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Annu Rev Entomol. 2000;45:111-20.

Amino acid transport in insects.

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Department of Biology, Temple University, Philadelphia, Pennsylvania 19122, USA.


Most insect cell membranes seem to contain uniporters that facilitate the diffusion of amino acids into and out of the cells. In addition to these passive diffusion systems, all but one of the insect tissues studied to date seem to contain at least one amino acid-cation symport system that allows their cells to accumulate certain amino acids from the extracellular medium. cDNAs encoding three such symporters have very recently been cloned and sequenced. The deduced amino acid sequence of each insect symporter was determined to be homologous to that of symporters mediating the transport of the same or related substrates in mammalian tissues.

[Indexed for MEDLINE]

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