UASt regulatory sequences drive expression of the Hsap\PAIP2B open reading frame. The ORF was obtained from the human ORFeome v8.1 collection ( ORF_ID:100062590 ) and corresponds to Ensembl transcript ENST00000244221.8. The endogenous stop codon is present, thus even though three copies of the Tag:HA tag are present downstream of the ORF, they are not expected to form part of the translated protein.