U6 spliceosomal RNA (U6 snRNA)

U6 spliceosomal RNA (U6 snRNA) is a highly conserved, non-coding, small nuclear RNA that functions as an essential component of the spliceosome, the ribonucleoprotein complex responsible for excising introns from precursor mRNA (pre-mRNA) in the nucleus of eukaryotic cells[1][2][4][5]. It forms part of the U6 small nuclear ribonucleoprotein (snRNP), dynamically interacting with U4, U2, and U5 snRNAs and numerous proteins throughout the stepwise assembly and catalytic activation of the spliceosome[1][3][5]. U6 snRNA is directly involved in the catalytic steps of splicing, coordinating catalytic metal ions and forming key base-pairing interactions that define the active site of the spliceosome[1][2][5][7]. Its sequence and structure are the most conserved among the five spliceosomal snRNAs, underscoring its fundamental and universal role in gene expression[2][4][8]. While disruption of U6 snRNA function is lethal to cells, there are currently no clinically approved drugs that target this RNA molecule directly for therapeutic purposes. Note: U6 snRNA is not considered a classical "therapeutic target" like a receptor, enzyme, or transporter because it is a structural and catalytic RNA essential for basic cellular function, and its inhibition would be incompatible with viability[1][2].

Other names

U6 snRNAU6 small nuclear RNAU6LOC124902333U6 spliceosomal RNA