SLCO1B1*47 is assigned no function due to no literature describing function of this allele. It contains 3 variants, rs2306283, rs4149056, both included in the no function *15 allele and rs72559747. One in vitro study found normal protein expression and transport for the rs72559747 variant (33658230). Based on evidence supporting the function of rs4149056C>T (11477075, 32961594, 21245207), SLCO1B1*47 is assigned no function with limited evidence.