PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11866528-5 2002 We determined the crystal structures of the extracellular region of human BST-1 at atomic resolution in the free form and in complexes with five substrate analogues: nicotinamide, NMN, ATPgammaS, ethenoNADP, and ethenoNAD. EthenoNAD 196-205 bone marrow stromal cell antigen 1 Homo sapiens 74-79