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Literature summary for 4.2.1.27 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

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

KM Value [mM]

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

Organism

Organism UniProt Comment Textmining
Pseudomonas sp.
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Pseudomonas sp.

Specific Activity [micromol/min/mg]

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

Storage Stability

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

Substrates and Products (Substrate)

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

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8
-
-
Pseudomonas sp.

pH Range

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

pH Stability

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