proline dehydrogenase activity https://github.com/geneontology/go-ontology/issues/23335 https://github.com/geneontology/go-ontology/issues/29588 molecular_function EC:1.5.5.2 Reactome:R-HSA-6784224 Catalysis of the reaction: L-proline + a quinone = (S)-1-pyrroline-5-carboxylate + a quinol + H+. Reactome:R-HSA-8955817 MetaCyc:RXN-14903 proline oxidase activity L-proline dehydrogenase activity RHEA:23784 GO:0004657 oxidoreductase activity, acting on the CH-NH group of donors, quinone or similar compound as acceptor