U6 snRNA-Associated Sm-Like Protein LSm4/LSM4 Protein(N-6His) (recombinant human)

Protein Construction: Recombinant Human U6 snRNA-Associated Sm-Like Protein LSm4 is produced by our E.coli expression system and the target gene encoding Met1-Gln139 is expressed with a 6His tag at the N-terminus. Sequence: Met 1-Gln139. Fusion tag: N-6His Endotoxin: < 1.0 EU per µg as determined by the LAL method. Apparent Molecular Mass: 17 kDa. Protein function: U6 snRNA-associated Sm-like protein LSm4 (LSM4) is a member of the snRNP Sm proteins family. Sm-like proteins contain the Sm sequence motif and are thought to form a stable heteromer present in tri-snRNP particles, which are important for pre-mRNA splicing. LSM4 forms a heteromer with a donut shape. The complexes are involved in various steps of RNA metabolism. LSM4 binds specifically to the 3-terminal U-tract of U6 snRNA. LSM4 contributes RNA protein interactions and structural changes which are essential during ribosomal subunit assembly. Protein function: Plays role in pre-mRNA splicing as component of the U4/U6-U5 tri-snRNP complex that is involved in spliceosome assembly, and as component of the precatalytic spliceosome (spliceosome B complex) (PubMed:28781166). The heptameric LSM2-8 complex binds specifically to the 3'-terminal U-tract of U6 snRNA (PubMed:10523320). [The UniProt Consortium]