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Glutamic dehydrogenase in revertants of am mutants in neurospora

Published online by Cambridge University Press:  14 April 2009

David R. Stadler
David R. Stadler
Affiliation:
Department of Genetics, University of Washington, Seattle, Washington 98105
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Five allelic mutants of Neurospora which lack glutamic dehydrogenase (am mutants) were induced to revert with ultra-violet. The glutamic dehydrogenase produced by the revertants was compared to that of wild-type. Several distinct classes of revertants could be distinguished by these tests. However, genetic analysis showed that all the reversions resulted from events at or near the site of the original am mutation. The spectrum of reversion types depended on the nature of the am mutant employed. One mutant, which produces an am protein believed to be altered in its active site, yielded revertants which were all indistinguishable from wild-type. Another mutant, which produces a protein with a functional active site but altered folding properties, gave at least six classes of revertants which were different from wild-type.

Type
Research Article
Information
Genetics Research , Volume 7 , Issue 1 , February 1966 , pp. 18 - 31
Copyright
Copyright © Cambridge University Press 1966

References

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