixed inhibition at 37°C Oryctolagus cuniculus
0.434
-
2-Aminobenzenesulfonate competitive inhibition at 37°C Oryctolagus cuniculus
0.598
-
2-N-(acetylamino)cyclohexane sulfonic acid competitive inhibition at 37°C Oryctolagus cuniculus
1.01
-
2-aminoethane phosphonic acid competitive inhibition at 37°C Oryctolagus cuniculus