Anti-NOS1AP antibodies are used in the immunodetection of the protein nitric oxide synthase 1 adaptor protein. In humans, the canonical protein has a reported length of 506 amino acid residues and a mass of 56.2 kDa. Its subcellular localization is in the cell projections. Alternative splicing is reported to yield 3 different isoforms for this protein. It is reported to be expressed in kidney glomeruli podocytes. NOS1AP is known to be an adapter protein involved in neuronal nitric-oxide (NO) synthesis regulation via its association with nNOS/NOS1. Synonyms for this target antigen include CAPON, NPHS22, carboxyl-terminal PDZ ligand of neuronal nitric oxide synthase protein, and 6330408P19Rik.