EOG8Z38VC GO:0005615 3/5 extracellular space cellular_component "That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid." [ISBN:0198547684] EOG8Z38VC GO:0004866 2/5 endopeptidase inhibitor activity molecular_function "Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides." [GOC:jl]