We are doing some in vitro computational chemistry.
I would like to estimate good aptamers targeting PD-1. And would need to know the sequence and the ternary (possibly quaternary) structure from a state of art.
Something like this https://www.sciencedirect.com/science/article/pii/S2162253116300233
but more recent possible. Do you have any more recent reference as you work in this context?