The BioGRID | PUBLICATION VIEW

	FEBS Lett. Oct (1999); 459(1):69-74
A novel ADP-ribosylation like factor (ARL-6), interacts with the protein-conducting channel SEC61beta subunit.
Ingley E, Williams JH, Walker CE, Tsai S, Colley S, Sayer MS, Tilbrook PA, Sarna M, Beaumont JG, Klinken SP
Laboratory for Cancer Medicine, Department of Biochemistry, The University of Western Australia and Royal Perth Hospital, Perth, W.A., Australia.
Abstract: We report here the isolation of a new member of the ADP-ribosylation factor (ARF)-like family (ARL-6) present in the J2E erythroleukemic cell line, but not its myeloid variants. Consistent with this lineage-restricted expression, ARL-6 mRNA increased with erythropoietin-induced maturation of J2E cells, and decreased with interleukin 6-induced differentiation of M1 monoblastoid cells. In tissues, ARL-6 mRNA was most abundant in brain and kidney. While ARL-6 protein was predominantly cytosolic, its membrane association increased following exposure to GTP-gammaS, like many members of the ARF/ARL family. Using the yeast two-hybrid system, six molecules which interact with ARL-6 were identified including SEC61beta, a subunit of the heterotrimeric protein conducting channel SEC61p. Co-immunoprecipitation of ARL-6 confirmed a stable association between ARL-6 and SEC61beta in COS cells. These results demonstrate that ARL-6, a novel member of the ADP-ribosylation factor-like family, interacts with the SEC61beta subunit.
[PUBMED: 10508919]