ODR-2::HA was observed on cell surfaces in the nervous system. The protein was found on the cell bodies of many neurons in the head and tail, on many neuronal processes running along the major (dorsal and ventral) nerve cords, and on the surface of numerous sublateral nerve cords and circumferential commissures.
Immunocytochemistry using affinity-purified antibodies on fixed C. elegans embryos of varying ages revealed that AIR-1 is present on mitotic centrosomes. In the adult, AIR-1 staining was also found on the centrosomes of mitotic germ cells in the distal gonad.
Expression detected from late embryos to adults. In embryos, expression is detected on lateral sides and in larval stages on, in all hypodermis, rectum and vulval cells.