Structure of the malB Region in Escherichia Coli K12. II. Genetic Map of the malE,F,G Operon

Mol Gen Genet. 1979 Jul 24;174(3):249-59. doi: 10.1007/BF00267797.


Starting with a strain containing a malK-lacZ fusion, a series of lambda plaque-forming phages which carry varying amounts of the malE,F operon have been isolated. We have used these phages to construct a deletion map of the malE,F operon. The construction of this deletion map has led to the identification of a new gene, malG. The malG gene is located distal to malF. The malG gene product is a protein required for the active transport of maltose and maltodextrins.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Biological Transport
  • Chromosome Mapping
  • Chromosomes, Bacterial
  • Escherichia coli / genetics*
  • Escherichia coli / metabolism
  • Genes*
  • Maltose / genetics*
  • Maltose / metabolism
  • Operon*


  • Maltose