EOG8CG2QS GO:0004657 3/7 proline dehydrogenase activity molecular_function "Catalysis of the reaction: L-proline + acceptor = (S)-1-pyrroline-5-carboxylate + reduced acceptor." [EC:1.5.99.8] EOG8CG2QS GO:0006562 3/7 proline catabolic process biological_process "The chemical reactions and pathways resulting in the breakdown of proline (pyrrolidine-2-carboxylic acid), a chiral, cyclic, nonessential alpha-amino acid found in peptide linkage in proteins." [GOC:jl, ISBN:0198506732]