molecular function |
| GO:0052794 | | exo-alpha-(2->3)-sialidase activity | | Catalysis of the hydrolysis of alpha-(2->3)-glycosidic linkages of terminal sialic residues in substrates. |
| GO:0052795 | | exo-alpha-(2->6)-sialidase activity | | Catalysis of the hydrolysis of alpha-(2->6)-glycosidic linkages of terminal sialic residues in substrates. |
| GO:0052796 | | exo-alpha-(2->8)-sialidase activity | | Catalysis of the hydrolysis of alpha-(2->8)-glycosidic linkages of terminal sialic residues in substrates. |
| GO:0004308 | | exo-alpha-sialidase activity | | Catalysis of the hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)-glycosidic linkages of terminal sialic residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates. |
| GO:0046789 | | host cell surface receptor binding | | Interacting selectively and non-covalently with a receptor on the host cell surface. |
| GO:0016787 | | hydrolase activity | | Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3. |
biological process |
| GO:0046761 | | viral budding from plasma membrane | | A viral budding that starts with formation of a membrane curvature in the host plasma membrane. |
| GO:0046718 | | viral entry into host cell | | The process that occurs after viral attachment by which a virus, or viral nucleic acid, breaches the plasma membrane or cell envelope and enters the host cell. The process ends when the viral nucleic acid is released into the host cell cytoplasm. |
| GO:0019058 | | viral life cycle | | A set of processes which all viruses follow to ensure survival; includes attachment and entry of the virus particle, decoding of genome information, translation of viral mRNA by host ribosomes, genome replication, and assembly and release of viral particles containing the genome. |
| 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. |
| GO:0019062 | | virion attachment to host cell | | The process by which a virion protein binds to molecules on the host cellular surface or host cell surface projection. |
cellular component |
| GO:0033644 | | host cell membrane | | Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction. |
| GO:0020002 | | host cell plasma membrane | | The plasma membrane surrounding a host cell. |
| 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:0016020 | | membrane | | A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it. |
| GO:0019031 | | viral envelope | | The lipid bilayer of a virion that surrounds the protein capsid. May also contain glycoproteins. |
| GO:0019012 | | virion | | The complete fully infectious extracellular virus particle. |
| GO:0055036 | | virion membrane | | The lipid bilayer surrounding a virion. |