| GOID Link to GO |
Functional Category | Description | Protein Count link to protein list |
|---|---|---|---|
| GO:0044459 | plasma membrane part | 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. | 699 |
| GO:0005887 | integral to plasma membrane | Penetrating at least one phospholipid bilayer of a plasma membrane. May also refer to the state of being buried in the bilayer with no exposure outside the bilayer. | 493 |
| GO:0016324 | apical plasma membrane | The region of the plasma membrane located at the apical end of the cell. | 456 |
| GO:0046658 | anchored to plasma membrane | Tethered to the plasma membrane by a covalently attached anchor, such as a lipid group, that is embedded in the membrane. When used to describe a protein, indicates that the peptide sequence does not span the membrane. | 379 |
| GO:0009897 | external side of plasma membrane | The side of the plasma membrane that is opposite to the side that faces the cytoplasm. | 219 |
| GO:0016323 | basolateral plasma membrane | The region of the plasma membrane that includes the basal end and sides of the cell. Often used in reference to animal polarized epithelial membranes, where the basal membrane is the part attached to the extracellular matrix, or in plant cells, where the basal membrane is defined with respect to the zygotic axis. | 158 |
| GO:0019897 | extrinsic to plasma membrane | Loosely bound to one surface of the plasma membrane, but not integrated into the hydrophobic region. | 111 |
| GO:0005901 | caveola | A membrane raft that forms small pit, depression, or invagination that communicates with the outside of a cell and extends inward, indenting the cytoplasm and the cell membrane. Examples include any of the minute pits or incuppings of the cell membrane formed during pinocytosis. Such caveolae may be pinched off to form free vesicles within the cytoplasm. | 104 |
| GO:0016328 | lateral plasma membrane | The membranes on the sides of epithelial cells which lie at the interface of adjacent cells. | 87 |
| GO:0042383 | sarcolemma | The outer membrane of a muscle cell, consisting of the plasma membrane, a covering basement membrane (about 100 nm thick and sometimes common to more than one fiber), and the associated loose network of collagen fibers. | 83 |
| GO:0005834 | heterotrimeric G-protein complex | Any of a family of heterotrimeric GTP-binding and hydrolyzing proteins; they belong to a superfamily of GTPases that includes monomeric proteins such as EF-Tu and RAS. Heterotrimeric G-proteins consist of three subunits; the alpha subunit contains the guanine nucleotide binding site and possesses GTPase activity; the beta and gamma subunits are tightly associated and function as a beta-gamma heterodimer; extrinsic plasma membrane proteins (cytoplasmic face) that function as a complex to transduce signals from G-protein coupled receptors to an effector protein. | 81 |
| GO:0009898 | internal side of plasma membrane | The side of the plasma membrane that faces the cytoplasm. | 79 |
| GO:0009925 | basal plasma membrane | The region of the plasma membrane located at the basal end of the cell. Often used in reference to animal polarized epithelial membranes, where the basal membrane is the part attached to the extracellular matrix, or in plant cells, where the basal membrane is defined with respect to the zygotic axis. | 70 |
| GO:0031526 | brush border membrane | The portion of the plasma membrane surrounding the brush border. | 69 |
| GO:0030315 | T-tubule | Invagination of the plasma membrane of a muscle cell that extends inward from the cell surface around each myofibril. The ends of T-tubules make contact with the sarcoplasmic reticulum membrane. | 61 |
| GO:0001891 | phagocytic cup | An invagination of the cell membrane formed by an actin dependent process during phagocytosis. Following internalization it is converted into a phagosome. | 60 |
| GO:0031226 | intrinsic to plasma membrane | Located in the plasma membrane such that some covalently attached portion of the gene product, for example part of a peptide sequence or some other covalently attached group such as a GPI anchor, spans or is embedded in one or both leaflets of the membrane. | 44 |
| GO:0046691 | intracellular canaliculus | An apical plasma membrane part that forms a narrow enfolded luminal membrane channel, lined with numerous microvilli, that appears to extend into the cytoplasm of the cell. A specialized network of intracellular canaliculi is a characteristic feature of parietal cells of the gastric mucosa in vertebrates. | 40 |
| GO:0031253 | cell projection membrane | The portion of the plasma membrane surrounding a cell surface projection. | 37 |
| GO:0032809 | neuronal cell body membrane | The plasma membrane of a neuron cell body - excludes the plasma membrane of cell projections such as axons and dendrites. | 36 |
| GO:0031527 | filopodium membrane | The portion of the plasma membrane surrounding a filopodium. | 34 |
| GO:0036128 | CatSper complex | A sperm-specific voltage-gated calcium channel that controls the intracellular calcium ion concentration and, thereby, the swimming behavior of sperm. Consists of a heteromeric tetramer surrounding a calcium ion- selective pore. May also contain additional auxiliary subunits. | 33 |
| GO:0033181 | plasma membrane proton-transporting V-type ATPase complex | A proton-transporting two-sector ATPase complex found in the plasma membrane. | 30 |
| GO:0032587 | ruffle membrane | The portion of the plasma membrane surrounding a ruffle. | 28 |
| GO:0042622 | photoreceptor outer segment membrane | The membrane surrounding the outer segment of a vertebrate photoreceptor. | 25 |
| GO:0060170 | cilium membrane | The portion of the plasma membrane surrounding a cilium. | 22 |
| GO:0005891 | voltage-gated calcium channel complex | A protein complex that forms a transmembrane channel through which calcium ions may pass in response to changes in membrane potential. | 20 |
| GO:0031260 | pseudopodium membrane | The portion of the plasma membrane surrounding a pseudopodium. | 19 |
| GO:0000148 | 1,3-beta-D-glucan synthase complex | A protein complex that catalyzes the transfer of a glucose group from UDP-glucose to a (1->3)-beta-D-glucan chain. | 19 |
| GO:0001772 | immunological synapse | An area of close contact between a lymphocyte (T-, B-, or natural killer cell) and a target cell formed through the clustering of particular signaling and adhesion molecules and their associated membrane rafts on both the lymphocyte and the target cell and facilitating activation of the lymphocyte, transfer of membrane from the target cell to the lymphocyte, and in some situations killing of the target cell through release of secretory granules and/or death-pathway ligand-receptor interaction. | 19 |
| GO:0030122 | AP-2 adaptor complex | A heterotetrameric AP-type membrane coat adaptor complex that consists of alpha, beta2, mu2 and sigma2 subunits, and links clathrin to the membrane surface of a vesicle; vesicles with AP-2-containing coats are normally found primarily near the plasma membrane, on endocytic vesicles. In at least humans, the AP-2 complex can be heterogeneric due to the existence of multiple subunit isoforms encoded by different alpha genes (alphaA and alphaC). | 16 |
| GO:0031520 | plasma membrane of cell tip | The portion of the plasma membrane surrounding the cell tip. | 15 |
| GO:0031234 | extrinsic to internal side of plasma membrane | Loosely bound to the surface of the plasma membrane that faces the cytoplasm, but not integrated into the hydrophobic region. | 14 |
| GO:0030096 | plasma membrane-derived thylakoid photosystem II | A protein complex, located in the membrane-derived thylakoid, containing the P680 reaction center. In the light, PSII functions as a water-plastoquinone oxidoreductase, transferring electrons from water to plastoquinone. | 13 |
| GO:0032590 | dendrite membrane | The portion of the plasma membrane surrounding a dendrite. | 13 |
| GO:0045260 | plasma membrane proton-transporting ATP synthase complex | A proton-transporting ATP synthase complex found in the plasma membrane. Examples of this component are found in Bacterial species. | 9 |
| GO:0033281 | TAT protein transport complex | A complex of three proteins integral to the cytoplasmic membrane of bacteria and membranes of organelles derived from bacteria (chloroplasts and mitochondria) involved in membrane transport of folded proteins. | 8 |
| GO:0045282 | plasma membrane succinate dehydrogenase complex | A multimeric complex which consists of flavoprotein (subunit A ; InterPro:IPR003952), iron-sulfur protein (subunit B) and membrane-bound cytochrome b560 (subunit C; InterPro:IPR000701). In some Archaea, the membrane-bound subunits (C or C and D) do not necessarily contain heme. Membrane-bound subunits can bind/react with quinones. Examples of this component are found in Bacterial species. | 8 |
| GO:0070765 | gamma-secretase complex | A protein complex that has aspartic-type endopeptidase activity, and contains a catalytic subunit, presenilin (PS), that is a prototypical member of the GxGD-type aspartyl peptidases. The complex also contains additional subunits, including nicastrin, APH-1, PEN-2, and a regulatory subunit, CD147. Gamma-secretase cleaves several transmembrane proteins including the cell surface receptor Notch and the beta-amyloid precursor protein. | 7 |
| GO:0030132 | clathrin coat of coated pit | The coat found on coated pits and the coated vesicles derived from coated pits; comprises clathrin and the AP-2 adaptor complex. | 6 |
| GO:0097203 | phagocytic cup lip | The tip or margin of the progressing circular lamella that engulfs a particle during phagocytosis. When the two lips of the cup fuse it is converted into a phagosome. | 5 |
| GO:0030094 | plasma membrane-derived photosystem I | A protein complex located in the plasma membrane-derived thylakoid. The photosystem functions as a light-dependent plastocyanin-ferredoxin oxidoreductase, transferring electrons from plastocyanin to ferredoxin. Examples of this complex are found in bacterial species. | 5 |
| GO:0031362 | anchored to external side of plasma membrane | Tethered to the plasma membrane by a covalently attached anchor, such as a lipid group, that is embedded in the membrane, with the bulk of the gene product located on the side opposite to the side that faces the cytoplasm. When used to describe a protein, indicates that the peptide sequence does not span the membrane. | 4 |
| GO:0045262 | plasma membrane proton-transporting ATP synthase complex, catalytic core F(1) | The catalytic sector of the plasma membrane hydrogen-transporting ATP synthase; it comprises the catalytic core and central stalk, and is peripherally associated with the plasma membrane when the entire ATP synthase is assembled. Examples of this component are found in Bacterial species. | 4 |
| GO:0097204 | phagocytic cup base | The older part of the phagocytic cup where the actin cytoskeleton disassembles, allowing early incoming and outgoing vesicular trafficking. | 4 |
| GO:0009921 | auxin efflux carrier complex | The protein complex associated with the plasma membrane of certain plant cells (e.g. root cortex, epidermal cells) that functions to transport auxin out of the cell. | 3 |
| GO:0032281 | alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid selective glutamate receptor complex | An 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. The AMPA receptors mediate fast synaptic transmission in the CNS and are composed of subunits GluR1-4, products from separate genes. These subunits have an extracellular N-terminus and an intracellular C-terminus. | 3 |
| GO:0008305 | integrin complex | A protein complex that is composed of one alpha subunit and one beta subunit, both of which are members of the integrin superfamily of cell adhesion receptors; the complex spans the plasma membrane and binds to extracellular matrix ligands, cell-surface ligands, and soluble ligands. | 3 |
| GO:0016027 | inaD signaling complex | A complex of proteins that are involved in phototransduction and attached to the transient receptor potential (TRP) channel. The protein connections are mediated through inaD. | 3 |
| GO:0031258 | lamellipodium membrane | The portion of the plasma membrane surrounding a lamellipodium. | 2 |
| GO:0016010 | dystrophin-associated glycoprotein complex | A multiprotein complex that forms a strong mechanical link between the cytoskeleton and extracellular matrix; typical of, but not confined to, muscle cells. The complex is composed of transmembrane, cytoplasmic, and extracellular proteins, including dystrophin, sarcoglycans, dystroglycan, dystrobrevins, syntrophins, sarcospan, caveolin-3, and NO synthase. | 2 |
| GO:0044298 | cell body membrane | The plasma membrane of a cell that bears surface projections such as axons, dendrites, cilia, or flagella, excluding the plasma membrane on cell projections. | 2 |
| GO:0031232 | extrinsic to external side of plasma membrane | Loosely bound to the surface of the plasma membrane that faces away from the cytoplasm, but not integrated into the hydrophobic region. | 1 |
| GO:0042101 | T cell receptor complex | A protein complex that contains a disulfide-linked heterodimer of T cell receptor (TCR) chains, which are members of the immunoglobulin superfamily, and mediates antigen recognition, ultimately resulting in T cell activation. The TCR heterodimer is associated with the CD3 complex, which consists of the nonpolymorphic polypeptides gamma, delta, epsilon, zeta, and, in some cases, eta (an RNA splice variant of zeta) or Fc epsilon chains. | 1 |
| GO:0035631 | CD40 receptor complex | A protein complex that contains at least CD40 (a cell surface receptor of the tumour necrosis factor receptor (TNFR) superfamily), and other signaling molecules. | 1 |
| GO:0032591 | dendritic spine membrane | The portion of the plasma membrane surrounding a dendritic spine. | 1 |
| GO:0008328 | ionotropic glutamate receptor complex | 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. | 1 |
| GO:0008076 | voltage-gated potassium channel complex | A protein complex that forms a transmembrane channel through which potassium ions may cross a cell membrane in response to changes in membrane potential. | 1 |
| GO:0005890 | sodium:potassium-exchanging ATPase complex | Sodium:potassium-exchanging ATPases are tetrameric proteins, consisting of two large alpha subunits and two smaller beta subunits. The alpha subunits bear the active site and penetrate the membrane, while the beta subunits carry oligosaccharide groups and face the cell exterior. | 1 |