MIMG 101 Study Guide - Quiz Guide: Antiporter, Periplasm, Agmatine

• School: UCLA
• Department: Microbiology, Immunology, and Molecular Genetics
• Course: MIMG 101
• Professor: G U N S A L U S& B R A D L E Y

Document Summary

Exercise #2 reply form: cell nutrition and nutrient uptake. Establish what category (passive diffusion, facilitated diffusion, active. Establish what class (ion driven - be specific, group translocation, The protein uptakes l-arginine into the cytosol and agmatine into the periplasmic space. It does so through transmembrane active transport (secondary transporter). This transporter is used to survive in very acidic environments. One of three acid resistance strategies includes this transporter, which uses external arginine. Adia decarboxylase and adic arginine:agmatine antiporter are employed to exchange extracellular arginine for intracellular agmatine. How many transmembrane spanning regions does it have (hint: The transporter appears to be embedded in the inner membrane.