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| == Function == | | == Function == |
| [https://www.uniprot.org/uniprot/LGG2_CAEEL LGG2_CAEEL] Ubiquitin-like modifier involved in autophagy and essential for dauer development and life-span extension.<ref>PMID:20523114</ref> | | [https://www.uniprot.org/uniprot/LGG2_CAEEL LGG2_CAEEL] Ubiquitin-like modifier involved in autophagy and essential for dauer development and life-span extension.<ref>PMID:20523114</ref> |
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| == Publication Abstract from PubMed ==
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| Multicellular organisms have multiple homologs of the yeast ATG8 gene, but the differential roles of these homologs in autophagy during development remain largely unknown. Here we investigated structure/function relationships in the two C. elegans Atg8 homologs, LGG-1 and LGG-2. lgg-1 is essential for degradation of protein aggregates, while lgg-2 has cargo-specific and developmental-stage-specific roles in aggregate degradation. Crystallography revealed that the N-terminal tails of LGG-1 and LGG-2 adopt the closed and open form, respectively. LGG-1 and LGG-2 interact differentially with autophagy substrates and Atg proteins, many of which carry a LIR motif. LGG-1 and LGG-2 have structurally distinct substrate binding pockets that prefer different residues in the interacting LIR motif, thus influencing binding specificity. Lipidated LGG-1 and LGG-2 possess distinct membrane tethering and fusion activities, which may result from the N-terminal differences. Our study reveals the differential function of two ATG8 homologs in autophagy during C. elegans development.
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| Structural Basis of the Differential Function of the Two C. elegans Atg8 Homologs, LGG-1 and LGG-2, in Autophagy.,Wu F, Watanabe Y, Guo XY, Qi X, Wang P, Zhao HY, Wang Z, Fujioka Y, Zhang H, Ren JQ, Fang TC, Shen YX, Feng W, Hu JJ, Noda NN, Zhang H Mol Cell. 2015 Dec 17;60(6):914-29. doi: 10.1016/j.molcel.2015.11.019. PMID:26687600<ref>PMID:26687600</ref>
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| From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| </div>
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| <div class="pdbe-citations 5e6n" style="background-color:#fffaf0;"></div>
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| == References == | | == References == |
| <references/> | | <references/> |
