Related Experiment Video
Updated: Aug 12, 2026

Method for Labeling Transcripts in Individual Escherichia coli Cells for Single-molecule Fluorescence In Situ Hybridization Experiments
Published on: December 21, 2017
Fructose transport by Escherichia coli
1Department of Biochemistry, University of Cambridge, U.K.
Abstract:
The utilization of fructose by Escherichia coli involves, as first step, the uptake of the sugar, normally via the phosphoenolpyruvate-dependent phosphotransferase system (PTS). This fructose-specific PTS differs in several ways from that effecting the uptake of other sugars that also possess the 3,4,5-D-arabino-hexose configuration: these differences are discussed. Mutants that lack the genes ptsI and ptsH, which specify components of the PTS common to most PT-sugars, can mutate further to regain the ability to utilize fructose when this is present in relatively high concentration (i.e. greater than 2 mM) in the medium. Some of the properties of this unusual uptake system is discussed.
More Related Videos
Related Concept Videos
Secondary Active Transport
Membrane Proteins
Secondary Active Transport
Transcellular Transport of Solutes
Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Carbohydrate Absorption
After being swallowed, the partially digested carbohydrates mix with gastric secretions in the stomach. However, the acidic environment...

