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Biochem J. 2011 Jun 1;436(2):193-211. doi: 10.1042/BJ20101912.

The role of amino acid transporters in inherited and acquired diseases.

Author information

1
Research School of Biology, Australian National University, Canberra, ACT 0200, Australia. stefan.broer@anu.edu.au

Abstract

Amino acids are essential building blocks of all mammalian cells. In addition to their role in protein synthesis, amino acids play an important role as energy fuels, precursors for a variety of metabolites and as signalling molecules. Disorders associated with the malfunction of amino acid transporters reflect the variety of roles that they fulfil in human physiology. Mutations of brain amino acid transporters affect neuronal excitability. Mutations of renal and intestinal amino acid transporters affect whole-body homoeostasis, resulting in malabsorption and renal problems. Amino acid transporters that are integral parts of metabolic pathways reduce the function of these pathways. Finally, amino acid uptake is essential for cell growth, thereby explaining their role in tumour progression. The present review summarizes the involvement of amino acid transporters in these roles as illustrated by diseases resulting from transporter malfunction.

PMID:
21568940
DOI:
10.1042/BJ20101912
[Indexed for MEDLINE]
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