| molecular function |
| | GO:0003823 | | antigen binding | | Interacting selectively and non-covalently with an antigen, any substance which is capable of inducing a specific immune response and of reacting with the products of that response, the specific antibody or specifically sensitized T-lymphocytes, or both. Binding may counteract the biological activity of the antigen. |
| | GO:0042605 | | peptide antigen binding | | Interacting selectively and non-covalently with an antigen peptide. |
| | 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:0008320 | | protein transmembrane transporter activity | | Enables the transfer of a protein from one side of a membrane to the other. |
| | GO:0004540 | | ribonuclease activity | | Catalysis of the hydrolysis of phosphodiester bonds in chains of RNA. |
| biological process |
| | GO:0090501 | | RNA phosphodiester bond hydrolysis | | The RNA metabolic process in which the phosphodiester bonds between ribonucleotides are cleaved by hydrolysis. |
| | GO:0019882 | | antigen processing and presentation | | The process in which an antigen-presenting cell expresses antigen (peptide or lipid) on its cell surface in association with an MHC protein complex. |
| | 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:0007155 | | cell adhesion | | The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules. |
| | GO:0001580 | | detection of chemical stimulus involved in sensory perception of bitter taste | | The series of events required for a bitter taste stimulus to be received and converted to a molecular signal. |
| | GO:0006955 | | immune response | | Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat. |
| | GO:0008285 | | negative regulation of cell proliferation | | Any process that stops, prevents or reduces the rate or extent of cell proliferation. |
| | GO:0071806 | | protein transmembrane transport | | The directed movement of a protein across a membrane by means of some agent such as a transporter or pore. |
| | GO:0001895 | | retina homeostasis | | A tissue homeostatic process involved in the maintenance of an internal equilibrium within the retina of the eye, including control of cellular proliferation and death and control of metabolic function. |
| | 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 |
| cellular component |
| | GO:0042612 | | MHC class I protein complex | | A transmembrane protein complex composed of a MHC class I alpha chain and an invariant beta2-microglobin chain, and with or without a bound peptide antigen. Class I here refers to classical class I molecules. |
| | GO:0070062 | | extracellular exosome | | A vesicle that is released into the extracellular region by fusion of the limiting endosomal membrane of a multivesicular body with the plasma membrane. Extracellular exosomes, also simply called exosomes, have a diameter of about 40-100 nm. |
| | GO:0005576 | | extracellular region | | The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite. |
| | GO:0005615 | | extracellular space | | That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid. |
| | GO:0005634 | | nucleus | | A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent. |
| | GO:0005886 | | plasma membrane | | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. |