Rabbit Anti-Human C2ORF28 polyclonal antibody for ELISA, WB. Apoptosis related protein 3 (APR3), also known as C2orf28, is a membrane protein identified in HL-60 cells treated with all-trans retinoic acid (ATRA) and was later found to be induced by ATRA in other sensitive cell lines. APR3 is also up-regulated by NF