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Literature summary for 4.1.2.11 extracted from

  • Bove, C.; Conn, E.E.
    Metabolism of aromatic compounds in higher plants. II. Purification and properties of the oxynitrilase of Sorghum vulgare (1961), J. Biol. Chem., 236, 207-210.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
CuSO4
-
Sorghum bicolor
Fe2(SO4)3
-
Sorghum bicolor
HgCl2
-
Sorghum bicolor
additional information not inhibited by iodoacetamide, p-chloromercuribenzoate, 2,2'-dipyridyl, 1,10-phenanthroline, phenylthiourea, NaCN, FeSO4, Na2S Sorghum bicolor

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.55
-
4-hydroxymandelonitrile
-
Sorghum bicolor

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
4-Hydroxymandelonitrile Sorghum bicolor
-
?
-
?

Organism

Organism UniProt Comment Textmining
Sorghum bicolor
-
i.e. Sorghum vulgare
-

Purification (Commentary)

Purification (Comment) Organism
-
Sorghum bicolor

Source Tissue

Source Tissue Comment Organism Textmining
epicotyl
-
Sorghum bicolor
-
seedling
-
Sorghum bicolor
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Sorghum bicolor

Storage Stability

Storage Stability Organism
-15°C, no loss of activity after 3 months Sorghum bicolor

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
(S)-4-Hydroxymandelonitrile inactive against 2-hydroxymanelonitrile or 3-hydroxymandelonitrile Sorghum bicolor Cyanide + 4-hydroxybenzaldehyde
-
?
(S)-mandelonitrile inactive Sorghum bicolor cyanide + benzaldehyde
-
?
4-Hydroxymandelonitrile
-
Sorghum bicolor ?
-
?
vanillin cyanohydrin 20% the rate of 4-hydroxybenzaldehyde Sorghum bicolor cyanide + vanillin
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35
-
-
Sorghum bicolor

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
35
-
thermal inactivation above Sorghum bicolor
50
-
60% loss of activity after 5 min, protein impurities in crude extract protect Sorghum bicolor

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5
-
-
Sorghum bicolor

pH Range

pH Minimum pH Maximum Comment Organism
3.2 6.3
-
Sorghum bicolor