Cell Transporter 1 (image) University of Wisconsin-Madison Share Print E-Mail Caption A transporter protein -- called EmrE, shown in purple and green -- in the cell membrane of E. coli bacteria can be switched between two conformations in order to pump molecules (such as antibacterial drugs) out of or into the cell. Credit Image courtesy of Katherine Henzler-Wildman/UW-Madison. Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.