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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 an attached to it. |
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GO:0016021
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integral component of membrane
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The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane. |
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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:0043234
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protein complex
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A stable macromolecular complex composed (only) of two or more polypeptide subunits along with any covalently attached molecules (such as lipid anchors or oligosaccharide) or non-protein prosthetic groups (such as nucleotides or metal ions). Prosthetic group in this context refers to a tightly bound cofactor. The component polypeptide subunits may be identical. |
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GO:0043190
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ATP-binding cassette (ABC) transporter complex
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A complex for the transport of metabolites into and out of the cell, typically comprised of four domains; two membrane-associated domains and two ATP-binding domains at the intracellular face of the membrane, that form a central pore through the plasma membrane. Each of the four core domains may be encoded as a separate polypeptide or the domains can be fused in any one of a number of ways into multidomain polypeptides. In Bacteria and Archaebacteria, ABC transporters also include substrate binding proteins to bind substrate external to the cytoplasm and deliver it to the transporter. |
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GO:1902494
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catalytic complex
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A protein complex which is capable of catalytic activity. |
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GO:0005623
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cell
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The basic structural and functional unit of all organisms. Includes the plasma membrane and any external encapsulating structures such as the cell wall and cell envelope. |
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GO:0032991
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macromolecular complex
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A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which the constituent parts function together. |
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GO:0044464
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cell part
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Any constituent part of a cell, the basic structural and functional unit of all organisms. |
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GO:0005575
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cellular_component
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The part of a cell or its extracellular environment in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together. |
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GO:0071944
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cell periphery
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The part of a cell encompassing the cell cortex, 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:0044425
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membrane part
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Any constituent part of a membrane, a double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. |
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GO:0031224
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intrinsic component of membrane
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The component of a membrane consisting of the gene products having some covalently attached portion, for example part of a peptide sequence or some other covalently attached group such as a GPI anchor, which spans or is embedded in one or both leaflets of the membrane. |
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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:0044459
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plasma membrane part
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Any constituent part of the plasma membrane, 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: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: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:0098533
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ATPase dependent transmembrane transport complex
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A transmembrane protein complex that functions in ATPase dependent active transport across a membrane. |
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GO:1902509
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methionine-importing complex
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A protein complex which is capable of methionine-importing activity. |
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GO:1990197
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ATP-dependent methionine-importing complex
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An ATP-binding cassette (ABC) transporter complex that is capable of methionine-importing activity. An example is the bacterial MetNIQ methionine transporter, that consists of the dimeric ATPase subunit MetN located at the cytoplasmic side of the plasma membrane and the dimeric transmembrane subunit MetI. MetQ is regarded as the periplasmic methionine-binding chaperon subunit, and is capable of transporting methionine from the periplasm into the cytoplasm in an ATP-dependent manner. |
