 C-terminally truncated STAR D9 mutants are known from experimental work to induce spindle assembly defects.In the reported case, several mitotic defects including multipolar spindle formation, fragmentation of pericentriolar materials and centrosome amplification were found.These proteins are primarily concerned with cholesterol transport

These proteins are involved in cholesterol and oxysterol transport

These proteins contain both the START domain and Rho-GTPase signaling activity

The members of this subfamily possess the START domain and thioesterase activity