PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32180303-7 2020 DPP-4 cleavage of alpha/beta-peptide bond with a broad promiscuity represents a new insight into stability of peptide analogs containing beta-amino acids since such analogs were thought to be stable towards enzymatic degradation. beta-amino acids 137-153 dipeptidyl peptidase 4 Homo sapiens 0-5