EOG8W9MK5 GO:0045454 56/189 cell redox homeostasis biological_process "Any process that maintains the redox environment of a cell or compartment within a cell." [GOC:ai, GOC:dph, GOC:tb] EOG8W9MK5 GO:0009055 52/189 electron carrier activity molecular_function "Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient." [ISBN:0198506732] EOG8W9MK5 GO:0015035 52/189 protein disulfide oxidoreductase activity molecular_function "Catalysis of the reaction: a protein with reduced sulfide groups = a protein with oxidized disulfide bonds." [MetaCyc:DISULFOXRED-RXN]