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ARL1

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For Research Use Only. Not For Clinical Use.


The protein encoded by this gene belongs to the ARL (ADP-ribosylation factor-like) family of proteins, which are structurally related to ADP-ribosylation factors (ARFs). ARFs, described as activators of cholera toxin (CT) ADP-ribosyltransferase activity, regulate intracellular vesicular membrane trafficking, and stimulate a phospholipase D (PLD) isoform. Although, ARL proteins were initially thought not to activate CT or PLD, later work showed that they are weak stimulators of PLD and CT in a phospholipid dependent manner. Alternative splicing results in multiple transcript variants encoding different isoforms.
Predicted location

Intracellular

Single cell type specificity

Low cell type specificity

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

The GTP-bound form interacts with GOLGA1 (By similarity). The GTP-bound form interacts with GOLGA4 and RGPD8. The GTP-bound form directly interacts with ARFIP2 (PubMed:11303027, PubMed:21239483, PubMed:22679020). Binds to SCOC, preferentially in its GTP-bound form. May interact with UNC119 (PubMed:11303027, PubMed:14580338). Interacts with ARFIP1; this interaction directs ARFIP1 to the trans-Golgi membranes (PubMed:21239483, PubMed:22981988). Interacts with ARFGEF1 (via N-terminus) (PubMed:27436755, PubMed:27373159).

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