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RING1 | E3 ubiquitin-protein ligase RING1; Constitutes one of the E3 ubiquitin-protein ligases that mediate monoubiquitination of 'Lys-119' of histone H2A, thereby playing a central role in histone code and gene regulation. H2A 'Lys-119' ubiquitination gives a specific tag for epigenetic transcriptional repression and participates in X chromosome inactivation of female mammals. Essential component of a Polycomb group (PcG) multiprotein PRC1-like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG P [...] (406 aa) | ||||
SLFN13 | Schlafen family member 13; Endoribonuclease that cleaves tRNAs and rRNAs. Cleaves tRNAs 11 nucleotides from the 3'-terminus at the acceptor stem. Does not act on tRNA(Sec). Able to restrict HIV-1 virus replication; ability to inhibit HIV-1 replication is dependent on endoribonuclease activity. (897 aa) |