Journal
CURRENT OPINION IN NEPHROLOGY AND HYPERTENSION
Volume 10, Issue 5, Pages 555-561Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00041552-200109000-00002
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The type IIa sodium/inorganic phosphate co-transporter is the rate-limiting inorganic phosphate transport pathway in renal brush-border membranes, and is thus a key player in overall inorganic phosphate homeostasis. Its regulation is mostly associated with membrane retrieval/reinsertion (traffic) of the transport protein. This membrane traffic is controlled by specific 'motifs' at the level of the transporter protein and probably involves interacting proteins (e.g. for scaffolding, regulation or sorting). The intracellular signaling mechanisms (e.g. the involvement of kinases) and the involvement of the cytoskeleton are not yet understood. Hereditary alterations in renal inorganic phosphate handling can be associated with factors controlling the expression of the brush-border type IIa sodium/inorganic phosphate co-transporter. Curr Opin Nephrol Hypertens 10:555-561, (C) 2001 Lippincott Williams & Wilkins.
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