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ARF6

This gene encodes a member of the human ARF gene family, which is part of the RAS superfamily. The ARF genes encode small guanine nucleotide-binding proteins that stimulate the ADP-ribosyltransferase activity of cholera toxin and play a role in vesicular trafficking and as activators of phospholipase D. The product of this gene is localized to the plasma membrane, and regulates vesicular trafficking, remodelling of membrane lipids, and signaling pathways that lead to actin remodeling. A pseudogene of this gene is located on chromosome 7.
Protein class

RAS pathway related proteins

Predicted location

Intracellular

Single cell type specificity

Cell type enhanced (Langerhans cells, Urothelial cells, Suprabasal keratinocytes)

Immune cell specificity

Low immune cell specificity

Cell line specificity

Low cell line specificity

Interaction

Interacts (when activated) with GGA1, GGA2 and GGA3; the interaction is required for proper subcellular location of GGA1, GGA2 and GGA3 (PubMed:11950392). Interacts with PIP5K1C (PubMed:12847086). Interacts with USP6 (via Rab-GAP TBC domain) (PubMed:15509780). Interacts with RAB11FIP3 and RAB11FIP4 (PubMed:16148947, 17030804, 17628206). Interacts with HERC1 (PubMed:15642342). Interacts with ARHGAP21 (PubMed:15793564). Interacts with ASAP3; the interaction is stabilized by calcium ions (PubMed:16737952, 20510928). Interacts with NCS1/FREQ at the plasma membrane (PubMed:17555535). Interacts with TBC1D24 (PubMed:20727515). Interacts with ECPAS (PubMed:20682791). Interacts with MICALL1 (PubMed:21951725). Interacts with SPAG9 homodimers, forming heterotetramers (PubMed:19644450). Interacts with CYTH3 (PubMed:23940353). Interacts with ASAP2 (By similarity). Interacts with UACA (By similarity). Interacts with KIF23, forming heterodimers and heterotetramers (By similarity). Interacts with C9orf72 (By similarity). Interacts (GTP-bound form) with TJAP1/PILT (By similarity). (Microbial infection) Interacts with the V. cholerae enterotoxin subunit A1; this causes a conformation change so that the toxin can bind NAD and catalyze the ADP-ribosylation of Gs alpha. (Microbial infection) Interacts with EspG from enteropathogenic E. coli. (Microbial infection) Identified in a complex with RAB1A and EspG from enteropathogenic E. coli.

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