{"type": "root", "children": [{"type": "p", "children": [{"type": "t", "text": "\nThe provided abstract, associated with"}, {"type": "fg", "children": [{"type": "fg_f", "ref": "1"}]}, {"type": "t", "text": ", details the essential role of G2E3—a dual function ubiquitin ligase—in early embryonic development. G2E3 utilizes two distinct RING-like domains to catalyze lysine 48-linked polyubiquitination, thereby preventing apoptosis during critical stages preceding implantation. Its activity is especially important in early embryogenesis, as its deficiency leads to massive apoptotic cell death in blastocysts. Expression studies indicate that G2E3 is predominantly active in the central nervous system and early limb bud formation, with continued expression in specific adult tissues such as Purkinje cell bodies and cells lining the ductus deferens.\n \nHowever, it is important to note that this abstract does not mention or provide any information regarding the function or role of LINC01393. As such, while the query requests a summary of LINC01393’s function, the data provided here is solely focused on G2E3, and no conclusions related to LINC01393 can be drawn from this abstract.\n"}]}, {"type": "rg", "children": [{"type": "r", "ref": 1, "children": [{"type": "t", "text": "William S Brooks, E Scott Helton, Sami Banerjee, et al. "}, {"type": "b", "children": [{"type": "t", "text": "G2E3 is a dual function ubiquitin ligase required for early embryonic development."}]}, {"type": "t", "text": " "}, {"type": "i", "children": [{"type": "t", "text": "J Biol Chem (2008)"}]}, {"type": "t", "text": " DOI: "}, {"type": "a", "children": [{"type": "t", "text": "10.1074/jbc.M803238200"}], "href": "https://doi.org/10.1074/jbc.M803238200"}, {"type": "t", "text": " PMID: "}, {"type": "a", "children": [{"type": "t", "text": "18511420"}], "href": "https://pubmed.ncbi.nlm.nih.gov/18511420"}]}]}]}