PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34026400-2 2021 To understand the origin of these unique molecular properties of TAT rhodopsin, we mutated Thr82 into Asp, because many microbial rhodopsins contain Asp at the corresponding position as the Schiff base counterion. Aspartic Acid 102-105 rhodopsin Homo sapiens 69-78