EOG8RFP6G GO:0030036 18/95 actin cytoskeleton organization biological_process "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." [GOC:dph, GOC:jl, GOC:mah] EOG8RFP6G GO:0045010 7/95 actin nucleation biological_process "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." [ISBN:0815316194] EOG8RFP6G GO:0005884 7/95 actin filament cellular_component "A filamentous structure formed of a two-stranded helical polymer of the protein actin and associated proteins. Actin filaments are a major component of the contractile apparatus of skeletal muscle and the microfilaments of the cytoskeleton of eukaryotic cells. The filaments, comprising polymerized globular actin molecules, appear as flexible structures with a diameter of 5-9 nm. They are organized into a variety of linear bundles, two-dimensional networks, and three dimensional gels. In the cytoskeleton they are most highly concentrated in the cortex of the cell just beneath the plasma membrane." [GOC:mah, ISBN:0198506732, PMID:10666339] EOG8RFP6G GO:0005524 1/95 ATP binding molecular_function "Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator." [ISBN:0198506732] EOG8RFP6G GO:0004674 1/95 protein serine/threonine kinase activity molecular_function "Catalysis of the reactions: ATP + protein serine = ADP + protein serine phosphate, and ATP + protein threonine = ADP + protein threonine phosphate." [GOC:bf] EOG8RFP6G GO:0046854 1/95 phosphatidylinositol phosphorylation biological_process "The process of introducing one or more phosphate groups into a phosphatidylinositol, any glycerophosphoinositol having one phosphatidyl group esterified to one of the hydroxy groups of inositol." [ISBN:0198506732] EOG8RFP6G GO:0005856 1/95 cytoskeleton cellular_component "Any of the various filamentous elements that form the internal framework of cells, and typically remain after treatment of the cells with mild detergent to remove membrane constituents and soluble components of the cytoplasm. The term embraces intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles." [GOC:mah, ISBN:0198547684, PMID:16959967] EOG8RFP6G GO:0016620 1/95 oxidoreductase activity, acting on the aldehyde or oxo group of donors, NAD or NADP as acceptor molecular_function "Catalysis of an oxidation-reduction (redox) reaction in which an aldehyde or ketone (oxo) group acts as a hydrogen or electron donor and reduces NAD or NADP." [GOC:jl] EOG8RFP6G GO:0003779 1/95 actin binding molecular_function "Interacting selectively and non-covalently with monomeric or multimeric forms of actin, including actin filaments." [GOC:clt] EOG8RFP6G GO:0048812 1/95 neuron projection morphogenesis biological_process "The process in which the anatomical structures of a neuron projection are generated and organized. A neuron projection is any process extending from a neural cell, such as axons or dendrites." [GOC:mah] EOG8RFP6G GO:0030833 1/95 regulation of actin filament polymerization biological_process "Any process that modulates the frequency, rate or extent of the assembly of actin filaments by the addition of actin monomers to a filament." [GOC:mah]