The immunogen is a synthetic peptide directed towards the middle region of human SNRPA
Alternative Synonym:
U1A, Mud1, U1-A
SNRPA binds stem loop II of U1 snRNA. It is the first snRNP to interact with pre-mRNA. This interaction is required for the subsequent binding of U2 snRNP and the U4/U6/U5 tri-snRNP. In a snRNP-free form (SF-A) may be involved in coupled pre-mRNA splicing and polyadenylation process.