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GO:0005737
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cytoplasm
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The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. |
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GO:0005575
|
cellular_component
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A location, relative to cellular compartments and structures, occupied by a macromolecular machine. There are three types of cellular components described in the gene ontology: (1) the cellular anatomical entity where a gene product carries out a molecular function (e.g., plasma membrane, cytoskeleton) or membrane-enclosed compartments (e.g., mitochondrion); (2) virion components, where viral proteins act, and (3) the stable macromolecular complexes of which gene product are parts (e.g., the clathrin complex). |
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GO:0005622
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intracellular anatomical structure
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A component of a cell contained within (but not including) the plasma membrane. In eukaryotes it includes the nucleus and cytoplasm. |
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GO:0110165
|
cellular anatomical structure
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A part of a cellular organism consisting of a material entity with granularity above the level of a protein complex but below that of an anatomical system. Note that cellular organisms exclude viruses. |
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GO:0043226
|
organelle
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Organized structure of distinctive morphology and function. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton, and prokaryotic structures such as anammoxosomes and pirellulosomes. Excludes the plasma membrane. |
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GO:0043229
|
intracellular organelle
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Organized structure of distinctive morphology and function, occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton. Excludes the plasma membrane. |
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GO:0043228
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membraneless organelle
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Organized structure of distinctive morphology and function, not bounded by a lipid bilayer membrane. Includes ribosomes, the cytoskeleton and chromosomes. |
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GO:0043232
|
intracellular membraneless organelle
|
Organized structure of distinctive morphology and function, not bounded by a lipid bilayer membrane and occurring within the cell. Includes ribosomes, the cytoskeleton and chromosomes. |
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GO:0015629
|
actin cytoskeleton
|
The part of the cytoskeleton (the internal framework of a cell) composed of actin and associated proteins. Includes actin cytoskeleton-associated complexes. |
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GO:0005856
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cytoskeleton
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A cellular structure that forms the internal framework of eukaryotic and prokaryotic cells. The cytoskeleton includes 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. |
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GO:0099080
|
supramolecular complex
|
A cellular component that consists of an indeterminate number of proteins or macromolecular complexes, organized into a regular, higher-order structure such as a polymer, sheet, network or a fiber. |
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GO:0099512
|
supramolecular fiber
|
A polymer consisting of an indefinite number of protein or protein complex subunits that have polymerised to form a fiber-shaped structure. |
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GO:0099081
|
supramolecular polymer
|
A polymeric supramolecular structure. |
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GO:0043292
|
contractile muscle fiber
|
Fibers, composed of actin, myosin, and associated proteins, found in cells of smooth or striated muscle. |
|
GO:0005865
|
striated muscle thin filament
|
Filaments formed of actin and associated proteins; attached to Z discs at either end of sarcomeres in myofibrils. |
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GO:0030016
|
myofibril
|
The contractile element of skeletal and cardiac muscle; a long, highly organized bundle of actin, myosin, and other proteins that contracts by a sliding filament mechanism. |
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GO:0030017
|
sarcomere
|
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. |
|
GO:0036379
|
myofilament
|
Any of the smallest contractile units of a myofibril (striated muscle fiber). |
