Polypeptide reacting: MLDP = myocardial lipid droplet protein (also described as OXPAT/PAT-1 and perilipin 5 / PLIN5), MW 50,844 (calculated from aa sequence data), apparent Mr 52,000 (after SDS-PAGE) MLDP / PLIN5 pertains to the PLIN/PAT-family proteins, covering the surface of cytoplasmic lipid droplets and sharing a homologous domain called PAT. Additional PLIN/PAT proteins include adipophilin (ADRP/PLIN2), perilipin (PLIN1), and TIP47 (PLIN3) which are expressed in differentiation-related stages of lipid metabolism.