A molecular dual carriageway

Abstract

In order to enter a cell, an ammonium ion must first dissociate to form an ammonia molecule and a hydrogen ion (a proton), which then pass through the cell membrane separately and recombine inside.

Keywords

• nitrosomonas europaea
• ammonium transporter
• rhesus protein
• transport selectivity
• SSME
• Saccharomyces cerevisiae