It has been shown that in C. elegans mitochondria treated to lower expression of certain electron transport chain proteins during the L3/L4 stage, its expression levels is higher leading to increased lifespans.[6]
Ubiquitin-like proteins (UBLs) are thought to be reversible modulators of protein function rather than protein degraders like ubiquitin (MIM 191339).[supplied by OMIM][5]
Friedman JS, Koop BF, Raymond V, Walter MA (2001). "Isolation of a ubiquitin-like (UBL5) gene from a screen identifying highly expressed and conserved iris genes". Genomics. 71 (2): 252–5. doi:10.1006/geno.2000.6439. PMID11161819.