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AnEscherichia colimutant exhibiting temperature-sensitive ATP synthesis

Authors
Journal
Biochemical and Biophysical Research Communications
0006-291X
Publisher
Elsevier
Publication Date
Volume
138
Issue
1
Identifiers
DOI: 10.1016/0006-291x(86)90248-2

Abstract

Abstract A mutant strain SM434 ( ttr-3 ) of Escherichia coli that exhibits a temperature-sensitive Unc (succinate-nonutilizing) phenotype was characterized. The mutant allele ttr-3 was not linked to the ilv A gene, but was complemented by F111 carrying 81 min – 91 min of the E. coli chromosome. The mutant strain SM434 exhibited resistance to N,N′-dicyclohexylcarbodiimide (DCCD) and a temperature-sensitive phenotype at the level of ATP synthesis, compatible with that of cell growth. These findings indicate that the mutant strain SM434 could carry a mutation ( ttr-3 ) in an unknown gene responsible for the energy-transduction system.

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