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The W148L substitution in the Escherichia coli ammonium channel AmtB increases flux and indicates that the substrate is an ion
The Amt/Mep ammonium channels are trimers in which each monomer contains a long, narrow, hydrophobic pore. Whether the substrate conducted by these pores is NH(3) or NH(4)(+) remains controversial. Substitution of leucine for the highly conserved tryptophan 148 residue at the external opening to Esc...
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| Päätekijät: | , , , , |
|---|---|
| Aineistotyyppi: | Artigo |
| Kieli: | Inglês |
| Julkaistu: |
National Academy of Sciences
2007
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| Aiheet: | |
| Linkit: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2141841/ https://ncbi.nlm.nih.gov/pubmed/17998534 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1073/pnas.0709267104 |
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