Perilipins build a family of phosphoproteins. The predominant forms in adipocytes, perilipin A and B arise by alternative RNA splicing from a single gene, generating polypeptides of 57 and 46 kDa, respectively. The N-terminus, however, remains unchanged. The antiserum reacts specifically with perilipins (A and B) located at the surface of intracellular storage lipid droplets present e.g. in the adrenal gland, adipocytes of white and brown adipose tissue and cultured cells such as 3T3-L1 adipocytes and cultured steroidogenic adrenal cortical and Leydig cells. Synonyms: Monoclonal Perilipin antibody, Anti Perilipin antibody.