Robuta

https://www.ncbi.nlm.nih.gov/Structure/pdb/3T4M 3T4M: Ac-AChBP ligand binding domain mutated to human alpha-7 nAChR (intermediate) Soluble acetylcholine receptor(4R)-2-METHYLPENTANE-2,4-DIOL(4S)-2-METHYL-2,4-PENTANEDIOLCALCIUM ION