Sodium-phosphate transport protein 2B, Na(+)-dependent phosphate cotransporter 2B, NaPi3b, Sodium/phosphate cotransporter 2B, Na(+)/Pi cotransporter 2B, NaPi-2b, Solute carrier family 34 member 2
Primary ID
O95436
Links
- -
Type
protein
Relations
2
Function
May be involved in actively transporting phosphate into cells via Na(+) cotransport. It may be the main phosphate transport protein in the intestinal brush border membrane. May have a role in the synthesis of surfactant in lungs' alveoli.
In vivo and in vitro studies showed that egf treatment decreased intestinal napi-iib mrna abundance by _50%, suggesting possible transcriptional regulation.
Three families of NPCs have been reported to date. The type I family consists of a single species (NaPi-1), which has thus far been found only in rabbit kidney.28 The type II family consists of six species homologues, NaPi 2 to 7, that are expressed predominantly in renal epithelial tissues.The type III family is the most recently identified and consists of two members, Pit-1 (also called Glvr-1) and Pit-2 (also called Ram-1).34