| GO term | GO name | GO namespace | GO def |
| GO:0017124 | SH3 domain binding | molecular_function | Binding to a SH3 domain (Src homology 3) of a protein, small protein modules containing approximately 50 amino acid residues found in a great variety of intracellular or membrane-associated proteins. [GOC:go_curators, Pfam:PF00018] |
| GO:0051015 | actin filament binding | molecular_function | Binding to an actin filament, also known as F-actin, a helical filamentous polymer of globular G-actin subunits. [ISBN:0198506732] |
| GO:0007605 | sensory perception of sound | biological_process | The series of events required for an organism to receive an auditory stimulus, convert it to a molecular signal, and recognize and characterize the signal. Sonic stimuli are detected in the form of vibrations and are processed to form a sound. [GOC:ai] |
| GO:0030034 | microvillar actin bundle assembly | biological_process | Assembly of the parallel bundle of actin filaments at the core of a microvillus. [GOC:mah] |
| GO:0005902 | microvillus | cellular_component | Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments. Present in especially large numbers on the absorptive surface of intestinal cells. [ISBN:0815316194] |
| GO:0005903 | brush border | cellular_component | The dense covering of microvilli on the apical surface of an epithelial cell in tissues such as the intestine, kidney, and choroid plexus; the microvilli aid absorption by increasing the surface area of the cell. [GOC:sl, ISBN:0815316194] |
| GO:0032420 | stereocilium | cellular_component | An actin-based protrusion from the apical surface of auditory and vestibular hair cells and of neuromast cells. These protrusions are supported by a bundle of cross-linked actin filaments (an actin cable), oriented such that the plus (barbed) ends are at the tip of the protrusion, capped by a tip complex which bridges to the plasma. Bundles of stereocilia act as mechanosensory organelles. [GOC:ecd, PMID:15661519, PMID:7840137] |
| GO:0032426 | stereocilium tip | cellular_component | A distinct compartment at the tip of a stereocilium, distal to the site of attachment to the apical cell surface. It consists of a dense matrix bridging the barbed ends of the stereocilium actin filaments with the overlying plasma membrane, is dynamic compared to the shaft, and is required for stereocilium elongation. [GOC:ecd, GOC:krc, PMID:17021180, PMID:27565685] |
| GO:0031941 | filamentous actin | cellular_component | A two-stranded helical polymer of the protein actin. [GOC:mah] |
| GO:0051017 | actin filament bundle assembly | biological_process | The assembly of actin filament bundles; actin filaments are on the same axis but may be oriented with the same or opposite polarities and may be packed with different levels of tightness. [GOC:ai] |
| GO:0005737 | cytoplasm | cellular_component | The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. [ISBN:0198547684] |