The two Dictyostelium autophagy eight proteins, ATG8a and ATG8b, associate with the autophagosome in succession
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71 citations
Cites background from "The two Dictyostelium autophagy eig..."
...discoideum possess 2 Atg8 paralogs (Atg8a and b), which are both good markers of autophagosomes although they play partially nonredundant roles (discussed below).(32) Another useful marker is Atg18, the ortholog of mammalian WIPI2....
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...discoideum cells expressing RFP-Atg8a and GFP-Atg8b showed that Atg8b associates with autophagosomes before ATG8a.(32) In mammals, LC3 subfamily members are involved in the elongation of the phagophore, whereas the GABARAP subfamily seem to be essential for a later stage in maturation....
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...Live cell imaging of D. discoideum cells expressing RFP-Atg8a and GFP-Atg8b showed that Atg8b associates with autophagosomes before ATG8a.32 In mammals, LC3 subfamily members are involved in the elongation of the phagophore, whereas the GABARAP subfamily seem to be essential for a later stage in maturation.71,72 Thus, Atg8b is likely the functional ortholog of the mammalian LC3 subfamily, which is also supported by the grouping in the evolutionary tree (Fig....
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...6), and Atg8a the ortholog of the GABARAP subfamily.(32) It appears therefore, that duplication of Atg8 early in eukaryotic evolution allowed specialization of...
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...discoideum Atg8 have been generated.(32,35) While these antibodies are useful for many experiments, fixed samples lack dynamic information....
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43 citations
Cites background from "The two Dictyostelium autophagy eig..."
...larger RFP-ATG8 structures were also detected in several Dictyostelium atg KO mutants and these were colocalized with ubiquitin, suggesting that they represent protein aggregates.(41,42) In the Arabidopsis atg4a atg4b double-mutant, globular GFP-ATG8 accumulations are soluble and were also suggested to be protein aggregates....
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27 citations
Cites background from "The two Dictyostelium autophagy eig..."
...In addition, the steady-state protein levels of the two Dictyostelium Atg8 orthologues were recently analyzed by western blot, and were shown to have different expression patterns during development [48]....
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...It is worth noting, however, that Dictyostelium possesses two Atg8 orthologues, which appear to play partly non-redundant roles in autophagosome formation, with different dynamics of recruitment [48,49]....
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...It is worth notin , however, that D cty s elium possesse two Atg8 orthologues, which appear to play partly non-redundant roles in autophagosome formation, with differ nt dynamics f recruitment [48,49]....
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...Additionally, as antibodies against the two Atg8 Dictyostelium orthologues have been generated, the endogenous proteins can be evaluated using immunohistochemistry [48,52]....
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23 citations
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