Anti-PIP1 antibodies enable researchers to detect and measure the PIP1 antigen in biological samples. This target is a reported synonym of the PAK1IP1 gene, which encodes PAK1 interacting protein 1. This protein is known to function in cell proliferation, among other biological roles. The human version of PIP1 has a canonical amino acid length of 392 residues and a protein mass of 44 kilodaltons. It is reported to be localized in the nucleus of cells and widely expressed in many tissue types.