PLEKHA3,8 bind PI4P, ARF1

Stable Identifier
Reaction [binding]
Homo sapiens
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Proteins with the plekstrin homology (PH) domain are able to bind specific phosphoinositides. Pleckstrin homology domain-containing family A members 3 and 8 (PLEKHA3 and PLEKHA8 aka FAPP1 and FAPP2) specifically bind phosphoinositide 4-phosphate (PI4P, PtdIns(4)P), a key intermediate in the synthesis of phosphoinositide 4,5-diphosphate (PIP2). PLEKHA3 and 8 are localised to the trans-Golgi network (TGN) where they interact with PI4P and the small GTPase ADP-ribosylation factor (ARF1) through their PH domains and mediate the transport of lipid cargo from the Golgi to the plasma membrane (Godi et al. 1999, Godi et al. 2004).

Literature References
PubMed ID Title Journal Year
10559940 ARF mediates recruitment of PtdIns-4-OH kinase-beta and stimulates synthesis of PtdIns(4,5)P2 on the Golgi complex

Corda, D, Luini, A, Di Tullio, G, Godi, A, Iurisci, C, Pertile, P, Meyers, R, De Matteis, MA, Marra, P

Nat Cell Biol 1999
15107860 FAPPs control Golgi-to-cell-surface membrane traffic by binding to ARF and PtdIns(4)P

Kular, GS, Daniele, T, Alessi, DR, Di Tullio, G, Konstantakopoulos, A, Godi, A, Lucocq, JM, Di Campli, A, De Matteis, MA, Marra, P

Nat Cell Biol 2004
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