molecular function |
| GO:0043531 | | ADP binding | | Interacting selectively and non-covalently with ADP, adenosine 5'-diphosphate. |
| GO:0005524 | | ATP binding | | Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator. |
| GO:0016887 | | ATPase activity | | Catalysis of the reaction: ATP + H2O = ADP + phosphate + 2 H+. May or may not be coupled to another reaction. |
| GO:0042626 | | ATPase activity, coupled to transmembrane movement of substances | | Catalysis of the reaction: ATP + H2O = ADP + phosphate, to directly drive the active transport of a substance across a membrane. |
| GO:0042288 | | MHC class I protein binding | | Interacting selectively and non-covalently with major histocompatibility complex class I molecules; a set of molecules displayed on cell surfaces that are responsible for lymphocyte recognition and antigen presentation. |
| GO:0023029 | | MHC class Ib protein binding | | Interacting selectively and non-covalently with major histocompatibility complex class Ib molecules. |
| GO:0042287 | | MHC protein binding | | Interacting selectively and non-covalently with major histocompatibility complex molecules; a set of molecules displayed on cell surfaces that are responsible for lymphocyte recognition and antigen presentation. |
| GO:0046978 | | TAP1 binding | | Interacting selectively and non-covalently with the TAP1 subunit of TAP (transporter associated with antigen processing) protein. |
| GO:0046979 | | TAP2 binding | | Interacting selectively and non-covalently with the TAP2 subunit of TAP (transporter associated with antigen processing) protein. |
| GO:0000166 | | nucleotide binding | | Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose. |
| GO:0042605 | | peptide antigen binding | | Interacting selectively and non-covalently with an antigen peptide. |
| GO:0015197 | | peptide transporter activity | | Enables the directed movement of peptides, compounds of two or more amino acids where the alpha carboxyl group of one is bound to the alpha amino group of another, into, out of or within a cell, or between cells. |
| GO:0015440 | | peptide-transporting ATPase activity | | Catalysis of the reaction: ATP + H2O + peptide(in) = ADP + phosphate + peptide(out). Peptides exported include alpha-hemolysin, cyclolysin, colicin V and siderophores from Gram-negative bacteria, and bacteriocin, subtilin, competence factor and pediocin from Gram-positive bacteria. |
| GO:0005515 | | protein binding | | Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules). |
| GO:0046982 | | protein heterodimerization activity | | Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer. |
| GO:0042803 | | protein homodimerization activity | | Interacting selectively and non-covalently with an identical protein to form a homodimer. |
| GO:0046980 | | tapasin binding | | Interacting selectively and non-covalently with tapasin, a member of the MHC class I loading complex which bridges the TAP peptide transporter to class I molecules. |
biological process |
| GO:0002250 | | adaptive immune response | | An immune response mediated by cells expressing specific receptors for antigen produced through a somatic diversification process, and allowing for an enhanced secondary response to subsequent exposures to the same antigen (immunological memory). |
| GO:0019885 | | antigen processing and presentation of endogenous peptide antigen via MHC class I | | The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex. The peptide antigen is typically, but not always, processed from a whole protein. Class I here refers to classical class I molecules. |
| GO:0002485 | | antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-dependent | | The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class I protein complex following intracellular transport via a TAP-dependent ER pathway. The peptide is typically a fragment of a larger endogenous protein which has been degraded within the cell and becomes associated with the MHC class I molecule in the ER following TAP-dependent transport from the cytosol. Class I here refers to classical class I molecules. |
| GO:0002489 | | antigen processing and presentation of endogenous peptide antigen via MHC class Ib via ER pathway, TAP-dependent | | The process in which an antigen-presenting cell expresses a peptide antigen of endogenous origin on its cell surface in association with an MHC class Ib protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger endogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class Ib molecule. Class Ib here refers to non-classical class I molecules, such as those of the HLA-E gene family. |
| GO:0002481 | | antigen processing and presentation of exogenous protein antigen via MHC class Ib, TAP-dependent | | The process in which an antigen-presenting cell expresses a peptide antigen of exogenous origin on its cell surface in association with an MHC class Ib protein complex following intracellular transport via a TAP (transporter associated with antigen processing) pathway. The peptide is typically a fragment of a larger exogenous protein which has been degraded within the cell and is dependent on TAP transport from the cytosol to ER for association with the MHC class Ib molecule. Class Ib here refers to non-classical class I molecules, such as those of the HLA-E gene family. |
| GO:0002474 | | antigen processing and presentation of peptide antigen via MHC class I | | The process in which an antigen-presenting cell expresses a peptide antigen on its cell surface in association with an MHC class I protein complex. Class I here refers to classical class I molecules. |
| GO:0046967 | | cytosol to ER transport | | The directed movement of substances from the cytosol to the endoplasmic reticulum of a cell. |
| GO:0006952 | | defense response | | Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack. |
| GO:0002376 | | immune system process | | Any process involved in the development or functioning of the immune system, an organismal system for calibrated responses to potential internal or invasive threats. |
| GO:0019060 | | intracellular transport of viral protein in host cell | | The directed movement of a viral protein within the host cell. |
| GO:0015833 | | peptide transport | | The directed movement of peptides, compounds of two or more amino acids where the alpha carboxyl group of one is bound to the alpha amino group of another, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
| GO:0002591 | | positive regulation of antigen processing and presentation of peptide antigen via MHC class I | | Any process that activates or increases the frequency, rate, or extent of antigen processing and presentation of peptide antigen via MHC class I. |
| GO:0042270 | | protection from natural killer cell mediated cytotoxicity | | The process of protecting a cell from natural killer cell mediated cytotoxicity. |
| GO:0015031 | | protein transport | | The directed movement of proteins into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. |
| GO:0055085 | | transmembrane transport | | The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other |
| GO:0006810 | | transport | | The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein. |
| GO:0016032 | | viral process | | A multi-organism process in which a virus is a participant. The other participant is the host. Includes infection of a host cell, replication of the viral genome, and assembly of progeny virus particles. In some cases the viral genetic material may integrate into the host genome and only subsequently, under particular circumstances, 'complete' its life cycle. |
cellular component |
| GO:0042825 | | TAP complex | | A heterodimer composed of the subunits TAP1 and TAP2 (transporter associated with antigen presentation). Functions in the transport of antigenic peptides from the cytosol to the lumen of the endoplasmic reticulum. |
| GO:0005783 | | endoplasmic reticulum | | The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached). |
| GO:0005789 | | endoplasmic reticulum membrane | | The lipid bilayer surrounding the endoplasmic reticulum. |
| GO:0043657 | | host cell | | A cell within a host organism. Includes the host plasma membrane and any external encapsulating structures such as the host cell wall and cell envelope. |
| GO:0030176 | | integral component of endoplasmic reticulum membrane | | The component of the endoplasmic reticulum 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. |
| GO:0016021 | | integral component of membrane | | 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. |
| GO:0043231 | | intracellular membrane-bounded organelle | | 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. |
| GO:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| GO:0005739 | | mitochondrion | | A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration. |