Hydrogen cyanide
Hydrogen cyanide (with the historical common name of Prussic acid) is a chemical compound with chemical formula HCN. It is a colorless, extremely poisonous liquid that boils slightly above room temperature at 26 °C (79 °F). Hydrogen cyanide is a linear molecule, with a triple bond between carbon and nitrogen. A minor tautomer of HCN is HNC, hydrogen isocyanide. Hydrogen cyanide is weakly acidic with a pKa of 9.2. It partly ionizes in water solution to give the cyanide anion, CN. (Wikipedia)
| ID | EC Number | Name |
|---|---|---|
| KEGG:R00152 | 3.5.5.- | hydrogen cyanide aminohydrolase |
| KEGG:R01408 | 4.2.1.66 | formamide hydro-lyase (cyanide-forming) |
| KEGG:R01410 | C01326 + C00084 + C00014<=>C05714 + C00001 | |
| KEGG:R01553 | 4.1.2.46 | acetone-cyanohydrin acetone-lyase (cyanide-forming) |
| KEGG:R01650 | C00232 + C01326 + C00014<=>C05715 + C00001 | |
| KEGG:R01767 | 4.1.2.10 | mandelonitrile benzaldehyde-lyase (cyanide-forming) |
| KEGG:R02676 | 4.1.2.11 | 4-hydroxymandelonitrile hydroxybenzaldehyde-lyase |
| KEGG:R03524 | 4.4.1.9 | L-cysteine hydrogen-sulfide-lyase (adding HCN) |
| KEGG:R05704 | 1.4.99.5 | glycine:acceptor oxidoreductase (hydrogen-cyanide-forming) |
| KEGG:R07779 | 1.14.13.50 | bromoxynil,NADPH:oxygen oxidoreductase |
| KEGG:R08511 | 2.5.1.18 | R-nitrile:glutathione R-transferase |
| KEGG:R09358 | 4.1.2.46 | (2R)-2-hydroxy-2-methylbutanenitrile butan-2-one-lyase (cyanide forming) |
| KEGG:R11813 | 1.14.19.52 | 2-(cystein-S-yl)-2-(1H-indol-3-yl)-acetonitrile,[reduced NADPH---hemoprotein reductase]:oxygen oxidoreductase (camalexin-forming) |
| KEGG:R11814 | 1.14.19.52 | C21719 + C03024 + C00007<=>C21722 + C01326 + C03161 + 2 C00001 |
| BioCyc:THIOSULFATE-SULFURTRANSFERASE-RXN | 2.8.1.1 | S2O3 + HCN --> HSCN + SO3 + 2 PROTON |
| Rhea:RHEA:10453 | 2-(L-cystein-S-yl)-2-(1H-indol-3-yl)-acetonitrile + reduced [NADPH—hemoprotein reductase] + O2 => (R)-dihydrocamalexate + hydrogen cyanide + oxidized [NADPH—hemoprotein reductase] + 2 H2O + 2 H+ | |
| Rhea:RHEA:10454 | (R)-dihydrocamalexate + hydrogen cyanide + oxidized [NADPH—hemoprotein reductase] + 2 H2O + 2 H+ => 2-(L-cystein-S-yl)-2-(1H-indol-3-yl)-acetonitrile + reduced [NADPH—hemoprotein reductase] + O2 | |
| Rhea:RHEA:10455 | 2-(L-cystein-S-yl)-2-(1H-indol-3-yl)-acetonitrile + reduced [NADPH—hemoprotein reductase] + O2 <=> (R)-dihydrocamalexate + hydrogen cyanide + oxidized [NADPH—hemoprotein reductase] + 2 H2O + 2 H+ | |
| Rhea:RHEA:11933 | 2-hydroxy-2-methylpropanenitrile => acetone + hydrogen cyanide | |
| Rhea:RHEA:11934 | acetone + hydrogen cyanide => 2-hydroxy-2-methylpropanenitrile | |
| Rhea:RHEA:11935 | 2-hydroxy-2-methylpropanenitrile <=> acetone + hydrogen cyanide | |
| Rhea:RHEA:15822 | 1.4.99.5 | glycine + 2 A => hydrogen cyanide + 2 AH2 + CO2 |
| Rhea:RHEA:15823 | 1.4.99.5 | hydrogen cyanide + 2 AH2 + CO2 => glycine + 2 A |
| Rhea:RHEA:15824 | 1.4.99.5 | glycine + 2 A <=> hydrogen cyanide + 2 AH2 + CO2 |
| Rhea:RHEA:15978 | 4.1.2.11 | (S)-4-hydroxymandelonitrile => 4-hydroxybenzaldehyde + hydrogen cyanide |
| Rhea:RHEA:15979 | 4.1.2.11 | 4-hydroxybenzaldehyde + hydrogen cyanide => (S)-4-hydroxymandelonitrile |
| Rhea:RHEA:15980 | 4.1.2.11 | (S)-4-hydroxymandelonitrile <=> 4-hydroxybenzaldehyde + hydrogen cyanide |
| Rhea:RHEA:16114 | 1.16.1.6 | 2 cob(II)alamin-[cyanocobalamin reductase] + 2 hydrogen cyanide + NADP+ => 2 cyanocob(III)alamin + 2 apo-[cyanocobalamin reductase] + NADPH + H+ |
| Rhea:RHEA:16115 | 1.16.1.6 | 2 cyanocob(III)alamin + 2 apo-[cyanocobalamin reductase] + NADPH + H+ => 2 cob(II)alamin-[cyanocobalamin reductase] + 2 hydrogen cyanide + NADP+ |
| Rhea:RHEA:16116 | 1.16.1.6 | 2 cob(II)alamin-[cyanocobalamin reductase] + 2 hydrogen cyanide + NADP+ <=> 2 cyanocob(III)alamin + 2 apo-[cyanocobalamin reductase] + NADPH + H+ |