Your Input: | |||||
Su(z)12 | Polycomb protein Su(z)12; Polycomb group (PcG) protein. While PcG proteins are generally required to maintain the transcriptionally repressive state of homeotic genes throughout development, this protein is specifically required during the first 6 hours of embryogenesis to establish the repressed state. Component of the Esc/E(z) complex, which methylates 'Lys-9' (H3K9me) and 'Lys-27' (H3K27me) of histone H3, leading to transcriptional repression of the affected target gene. The Esc/E(z) complex is necessary but not sufficient for the repression of homeotic target genes, suggesting that [...] (900 aa) | ||||
heix | UbiA prenyltransferase domain-containing protein 1 homolog; Prenyltransferase that mediates the formation of menaquinone- 4 (MK-4), a vitamin K2 isoform, thereby acting as a mitochondrial electron carrier. Mediates the conversion of phylloquinone (PK) into MK-4, probably by cleaving the side chain of phylloquinone (PK) to release 2-methyl-1,4-naphthoquinone (menadione; K3) and then prenylating it with geranylgeranyl pyrophosphate (GGPP) to form MK-4. MK-4 acts as a membrane electron carrier downstream of a electron transport chain complex, improving mitochondrial oxygen consumption. (359 aa) |