INTERACTIONS BETWEEN COLICINOGENIC FACTOR B AND F-TYPE FACTORS: ISOLATION OF A MUTANT F-lac FACTOR INSENSITIVE TO THE EFFECT OF COLICINOGENIC FACTOR B
ABSTRACT An extrachromosomal factor, colicinogenic factor B (colB) inhibits expression of fertility functions of various F-type factors in strains of E. coli K12. Mutant F-lac factors simultaneously became insensitive to all the effects of colB as well as to similar actions exerted by a resistance transfer factor, R fi+. This suggests that a common site or activity necessary for the expression of several F functions is affected by products of both colB and R fi+.
1973 ◽
Vol 54
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pp. 1451-1459
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1982 ◽
Vol 151
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pp. 686-691
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1977 ◽
Vol 131
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pp. 929-942
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Keyword(s):
1964 ◽
Vol 87
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pp. 1339-1345
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1964 ◽
Vol 51
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