Enzyme Reaction Rates at Limited Water Activities
- 22 December 1967
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 158 (3808) , 1569-1570
- https://doi.org/10.1126/science.158.3808.1569
Abstract
A well-mixed powder consisting of dry urea and urease exposed to air containing discrete amounts of water vapor showed a release of carbon-14 dioxide above 60-percent relative humidity. The relative activity of urease followed the water-vapor adsorption isotherm of urease. The minimum amount of water required for the reaction observed was 1.3 moles per mole of side-chain polar groups of the urease protein.Keywords
This publication has 3 references indexed in Scilit:
- Studies on protein multimersArchives of Biochemistry and Biophysics, 1967
- Enzymic Reactions in Foods of Low Moisture ContentPublished by Elsevier ,1963
- Sorption of water vapor by proteins and polymers: A reviewJournal of Polymer Science, 1951