Regulation of Newly Evolved Enzymes II. the EBG Repressor

AUTOR(ES)
RESUMO

The ebg (evolved β-galactosidase) regulatory locus has been mapped. The map order is argG–ebgA–ebgR–tolC–metC , and there is 1.6% recombination between ebgR and ebgA . Studies with ebgR-/ebgR+ merdiploids have shown that ebgR- is recessive, and it is concluded that the synthesis of ebg enzyme is under negative control.

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