Immunogen sequence: KQDLVKLDIN GLPYGLCAGC VNLSKSASPG INVPPGTNRP GLGQNENLSA IEGKGKVGGL KTRCSSCNVK FESE Highest antigen sequence identity to the following orthologs: Mouse - 88%, Rat - 85%. The zinc finger protein 521 (ZNF521) is a transcription factor con