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FEBS Lett. Sep (2004); 575(1):64-70
ALS2CL, the novel protein highly homologous to the carboxy-terminal half of ALS2, binds to Rab5 and modulates endosome dynamics.
Hadano S, Otomo A, Suzuki-Utsunomiya K, Kunita R, Yanagisawa Y, Showguchi-Miyata J, Mizumura H, Ikeda JE
Department of Molecular Neuroscience, The Institute of Medical Sciences, Tokai University, Isehara, Kanagawa 259-1193, Japan.
Abstract: ALS2, the causative gene product for juvenile recessive amyotrophic lateral sclerosis (ALS2), is a guanine-nucleotide exchange factor for the small GTPase Rab5. Here, we report a novel ALS2 homologous gene, ALS2 C-terminal like (ALS2CL), which encodes a 108-kD ALS2CL protein. ALS2CL exhibited a specific but a relatively weak Rab5-GEF activity with accompanying rather strong Rab5-binding properties. In HeLa cells, co-expression of ALS2CL and Rab5A resulted in a unique tubulation phenotype of endosome compartments with significant colocalization of ALS2CL and Rab5A. These results suggest that ALS2CL is a novel factor modulating the Rab5-mediated endosome dynamics in the cells.
[PUBMED: 15388334] Download Biogrid Interactions in a variety of formats including PSI FormatPUBMED
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Chris Stark, Bobby-Joe Breitkreutz, Teresa Reguly, Lorrie Boucher, Ashton Breitkreutz, Mike Tyers.
Nucleic Acids Res. Jan 1;34:D535-9.