SF3A1

(redirected from SF3a120)

SF3A1

A gene on chromosome 22q12.2 that encodes subunit 1 of the splicing factor SF3A, which is required for “A” complex assembly by the stable binding of U2 snRNP to the branchpoint sequence in pre-mRNA. It may anchor U2 snRNP to pre-mRNA and be involved in assembling the “E” complex.