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Literature summary for 4.4.1.9 extracted from

  • Maruyama, A.; Ishizawa, K.; Takagi, T.
    Purification and characterization of beta-cyanoalanine synthase and cysteine synthases from potato tubers: are beta-cyanoalanine synthase and mitochondrial cysteine synthase same enzyme? (2000), Plant Cell Physiol., 41, 200-208.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.235
-
CN- pH 8.5 Solanum tuberosum
1.3
-
O-acetyl-L-serine pH 8.5 Solanum tuberosum
2.82
-
L-cysteine pH 8.5 Solanum tuberosum
9.51
-
Sulfide pH 8.5 Solanum tuberosum

Localization

Localization Comment Organism GeneOntology No. Textmining

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
37000
-
2 * 37000, SDS-PAGE Solanum tuberosum
54000
-
gel filtration Solanum tuberosum

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-cysteine + HCN Solanum tuberosum
-
sulfide + L-3-cyanoalanine
-
?
O-acetyl-L-serine + sulfide Solanum tuberosum
-
L-cysteine + acetate
-
?

Organism

Organism UniProt Comment Textmining
Solanum tuberosum
-
cv. Danshaku
-

Purification (Commentary)

Purification (Comment) Organism
80% acetone, ammonium sulfate, DEAE Sephacel, Mono Q, Resource PHE, preparative electrophoresis, TSK gel 3000 Solanum tuberosum

Source Tissue

Source Tissue Comment Organism Textmining
tuber
-
Solanum tuberosum
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
12830
-
-
Solanum tuberosum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-cysteine + HCN
-
Solanum tuberosum sulfide + L-3-cyanoalanine
-
?
O-acetyl-L-serine + sulfide
-
Solanum tuberosum L-cysteine + acetate
-
?

Subunits

Subunits Comment Organism
dimer 2 * 37000, SDS-PAGE Solanum tuberosum

Synonyms

Synonyms Comment Organism
beta-cyanoalanine synthase
-
Solanum tuberosum
CAS
-
Solanum tuberosum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8 9
-
Solanum tuberosum

Cofactor

Cofactor Comment Organism Structure
pyridoxal 5'-phosphate
-
Solanum tuberosum