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Significance of the Glutamate-139 Residue of the V-Type Na(+)-ATPase NtpK Subunit in Catalytic Turnover Linked with Salt Tolerance of Enterococcus hirae
A Glu139Asp mutant of the NtpK subunit (kE139D) of Enterococcus hirae vacuolar-type ATPase (V-ATPase) lost tolerance to sodium but not to lithium at pH 10. Purified kE139D V-ATPase retained relatively high specific activity and affinity for the lithium ion compared to the sodium ion. The kE139 resid...
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| Autors principals: | , , , , , , |
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| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
American Society for Microbiology
2011
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| Matèries: | |
| Accés en línia: | https://ncbi.nlm.nih.gov/pmc/articles/PMC3133306/ https://ncbi.nlm.nih.gov/pubmed/21602356 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1128/JB.01537-10 |
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