Table 1. The interaction affinities of IPP binding to the intracellular or extracellular domains of BTN3A1, and of TCR binding to BNT3A1 in presence of IPP.

Interaction	KD (μM)	Ref.
IPP: extracellular BTN3A1	69.9	31
IPP:B30.20	≈500	29
Vγ9Vδ2 TCR:BTN3A1(IPP)	340	31