Different histone Lysine ubiquitin ligase
Enzyme (UniprotKB recommended name) Coding gene/s Site of histone modification
ring finger protein 1RING1H2AK119ub
ring finger protein 2RNF2H2AK119ub
ring finger protein 20RNF20H2BK120ub
ring finger protein 40RNF40H2BK120ub
ring-box 1RBX1H2BK120ub