PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11777461-5 2002 Again, comparison with the parent compounds based on an unsubstituted bithiophene spacer reveals a marked red shift of the absorption maximum and a large enhancement of mu beta. 2,2'-Bithiophene 70-81 ubiquitin like 3 Homo sapiens 169-176