This family includes Pet10p and Sps4p which are yeast perilipin proteins [1].

1: High confidence proteomic analysis of yeast LDs identifies additional droplet proteins and reveals connections to dolichol synthesis and sterol acetylation. Currie E, Guo X, Christiano R, Chitraju C, Kory N, Harrison K, Haas J, Walther TC, Farese RV Jr; J Lipid Res. 2014;55:1465-1477. PMID:24868093

2: Pet10p is a yeast perilipin that stabilizes lipid droplets and promotes their assembly. Gao Q, Binns DD, Kinch LN, Grishin NV, Ortiz N, Chen X, Goodman JM; J Cell Biol. 2017;216:3199-3217. PMID:28801319