4.2.1.104 additional information - - 210672 4.2.1.104 additional information - activity assay in 0.1 M potassium phosphate buffer at pH 7.5 and 37°C with or without 3 mM NaHCO3, cyanate concentration between 0.2 mM and 2 mM, 0.2 to 1 microgram total protein per milliliter, measurement of NH3 formation 678457 4.2.1.104 additional information - cyanase activity shown in whole-cell extracts of Synechocystis, high level of cyanase activity when grown with nitrate as N source but unable to utilize exogenous cyanate to support O2 evolution in the light 680479 4.2.1.104 additional information - cyanase activity shown in whole-cell extracts of the photoautotrophic Synechococcus sp. strain UTEX 625, ability to utilize cyanate-derived CO2 to support photosynthesis affected 680479 4.2.1.104 additional information - strain 21 of Pseudomonas putida is a more active CN– decomposer than strain 18 of Pseudomonas stutzeri 681808 4.2.1.104 0.01 - in absence of bicarbonate 678457 4.2.1.104 0.038 - purified recombinant mutant E94L, pH 7.7, 27°C 716700 4.2.1.104 0.04 - purified recombinant mutant S117A, pH 7.7, 27°C 716700 4.2.1.104 0.047 - complemented deficient Escherichia coli cells 651632 4.2.1.104 0.22 - in the presence of 3 mM bicarbonate and 2 mM cyanate 678457 4.2.1.104 0.303 - purified recombinant enzyme, pH 4.8, 27°C 716700 4.2.1.104 0.43 - purified recombinant enzyme, pH 7.4, 55°C 713844 4.2.1.104 0.633 - purified recombinant enzyme, pH 5.7, 27°C 716700 4.2.1.104 0.75 - - 681808 4.2.1.104 0.75 - activity determined every 15 to 30 min in the presence of 2 mM KCNO and 2 mM HCO3- by formation of NH4+, absent activity if bacteria are grown with NH4 indicates inducible synthesis of cyanase 681808 4.2.1.104 0.8 - purified recombinant enzyme, pH 7.4, 4°C 713844 4.2.1.104 1.26 - - 681808 4.2.1.104 1.26 - pH optimum 8.1, activity determined every 15 to 30 min in the presence of 2 mM KCNO and 2 mM HCO3- by formation of NH4+, pH values of 7.0, 8.0 and 9.1, absent activity if bacteria are grown with NH4+ indicates inducible synthesis of cyanase 681808 4.2.1.104 2.286 - purified recombinant wild-type enzyme, pH 7.7, 27°C 716700 4.2.1.104 5.56 - purified recombinant enzyme, pH 7.4, 26°C 713844 4.2.1.104 1666.7 - measured by micromol ammonia/mg/s, transgenic Arabidopsis thaliana plants expressing the enzyme, pH and temperature not specified in the publication 747661