Presence of a third sucrose hydrolyzing enzyme in Bacillus subtilis: constitutive levanase synthesis by mutants of Bacillus subtilis Marburg 168. |
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| Authors: | F Kunst M Steinmetz J A Lepesant R Dedonder |
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| Affiliation: | Département de Biochimie Cellulaire, Institut de Recherche en Biologie Moléculaire, C.N.R.S. et Université Paris VII, Tour 43, 2 place Jussieu, 75221 Paris Cedex 05 (France) |
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| Abstract: | ![]()
A beta-D-fructofuranosidase -- called levanase -- capable of the hydrolysis of sucrose, inulin and levans has been identified in Bacillus subtilis Marburg. This enzyme can not be detected in strain 168. However, sacL mutations -- mapped on the chromosome of strain 168 between the pheA and aroD reference markers -- lead to constitutive levanase synthesis. This synthesis is repressed by carbon sources such as glucose, glycerol or sucrose. |
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| Keywords: | To whom all correspondence should be addressed. |
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