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Literature summary extracted from

  • Ikegami, F.; Takayama, K.; Kurihara, T.; Horiuchi, S.; Tajima, C.; Shirai, R.; Murakoshi, I.
    Purification and properties of beta-cyano-L-alanine synthase from Vicia angustifolia (1989), Phytochemistry, 28, 2285-2291.
No PubMed abstract available

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.4.1.9 0.18
-
KCN
-
Lupinus sp.
4.4.1.9 0.5
-
cyanide
-
Vicia sativa subsp. nigra
4.4.1.9 0.66
-
2-mercaptoethanol
-
Lupinus sp.
4.4.1.9 0.87
-
cysteine
-
Lupinus sp.
4.4.1.9 3.6
-
L-cysteine
-
Vicia sativa subsp. nigra
4.4.1.9 10
-
2-mercaptoethanol
-
Lupinus sp.
4.4.1.9 55
-
KCN
-
Lupinus sp.

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
4.4.1.9 52000 53000 gel filtration Lupinus sp.
4.4.1.9 54000
-
gel filtration Vicia sativa subsp. nigra

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
4.4.1.9 L-cysteine + HCN Vicia sativa subsp. nigra
-
?
-
?
4.4.1.9 L-cysteine + HCN Lupinus sp. detoxification of cyanide in plants and first step of L-asparagine biosynthesis ?
-
?

Organism

EC Number Organism UniProt Comment Textmining
4.4.1.9 Lupinus sp.
-
-
-
4.4.1.9 Vicia sativa subsp. nigra
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
4.4.1.9
-
Vicia sativa subsp. nigra

Source Tissue

EC Number Source Tissue Comment Organism Textmining
4.4.1.9 seed
-
Vicia sativa subsp. nigra
-
4.4.1.9 seedling
-
Lupinus sp.
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
4.4.1.9 120
-
-
Vicia sativa subsp. nigra

Storage Stability

EC Number Storage Stability Organism
4.4.1.9 stable at -20°C Lupinus sp.

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.4.1.9 3-chloro-L-alanine + HCN
-
Lupinus sp. ?
-
ir
4.4.1.9 L-cysteine + 2-mercaptoethanol
-
Lupinus sp. ?
-
?
4.4.1.9 L-cysteine + HCN
-
Lupinus sp. H2S + L-3-cyanoalanine
-
ir
4.4.1.9 L-cysteine + HCN
-
Vicia sativa subsp. nigra ?
-
?
4.4.1.9 L-cysteine + HCN detoxification of cyanide in plants and first step of L-asparagine biosynthesis Lupinus sp. ?
-
?
4.4.1.9 L-cysteine + KCN
-
Lupinus sp. L-3-cyanoalanin + K2S
-
?
4.4.1.9 L-cysteine + methanethiol
-
Vicia sativa subsp. nigra S-methyl-L-cysteine + ?
-
?
4.4.1.9 additional information
-
Lupinus sp. ?
-
?
4.4.1.9 additional information
-
Vicia sativa subsp. nigra ?
-
?

Subunits

EC Number Subunits Comment Organism
4.4.1.9 monomer
-
Lupinus sp.

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.4.1.9 8.8 9.5
-
Lupinus sp.
4.4.1.9 9.4 9.5
-
Vicia sativa subsp. nigra

Cofactor

EC Number Cofactor Comment Organism Structure
4.4.1.9 pyridoxal 5'-phosphate firmly bound Lupinus sp.