PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 23631440-4 2013 Our previous work with the mercaptosulfide functionality attached to both cyclopentane and pyrrolidine frameworks demonstrated that the cis-(3S,4R)-stereochemistry was optimal for all of the MMPs tested. Cyclopentanes 74-86 matrix metallopeptidase 1 Homo sapiens 191-195