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  2. Protein filament - Wikipedia

    en.wikipedia.org/wiki/Protein_filament

    In biology, a protein filament is a long chain of protein monomers, such as those found in hair, muscle, or in flagella. [1] Protein filaments form together to make the cytoskeleton of the cell. They are often bundled together to provide support, strength, and rigidity to the cell.

  3. Microfilament - Wikipedia

    en.wikipedia.org/wiki/Microfilament

    To generate a new filament, Arp2/3 requires a "mother" filament, monomeric ATP-actin, and an activating domain from Listeria ActA or the VCA region of N-WASP. The Arp2/3 complex binds to the side of the mother filament, forming a Y-shaped branch having a 70-degree angle with respect to the longitudinal axis of the mother filament. Then upon ...

  4. Cytoskeleton - Wikipedia

    en.wikipedia.org/wiki/Cytoskeleton

    It is composed of three main components: microfilaments, intermediate filaments, and microtubules, and these are all capable of rapid growth and or disassembly depending on the cell's requirements. [3] A multitude of functions can be performed by the cytoskeleton.

  5. Intermediate filament - Wikipedia

    en.wikipedia.org/wiki/Intermediate_filament

    Intermediate filaments are composed of a family of related proteins sharing common structural and sequence features. Initially designated 'intermediate' because their average diameter (10 nm ) is between those of narrower microfilaments (actin) and wider myosin filaments found in muscle cells, the diameter of intermediate filaments is now ...

  6. Actin - Wikipedia

    en.wikipedia.org/wiki/Actin

    Actin's primary role in the cell is to form linear polymers called microfilaments that serve various functions in the cell's structure, trafficking networks, migration, and replication. [7] The multifaceted role of actin relies on a few of the microfilaments' properties: First, the formation of actin filaments is reversible, and their function ...

  7. Neurofilament - Wikipedia

    en.wikipedia.org/wiki/Neurofilament

    The protein composition of neurofilaments varies widely across different animal phyla. Most is known about mammalian neurofilaments. Historically, mammalian neurofilaments were originally thought to be composed of just three proteins called neurofilament protein NF-L (low molecular weight; NF-L), NF-M (medium molecular weight; NF-M) and NF-H (high molecular weight; NF-H).

  8. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    Golgi apparatus: The primary function of the Golgi apparatus is to process and package the macromolecules such as proteins and lipids that are synthesized by the cell. Lysosomes and peroxisomes: Lysosomes contain digestive enzymes (acid hydrolases). They digest excess or worn-out organelles, food particles, and engulfed viruses or bacteria.

  9. Filament - Wikipedia

    en.wikipedia.org/wiki/Filament

    Myofilament, filaments of myofibrils constructed from proteins; Protein filament, a long chain of protein subunits, such as those found in hair or muscle; Part of a stamen, the male part of a flower; Hypha, a thread-like cell in fungi and Actinobacteria; Filamentation, an elongation of individual bacterial cells

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