Mechanism of ammonia transport by Amt/MEP/Rh: structure of AmtB at 1.35 A
Khademi, S., O'Connell III, J., Remis, J., Robles-Colmenares, Y., Miercke, L.J.W., Stroud, R.M.(2004) Science 305: 1587-1594
- PubMed: 15361618 
- DOI: 10.1126/science.1101952
- Primary Citation of Related Structures:  
1U77, 1U7C, 1U7G - PubMed Abstract: 
The first structure of an ammonia channel from the Amt/MEP/Rh protein superfamily, determined to 1.35 angstrom resolution, shows it to be a channel that spans the membrane 11 times. Two structurally similar halves span the membrane with opposite polarity ...