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GO:0032991
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protein-containing complex
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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. |
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GO:0005575
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cellular_component
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A location, relative to cellular compartments and structures, occupied by a macromolecular machine. There are three types of cellular components described in the gene ontology: (1) the cellular anatomical entity where a gene product carries out a molecular function (e.g., plasma membrane, cytoskeleton) or membrane-enclosed compartments (e.g., mitochondrion); (2) virion components, where viral proteins act, and (3) the stable macromolecular complexes of which gene product are parts (e.g., the clathrin complex). |
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GO:0110165
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cellular anatomical structure
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A part of a cellular organism consisting of a material entity with granularity above the level of a protein complex but below that of an anatomical system. Note that cellular organisms exclude viruses. |
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GO:0071944
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cell periphery
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The broad region around and including the plasma membrane of a cell, encompassing the cell cortex (inside the cell), the plasma membrane, and any external encapsulating structures. |
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GO:0098796
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membrane protein complex
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Any protein complex that is part of a membrane. |
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GO:0016020
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membrane
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A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it. |
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GO:1990351
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transporter complex
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A protein complex facilitating transport of molecules (proteins, small molecules, nucleic acids) into, out of or within a cell, or between cells. |
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GO:1902495
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transmembrane transporter complex
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A transmembrane protein complex which enables the transfer of a substance from one side of a membrane to the other. |
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GO:0005886
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plasma membrane
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The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. |
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GO:0098797
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plasma membrane protein complex
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Any protein complex that is part of the plasma membrane. |
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GO:0034702
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monoatomic ion channel complex
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A protein complex that spans a membrane and forms a water-filled channel across the phospholipid bilayer allowing selective monoatomic ion transport down its electrochemical gradient. |
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GO:0043235
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receptor complex
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Any protein complex that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function. |
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GO:0098802
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plasma membrane signaling receptor complex
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Any protein complex that is part of the plasma membrane and which functions as a signaling receptor. |
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GO:0008328
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ionotropic glutamate receptor complex
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A multimeric assembly of four or five subunits which form a structure with an extracellular N-terminus and a large loop that together form the ligand binding domain. The C-terminus is intracellular. The ionotropic glutamate receptor complex itself acts as a ligand-gated ion channel; on binding glutamate, charged ions pass through a channel in the center of the receptor complex. |
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GO:0098878
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neurotransmitter receptor complex
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Any protein complex that is capable of functioning as a neurotransmitter receptor. |
