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Literature summary extracted from

  • Yamada, E.W.; Jakoby, W.B.
    Enzymatic utilization of acetylenic compounds. II. Acetylenemonocarboxylc acid hydrase (1959), J. Biol. Chem., 234, 941-945.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.2.1.27 Cl-
-
Pseudomonas sp.
4.2.1.27 diethanolamine
-
Pseudomonas sp.
4.2.1.27 ethanolamine
-
Pseudomonas sp.
4.2.1.27 NaCN
-
Pseudomonas sp.
4.2.1.27 NO3-
-
Pseudomonas sp.
4.2.1.27 PCMB
-
Pseudomonas sp.
4.2.1.27 SO42-
-
Pseudomonas sp.
4.2.1.27 Tris
-
Pseudomonas sp.

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.2.1.27 40.08
-
propynoate
-
Pseudomonas sp.

Organism

EC Number Organism UniProt Comment Textmining
4.2.1.27 Pseudomonas sp.
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.2.1.27
-
Pseudomonas sp.

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4.2.1.27 38
-
-
Pseudomonas sp.

Storage Stability

EC Number Storage Stability Organism
4.2.1.27 -15°C, stable at Pseudomonas sp.
4.2.1.27 3°C, pH 7-8, 18 h, enzyme in dilute solution, 18 h, 20% loss of activity Pseudomonas sp.

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.2.1.27 propynoate + H2O i.e. acetylenemonocarboxylate Pseudomonas sp. 3-oxopropanoate
-
?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.2.1.27 8
-
-
Pseudomonas sp.

pH Range

EC Number pH Minimum pH Maximum Comment Organism
4.2.1.27 6.4 8.8 pH 6.4: about 55% of maximal activity, pH 8.8: about 35% of maximal activity Pseudomonas sp.

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
4.2.1.27 7
-
3°C, 18 h, enzyme in dilute solution, 18 h, 20% loss of activity Pseudomonas sp.