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Information on EC 4.2.1.104 - cyanase

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EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.1 Hydro-lyases
                4.2.1.104 cyanase
IUBMB Comments
This enzyme, which is found in bacteria and plants, is used to decompose cyanate, which can be used as the sole source of nitrogen [6,7]. Reaction (1) can be considered as the reverse of 'carbamate = cyanate + H2O', where this is assisted by reaction with bicarbonate and carbon dioxide (see mechanism above) , and hence is classified in sub-subclass 4.2.1. Bicarbonate functions as a recycling substrate .
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Archaea, Bacteria
Reaction Schemes
+
+
2
=
+
2
Synonyms
atcyn, cyanate hydratase, cyanate lyase, oscyn, cyanate aminohydrolase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
carbamate + H+ = NH3 + CO2
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spontaneous
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cyanate + HCO3- + 2 H+ = NH3 + 2 CO2
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cyanate + HCO3- + H+ = carbamate + CO2
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PATHWAY SOURCE
PATHWAYS
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