ID 6.3.4.6 DE urea carboxylase. AN ATP--urea amidolyase. AN UALase. AN UCA. AN urea amidolyase. AN urea carboxylase (hydrolyzing). AN urease (ATP-hydrolyzing). CA urea + hydrogencarbonate + ATP = urea-1-carboxylate + ADP + phosphate + CA H(+). CC -!- A biotinyl-protein. CC -!- The yeast enzyme (but not that from green algae) is bifunctional CC (resulting from gene fusion) and also catalyzes the reaction of CC EC 3.5.1.54, thus bringing about the hydrolysis of urea to CO2 and CC NH3. CC -!- cf. EC 6.3.4.26. CC -!- Formerly EC 3.5.1.45. DR A5H0J2, DUR1_LACKL ; P32528, DUR1_YEAST ; P38095, LAMA_EMENI ; //