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. 2016 Jan 1;27(1):137–152. doi: 10.1091/mbc.E15-09-0650

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© 2016 Tang et al. This article is distributed by The American Society for Cell Biology under license from the author(s). Two months after publication it is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

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FIGURE 8: — Model of Mena–GRASP65 interaction in Golgi ribbon linking. Golgi ministacks are transported to the cell center along microtubules (1). GRASP65 oligomers zipper Golgi cisternae into stacks (2) and tether nearby Golgi stacks into a ribbon (3). Ribbon formation initially requires Mena; GRASP65 recruits Mena to the Golgi, which promotes actin filament elongation (4). The actin fibers then link scattered Golgi stacks and pull them toward each other to form a ribbon (5). On both the cis and the trans faces of the stack, Golgi-associated actin filaments may facilitate membrane deformation for vesicle formation, fission and fusion, and short-range movements (6).