PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12356333-8 2003 The rates of reduction of Fe(III), AQDS, U(VI) and fumarate were also the same in the wild type and ppcA mutant when hydrogen was supplied as the electron donor. Hydrogen 117-125 cathepsin A Homo sapiens 100-104 10944848-4 2000 The results show that the K453E mutation is located at the dimer interface of the PPCA and reduces the hydrogen bond formation in the dimer. Hydrogen 103-111 cathepsin A Homo sapiens 82-86