| GOID Link to GO |
Functional Category | Description | Protein Count link to protein list |
|---|---|---|---|
| GO:0007052 | mitotic spindle organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the microtubule spindle during a mitotic cell cycle. | 108 |
| GO:0030866 | cortical actin cytoskeleton organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of actin-based cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane. | 85 |
| GO:0007015 | actin filament organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments. Includes processes that control the spatial distribution of actin filaments, such as organizing filaments into meshworks, bundles, or other structures, as by cross-linking. | 81 |
| GO:0000022 | mitotic spindle elongation | Lengthening of the distance between poles of the mitotic spindle. | 73 |
| GO:0051298 | centrosome duplication | The replication of a centrosome, a structure comprised of a pair of centrioles and peri-centriolar material from which a microtubule spindle apparatus is organized. | 68 |
| GO:0030036 | actin cytoskeleton organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising actin filaments and their associated proteins. | 51 |
| GO:0051225 | spindle assembly | The aggregation, arrangement and bonding together of a set of components to form the spindle, the array of microtubules and associated molecules that serves to move duplicated chromosomes apart. | 48 |
| GO:0045214 | sarcomere organization | The myofibril assembly process that results in the organization of muscle actomyosin into sarcomeres. The sarcomere is the repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs. | 48 |
| GO:0000132 | establishment of mitotic spindle orientation | A cell cycle process that sets the alignment of mitotic spindle relative to other cellular structures. | 47 |
| GO:0031034 | myosin filament assembly | The aggregation, arrangement and bonding together of a filament composed of myosin molecules. | 47 |
| GO:0031122 | cytoplasmic microtubule organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of structures formed of microtubules and associated proteins in the cytoplasm of a cell. | 46 |
| GO:0051017 | actin filament bundle assembly | 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. | 41 |
| GO:0031532 | actin cytoskeleton reorganization | A process that is carried out at the cellular level which results in dynamic structural changes to the arrangement of constituent parts of cytoskeletal structures comprising actin filaments and their associated proteins. | 41 |
| GO:0071688 | striated muscle myosin thick filament assembly | The aggregation, arrangement and bonding together of proteins to form the myosin-based thick filaments of myofibrils in striated muscle. | 40 |
| GO:0000226 | microtubule cytoskeleton organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising microtubules and their associated proteins. | 38 |
| GO:0030241 | skeletal muscle myosin thick filament assembly | The aggregation, arrangement and bonding together of proteins to form the myosin-based thick filaments of myofibrils in skeletal muscle. | 30 |
| GO:0030239 | myofibril assembly | Formation of myofibrils, the repeating units of striated muscle. | 26 |
| GO:0008103 | oocyte microtubule cytoskeleton polarization | Establishment and maintenance of a specific axis of polarity of the oocyte microtubule network. The axis is set so that the minus and plus ends of the microtubules of the mid stage oocyte are positioned along the anterior cortex and at the posterior pole, respectively. An example of this is found in Drosophila melanogaster. | 24 |
| GO:0000915 | cytokinesis, actomyosin contractile ring assembly | The process of assembly of a ring composed of actin, myosin, and associated proteins that will function in cytokinesis. | 23 |
| GO:0051297 | centrosome organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a centrosome, a structure comprised of a pair of centrioles and peri-centriolar material from which a microtubule spindle apparatus is organized. | 23 |
| GO:0055003 | cardiac myofibril assembly | The process whose specific outcome is the progression of the cardiac myofibril over time, from its formation to the mature structure. A cardiac myofibril is a myofibril specific to cardiac muscle cells. | 22 |
| GO:0030240 | skeletal muscle thin filament assembly | The aggregation, arrangement and bonding together of proteins to form the actin-based thin filaments of myofibrils in skeletal muscle. | 22 |
| GO:0000212 | meiotic spindle organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the microtubule spindle during a meiotic cell cycle. | 21 |
| GO:0090307 | spindle assembly involved in mitosis | The aggregation, arrangement and bonding together of a set of components to form the spindle that contributes to the process of mitosis. | 19 |
| GO:0007019 | microtubule depolymerization | The removal of tubulin heterodimers from one or both ends of a microtubule. | 18 |
| GO:0043149 | stress fiber assembly | The aggregation, arrangement and bonding together of a set of components to form a stress fiber. A stress fiber is a contractile actin filament bundle that consists of short actin filaments with alternating polarity. | 16 |
| GO:0030041 | actin filament polymerization | Assembly of actin filaments by the addition of actin monomers to a filament. | 15 |
| GO:0001578 | microtubule bundle formation | A process that results in a parallel arrangement of microtubules. | 15 |
| GO:0034314 | Arp2/3 complex-mediated actin nucleation | The actin nucleation process in which actin monomers combine to form a new branch on the side of an existing actin filament; mediated by the Arp2/3 protein complex and its interaction with other proteins. | 13 |
| GO:0048769 | sarcomerogenesis | The process in which sarcomeres are added in series within a fiber. | 12 |
| GO:0051228 | mitotic spindle disassembly | The controlled breakdown of the spindle during a mitotic cell cycle. | 12 |
| GO:0051299 | centrosome separation | The process in which duplicated centrosome components move away from each other. The centriole pair within each centrosome becomes part of a separate microtubule organizing center that nucleates a radial array of microtubules called an aster. The two asters move to opposite sides of the nucleus to form the two poles of the mitotic spindle. | 10 |
| GO:0007051 | spindle organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the spindle, the array of microtubules and associated molecules that forms between opposite poles of a eukaryotic cell during DNA segregation and serves to move the duplicated chromosomes apart. | 10 |
| GO:0046785 | microtubule polymerization | The addition of tubulin heterodimers to one or both ends of a microtubule. | 10 |
| GO:0030037 | actin filament reorganization involved in cell cycle | The cell cycle process in which rearrangement of the spatial distribution of actin filaments and associated proteins occurs. | 9 |
| GO:0051295 | establishment of meiotic spindle localization | The cell cycle process in which the directed movement of the meiotic spindle to a specific location in the cell occurs. | 9 |
| GO:0007099 | centriole replication | The cell cycle process in which a daughter centriole is formed perpendicular to an existing centriole. An immature centriole contains a ninefold radially symmetric array of single microtubules; mature centrioles consist of a radial array of nine microtubule triplets, doublets, or singlets depending upon the species and cell type. | 8 |
| GO:0051315 | attachment of spindle microtubules to kinetochore involved in mitotic sister chromatid segregation | The cell cycle process in which spindle microtubules become physically associated with the proteins making up the kinetochore complex during mitosis. During mitosis, the kinetochores of sister chromosomes are situated facing opposite spindle poles and bipolar attachment of the sister chromosomes to the spindle occurs. | 8 |
| GO:0031134 | sister chromatid biorientation | The cell cycle process in which sister chromatids establish stable attachments to microtubules emanating from opposite spindle poles. | 8 |
| GO:0090135 | actin filament branching | The formation of daughter actin filament branches at an angle on the sides of preexisting mother filaments. | 7 |
| GO:0007016 | cytoskeletal anchoring at plasma membrane | A cytoskeleton organization process that directly or indirectly links cytoskeletal filaments to the plasma membrane. | 7 |
| GO:0007098 | centrosome cycle | The cell cycle process in which centrosome duplication and separation takes place. The centrosome cycle can operate with a considerable degree of independence from other processes of the cell cycle. | 6 |
| GO:0030950 | establishment or maintenance of actin cytoskeleton polarity | Any cellular process that results in the specification, formation or maintenance of polarized actin-based cytoskeletal structures. | 6 |
| GO:0040001 | establishment of mitotic spindle localization | The cell cycle process in which the directed movement of the mitotic spindle to a specific location in the cell occurs. | 6 |
| GO:0051300 | spindle pole body organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the spindle pole body (SPB). The SPB is the microtubule organizing center in fungi, and is functionally homologous to the animal cell centrosome. | 5 |
| GO:0035044 | sperm aster formation | Formation and organization of an aster composed of microtubule arrays originating from the sperm basal body and extending virtually to the egg periphery. The sperm aster ensures the appropriate positioning of the male and female pronuclei. | 5 |
| GO:0008302 | female germline ring canal formation, actin assembly | Recruitment and organization of actin filaments in female germline ring canals. | 5 |
| GO:0051294 | establishment of spindle orientation | Any process that set the alignment of spindle relative to other cellular structures. | 5 |
| GO:0030042 | actin filament depolymerization | Disassembly of actin filaments by the removal of actin monomers from a filament. | 5 |
| GO:0008608 | attachment of spindle microtubules to kinetochore | The process in which spindle microtubules become physically associated with the proteins making up the kinetochore complex. | 5 |
| GO:0034454 | microtubule anchoring at centrosome | Any process in which a microtubule is maintained in a specific location in a cell by attachment to a centrosome. | 5 |
| GO:0031032 | actomyosin structure organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures containing both actin and myosin or paramyosin. The myosin may be organized into filaments. | 5 |
| GO:0014866 | skeletal myofibril assembly | The process whose specific outcome is the progression of the skeletal myofibril over time, from its formation to the mature structure. A skeletal myofibril is a myofibril specific to skeletal muscle cells. | 5 |
| GO:0030865 | cortical cytoskeleton organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane. | 5 |
| GO:0051764 | actin crosslink formation | The process in which two or more actin filaments are connected together by proteins that act as crosslinks between the filaments. The crosslinked filaments may be on the same or differing axes. | 5 |
| GO:0051455 | attachment of spindle microtubules to kinetochore involved in homologous chromosome segregation | The process in which spindle microtubules become physically associated with the proteins making up the kinetochore complex during meiosis I. During meiosis I sister kinetochores are lying next to each other facing the same spindle pole and monopolar attachment of the chromatid to the spindle occurs. | 4 |
| GO:0000147 | actin cortical patch assembly | Assembly of an actin cortical patch, a discrete actin-containing structure found at the plasma membrane of fungal cells. | 4 |
| GO:0031289 | actin phosphorylation | The transfer of one or more phosphate groups to an actin molecule. | 4 |
| GO:0043622 | cortical microtubule organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of structures formed of microtubules and associated proteins in the cell cortex, i.e. just beneath the plasma membrane of a cell. | 4 |
| GO:0007020 | microtubule nucleation | The 'de novo' formation of a microtubule, in which tubulin heterodimers form metastable oligomeric aggregates, some of which go on to support formation of a complete microtubule. Microtubule nucleation usually occurs from a specific site within a cell. | 4 |
| GO:0051229 | meiotic spindle disassembly | The controlled breakdown of the spindle during a meiotic cell cycle. | 4 |
| GO:0031322 | ascospore-type prospore-specific spindle pole body remodeling | A spindle pole body (SPB) organization process that takes place during the second meiotic division during ascospore formation and results in the structural reorganization of the SPB; includes the recruitment of sporulation-specific proteins to the outer plaque to form the meiotic outer plaque (MOP). | 4 |
| GO:0030043 | actin filament fragmentation | The severing of actin filaments into numerous short fragments, usually mediated by actin severing proteins. | 4 |
| GO:0090286 | cytoskeletal anchoring at nuclear membrane | The process in which cytoskeletal filaments are directly or indirectly linked to the nuclear membrane. | 4 |
| GO:0090176 | microtubule cytoskeleton organization involved in establishment of planar polarity | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising microtubules and their associated proteins and contributes to the establishment of planar polarity. | 4 |
| GO:0045010 | actin nucleation | The initial step in the formation of an actin filament, in which actin monomers combine to form a new filament. Nucleation is slow relative to the subsequent addition of more monomers to extend the filament. | 4 |
| GO:0031247 | actin rod assembly | The assembly of actin rods, a cellular structure consisting of parallel, hexagonally arranged actin tubules. | 4 |
| GO:0051256 | spindle midzone assembly involved in mitosis | The formation of the spindle midzone, the area in the center of the spindle where the spindle microtubules from opposite poles overlap, as a part of the process of mitosis. | 3 |
| GO:0010457 | centriole-centriole cohesion | The process in which the two centrioles within a centrosome remain tightly paired. | 3 |
| GO:0007057 | spindle assembly involved in female meiosis I | The aggregation, arrangement and bonding together of a set of components to form the spindle during meiosis I of a meiotic cell cycle in females. An example of this is found in Drosophila melanogaster. | 3 |
| GO:0007288 | sperm axoneme assembly | The assembly and organization of the sperm flagellar axoneme, the bundle of microtubules and associated proteins that forms the core of the eukaryotic sperm flagellum, and is responsible for movement. | 3 |
| GO:0008154 | actin polymerization or depolymerization | Assembly or disassembly of actin filaments by the addition or removal of actin monomers from a filament. | 3 |
| GO:0016325 | oocyte microtubule cytoskeleton organization | Formation and maintenance of a polarized microtubule array originating from a microtubule-organizing center (MTOC) in the oocyte. An example of this is found in Drosophila melanogaster. | 3 |
| GO:0007100 | mitotic centrosome separation | Separation of duplicated centrosome components at the beginning of mitosis. The centriole pair within each centrosome becomes part of a separate microtubule organizing center that nucleates a radial array of microtubules called an aster. The two asters move to opposite sides of the nucleus to form the two poles of the mitotic spindle. | 3 |
| GO:0031023 | microtubule organizing center organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a microtubule organizing center, a structure from which microtubules grow. | 3 |
| GO:0051316 | attachment of spindle microtubules to kinetochore involved in meiotic chromosome segregation | The cell cycle process in which spindle microtubules become physically associated with the proteins making up the kinetochore complex contributing to meiotic chromosome segregation. | 2 |
| GO:0030952 | establishment or maintenance of cytoskeleton polarity | Any cellular process that results in the specification, formation or maintenance of polarized cytoskeletal structures. | 2 |
| GO:0008335 | female germline ring canal stabilization | Maintenance of the structural integrity of the ring canals connecting the female germline cyst. | 2 |
| GO:0048789 | cytoskeletal matrix organization at active zone | The assembly and arrangement of cytomatrix proteins to form complexes in the cell cortex beneath the active zone, i.e. just beneath the presynaptic plasma membrane. | 2 |
| GO:0000914 | phragmoplast assembly | The formation of a structure composed of actin, myosin, and associated proteins that will function in cytokinesis in cells that perform cytokinesis by cell plate formation. The structure usually contains antiparallel microtubules and membrane (often visible as vesicles). | 2 |
| GO:0030472 | mitotic spindle organization in nucleus | A process resulting in the assembly, arrangement of constituent parts, or disassembly of the microtubule spindle in the nucleus. The process occurs during a mitotic cell cycle and takes place at the cellular level. | 2 |
| GO:0043147 | meiotic spindle stabilization | The cell cycle process in which spindle integrity is maintained during M phase of meiosis. | 2 |
| GO:0030046 | parallel actin filament bundle assembly | Assembly of actin filament bundles in which the filaments are tightly packed (approximately 10-20 nm apart) and oriented with the same polarity. | 2 |
| GO:0030038 | contractile actin filament bundle assembly | Assembly of actin filament bundles in which the filaments are loosely packed (approximately 30-60 nm apart) and arranged with opposing polarities; the loose packing allows myosin (usually myosin-II) to enter the bundle. | 2 |
| GO:0055005 | ventricular cardiac myofibril development | The process whose specific outcome is the progression of the ventricular cardiac myofibril over time, from its formation to the mature structure. A cardiac myofibril is a myofibril specific to cardiac muscle cells. | 2 |
| GO:0032053 | microtubule basal body organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a microtubule basal body, a short cylindrical array of microtubules and associated proteins found at the base of a eukaryotic cilium or flagellum. | 2 |
| GO:0045109 | intermediate filament organization | Control of the spatial distribution of intermediate filaments; includes organizing filaments into meshworks, bundles, or other structures, as by cross-linking. | 2 |
| GO:0030997 | regulation of centriole-centriole cohesion | Any process that modulates the extent to which the two centrioles within a centrosome remain tightly paired; may be mediated by the assembly and disassembly of a proteinaceous linker. | 1 |
| GO:0007103 | spindle pole body duplication associated with nuclear envelope | Construction of a new spindle pole body adjacent to the existing spindle pole body occurring at or near the nuclear envelope; usually occurs about the time of bud emergence. An example of this is found in Saccharomyces cerevisiae. | 1 |
| GO:0030953 | astral microtubule organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of astral microtubules, any of the spindle microtubules that radiate in all directions from the spindle poles. | 1 |
| GO:0051417 | microtubule nucleation by spindle pole body | The 'de novo' formation of a microtubule, mediated by the spindle pole body. | 1 |
| GO:0030951 | establishment or maintenance of microtubule cytoskeleton polarity | Any cellular process that results in the specification, formation or maintenance of polarized microtubule-based cytoskeletal structures. | 1 |
| GO:0035083 | cilium axoneme assembly | The assembly of a the bundle of microtubules and associated proteins that forms the core of cilia in eukaryotic cells and is responsible for their movements. | 1 |
| GO:0097107 | postsynaptic density assembly | The aggregation, arrangement and bonding together of a set of components to form a postsynaptic density, a region that lies adjacent to the cytoplasmic face of the postsynaptic membrane at excitatory synapse. | 1 |
| GO:0060052 | neurofilament cytoskeleton organization | A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of cytoskeletal structures comprising neurofilaments and their associated proteins. | 1 |
| GO:0007053 | spindle assembly involved in male meiosis | The aggregation, arrangement and bonding together of a set of components to form the spindle during a meiotic cell cycle in males. An example of this is found in Drosophila melanogaster. | 1 |
| GO:0051230 | spindle disassembly | The controlled breakdown of the spindle, the array of microtubules and associated molecules that serves to move duplicated chromosomes apart. | 1 |
| GO:0030034 | microvillar actin bundle assembly | Assembly of the parallel bundle of actin filaments at the core of a microvillus. | 1 |