Structure and function of lipid droplet assembly complexes Review
| Authors: | Walther, T. C.; Kim, S.; Arlt, H.; Voth, G. A.; Farese, R. V. Jr |
| Review Title: | Structure and function of lipid droplet assembly complexes |
| Abstract: | Cells store lipids as a reservoir of metabolic energy and membrane component precursors in organelles called lipid droplets (LDs). LD formation occurs in the endoplasmic reticulum (ER) at LD assembly complexes (LDAC), consisting of an oligomeric core of seipin and accessory proteins. LDACs determine the sites of LD formation and are required for this process to occur normally. Seipin oligomers form a cage-like structure in the membrane that may serve to facilitate the phase transition of neutral lipids in the membrane to form an oil droplet within the LDAC. Modeling suggests that, as the LD grows, seipin anchors it to the ER bilayer and conformational shifts of seipin transmembrane segments open the LDAC dome toward the cytoplasm, enabling the emerging LD to egress from the ER. © 2023 The Authors |
| Keywords: | unclassified drug; review; nonhuman; carboxy terminal sequence; molecular dynamics; endoplasmic reticulum; amino acid sequence; amino terminal sequence; triacylglycerol; chemical structure; phospholipids; lipid analysis; fat droplet; surface tension; lipid droplet; phase separation; human; seipin; sterol esters; lipid droplet assembly complex |
| Journal Title: | Current Opinion in Structural Biology |
| Volume: | 80 |
| ISSN: | 0959-440X |
| Publisher: | Elsevier Inc. |
| Date Published: | 2023-06-01 |
| Start Page: | 102606 |
| Language: | English |
| DOI: | 10.1016/j.sbi.2023.102606 |
| PROVIDER: | scopus |
| PUBMED: | 37150040 |
| DOI/URL: | |
| Notes: | Review -- Export Date: 1 June 2023 -- Source: Scopus |
Altmetric
Citation Impact
BMJ Impact Analytics
Related MSK Work