go_id,ontology,go_term,term_definition,evidence GO:0005615,CC,"extracellular space","That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.",TAS GO:0006396,BP,"RNA processing","Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.",IEA GO:0044822,MF,"poly(A) RNA binding","Interacting non-covalently with a poly(A) RNA, a RNA molecule which has a tail of adenine bases.",IDA GO:0046872,MF,"metal ion binding","Interacting selectively and non-covalently with any metal ion.",IEA