PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 26952080-4 2016 Here, we describe a direct comparison of tetrazine ligation and strain promoted azide-alkyne cycloaddition using benzimidazole based probes to bind their known target, the gastric proton pump, ATP4A. Azides 80-85 ATPase H+/K+ transporting subunit alpha Homo sapiens 193-198