| GO term | GO name | GO namespace | GO def |
| GO:0098796 | membrane protein complex | cellular_component | Any protein complex that is part of a membrane. [GOC:dos] |
| GO:0005886 | plasma membrane | cellular_component | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. [ISBN:0716731363] |
| GO:0005254 | chloride channel activity | molecular_function | Enables the facilitated diffusion of a chloride (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. [GOC:mtg_transport, GOC:pr, ISBN:0815340729] |
| GO:0034702 | ion channel complex | cellular_component | A protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective ion transport down its electrochemical gradient. [GOC:mah, ISBN:071673706X] |
| GO:0032991 | protein-containing complex | cellular_component | A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together. [GOC:dos, GOC:mah] |
| GO:1990351 | transporter complex | cellular_component | A protein complex facilitating transport of molecules (proteins, small molecules, nucleic acids) into, out of or within a cell, or between cells. [GOC:bhm, PMID:15449578] |
| GO:1902495 | transmembrane transporter complex | cellular_component | A transmembrane protein complex which enables the transfer of a substance from one side of a membrane to the other. [GOC:bhm, GOC:TermGenie, PMID:18024586] |
| GO:0006821 | chloride transport | biological_process | The directed movement of chloride into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. [GOC:krc] |