Anti-WDR5 antibodies are used in the immunodetection of the protein WD repeat domain 5. In humans, the canonical protein has a reported length of 334 amino acid residues and a mass of 36.6 kDa. Its subcellular localization is in the nucleus. A member of the WD repeat WDR5/wds protein family, it is known to be involved with neuronal development and the regulation of transcription. Synonyms for this target antigen include BIG3, CFAP89, SWD3, WD repeat-containing protein 5, BMP2-induced 3-kb gene protein, and BIG-3.