P2X7R and pannexin 1 channels form molecular complexes in bone cells.
P2X7R and Panx1 protein-protein interaction was assessed by immunoprecipitating lysates from long bone tissue, MLO-Y4 osteocytes and MOB-C osteoblasts with P2X7R antibody followed by Western blotting with Panx1 and P2X7R antibodies. “+” lanes represent samples with P2X7R antibody and “-” lanes represent samples with no antibody. Note: Both MLO-Y4 and MOB-C express two bands of P2X7R [functional glycosylated form at ~79kD and a splice variant at ~ 56kD ]. Bands corresponding to IgG heavy chain (~50 kD) are indicated on the blot with P2X7R antibody.