Gram-negative bacteria possess an outer membrane layer which constrains uptake and
secretion of solutes and polypeptides. To overcome this barrier, bacteria have developed …

Bacteria solve the iron supply problem caused by the insolubility of Fe3+ by synthesizing
iron-complexing compounds, called siderophores, and by using iron sources of their hosts …

Aquaporins are a family of water and small molecule channels found in organisms ranging
from bacteria to animals. One of these channels, the E. coli protein aquaporin Z (AqpZ), has …

The glucose transporters (GLUT/SLC2A) are members of the major facilitator superfamily.
Here, we generated a three-dimensional model for Glut1 using a two-step strategy: 1), GlpT …

To explore the structural basis of the unique selectivity spectrum and conductance of the
transmembrane channel protein AqpM from the archaeon Methanothermobacter …

On a three-dimensional templated model of GLUT1 (Protein Data Bank code 1SUK), a
molecular recognition program, AUTODOCK 3, reveals nine hexose-binding clusters …

Introduction 3. Role of the outer membrane in uptake 3.1. Barrier properties 3.2. Selective
permeability 3.3. Pseudomonas porins 4. Role of the cytoplasmic membrane in uptake 4.1 …

FhuA and FecA are two examples of energy-coupled outer membrane import proteins of
gram-negative bacteria. FhuA transports iron complexed by the siderophore ferrichrome and …

Various types of channel proteins, broadly named porins, present in the cell membrane of
gram‐negative bacteria have specific functionalities depending on their selectivity toward …

Abstract In Escherichia coli the Fhu, Fep and Fec transport systems are involved in the
uptake of chelated ferric iron-siderophore complexes, whereas in pathogenic strains heme …