In addition, when we investigated the function of BCNP1 in the PI3K‐dependent signalling pathway, we found that PI3K inhibition and p38 MAPK activation leads to reduction in serine‐phosphorylation of BCNP1 suggesting that BCNP1 phosphorylation is dependent on PI3K and p38 MAPK and it might be involved in cancer. Here, PIK3CA is linked to cancer.