U4/U6.U5 tri-snRNP-associated protein 1
Function
Plays a role in mRNA splicing as a component of the U4/U6-U5 tri-snRNP, one of the building blocks of the spliceosome. May also bind to DNA.
Post-translational modifications
Sumoylated with SUMO2.
Sequence Similarities
Belongs to the SNU66/SART1 family.
Tissue Specificity
Ubiquitously expressed.
Cellular localization
- Nucleus
- Found in the nucleus of mitogen-activated peripheral blood mononuclear cells (PBMCs), tumor cells, or normal cell lines, but not in normal tissues except testis and fetal liver or in unstimulated PBMCs, suggesting preferential expression in proliferating cells.
Alternative names
U4/U6.U5 tri-snRNP-associated protein 1, SNU66 homolog, Squamous cell carcinoma antigen recognized by T-cells 1, U4/U6.U5 tri-snRNP-associated 110 kDa protein, hSnu66, SART-1, hSART-1, SART1