| GO term | GO name | GO namespace | GO def |
| GO:0016020 | membrane | cellular_component | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. [GOC:dos, GOC:mah, ISBN:0815316194] |
| GO:0005515 | protein binding | molecular_function | Binding to a protein. [GOC:go_curators] |
| GO:0005769 | early endosome | cellular_component | A membrane-bounded organelle that receives incoming material from primary endocytic vesicles that have been generated by clathrin-dependent and clathrin-independent endocytosis; vesicles fuse with the early endosome to deliver cargo for sorting into recycling or degradation pathways. [GOC:mah, NIF_Subcellular:nlx_subcell_20090701, PMID:19696797] |
| GO:0043231 | intracellular membrane-bounded organelle | cellular_component | Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane. [GOC:go_curators] |
| GO:0010008 | endosome membrane | cellular_component | The lipid bilayer surrounding an endosome. [GOC:mah] |
| GO:0008289 | lipid binding | molecular_function | Binding to a lipid. [GOC:ai] |
| GO:0098588 | bounding membrane of organelle | cellular_component | The lipid bilayer that forms the outer-most layer of an organelle. [GOC:dos] |
| GO:0005488 | binding | molecular_function | The selective, non-covalent, often stoichiometric, interaction of a molecule with one or more specific sites on another molecule. [GOC:ceb, GOC:mah, ISBN:0198506732] |
| GO:0035091 | phosphatidylinositol binding | molecular_function | Binding to an inositol-containing glycerophospholipid, i.e. phosphatidylinositol (PtdIns) and its phosphorylated derivatives. [GOC:bf, ISBN:0198506732, PMID:11395417] |
| GO:0030659 | cytoplasmic vesicle membrane | cellular_component | The lipid bilayer surrounding a cytoplasmic vesicle. [GOC:mah] |
| GO:0005829 | cytosol | cellular_component | The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes. [GOC:hjd, GOC:jl] |
| GO:0007179 | transforming growth factor beta receptor signaling pathway | biological_process | A series of molecular signals initiated by the binding of an extracellular ligand to a transforming growth factor beta receptor on the surface of a target cell, and ending with regulation of a downstream cellular process, e.g. transcription. [GOC:BHF, GOC:mah, GOC:signaling] |
| GO:0031090 | organelle membrane | cellular_component | A membrane that is one of the two lipid bilayers of an organelle envelope or the outermost membrane of single membrane bound organelle. [GOC:dos, GOC:mah] |
| 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:0046872 | metal ion binding | molecular_function | Binding to a metal ion. [GOC:ai] |
| GO:0016197 | endosomal transport | biological_process | The directed movement of substances mediated by an endosome, a membrane-bounded organelle that carries materials enclosed in the lumen or located in the endosomal membrane. [ISBN:0198506732] |
| GO:0110165 | cellular anatomical entity | cellular_component | A part of a cellular organism that is either an immaterial entity or a material entity with granularity above the level of a protein complex but below that of an anatomical system. Or, a substance produced by a cellular organism with granularity above the level of a protein complex. [GOC:kmv] |
| GO:0005543 | phospholipid binding | molecular_function | Binding to a phospholipid, a class of lipids containing phosphoric acid as a mono- or diester. [ISBN:0198506732] |
| GO:0006897 | endocytosis | biological_process | A vesicle-mediated transport process in which cells take up external materials or membrane constituents by the invagination of a small region of the plasma membrane to form a new membrane-bounded vesicle. [GOC:mah, ISBN:0198506732, ISBN:0716731363] |
| GO:0012506 | vesicle membrane | cellular_component | The lipid bilayer surrounding any membrane-bounded vesicle in the cell. [GOC:mah, GOC:vesicle] |