| 摘要 |
<p>The invention relates to nucleic acids that encode a secondary transporter that transports citrate or the complex of citrate and metal ions or metal salt ions. These nucleic acids can be functionally expressed in host cells such as E. coli and Bacillus, or other host cells. The transporter proteins encoded by the nucleic acids of the invention and host cells or biological membranes comprising the proteins facilitate and enhance the removal of heavy metals from compositions such as waste, waste disposal sites, metal ores.</p> |
