Examples of keratin in the following topics:
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- A desmosome is a type of cell junction that attaches to keratin in the cytoplasm and is a localized structure adjoining two cells.
- A desmosome , also known as macula adherens, is a type of cell junction that attaches to filaments of keratin in the cytoplasm and is characterized by a localized patch that holds two cells tightly together.
- The Inner Dense Plaque is where desmoplakin attaches to the keratin filaments inside the cell.
- The symptoms of the diseases are caused by the subsequent disruption to the desmosome-keratin filament complex leading to a breakdown in cell adhesion in the skin.
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- Finger nails are made of keratin and they perform two major functions: protection and sensation.
- The fingernail is an important structure made of keratin.
- The nail plate is the actual fingernail, composed of translucent keratin.
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- This protein
is appropriately called keratin.
- Keratin
makes our skin tough and provides us with much-needed protection from
microorganisms, physical harm, and chemical irritation.
- The keratinocytes produce a lot of keratin in
this layer—they become
filled with keratin.
- This process is
known as keratinization.
- They are dead skin cells
filled with the tough protein keratin.
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- In keratinized epithelia, the most apical layers (exterior) of cells are dead and lose their nucleus and cytoplasm.
- They contain a tough, resistant protein called keratin.
- The lining of the esophagus is an example of a non-keratinized or moist stratified epithelium.
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- Together, the HD-anchoring filament complex forms a continuous structural link between the basal keratinocyte keratin intermediate filaments and the underlying basement membrane zone (BMZ) and dermal components.
- An example configuration of a hemidesmosome might consist of cytosolic keratin, non-covalently bonded to a cytosolic plectin plaque, which is bonded to a single-pass transmembrane adhesion molecule such as the α6β4 integrin.
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- Keratin cytoskeletal intermediate filaments are concentrated around the edge of the cells and merge into the surface membrane.
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- These older cells die
and become keratinized in the process.
- This
means that most hair is made up of protein (keratin).
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- This is the layer where part of keratin production occurs.
- Keratin is a protein that is the main
component of skin.
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- As noted above, fibrous proteins such as keratins, collagens and elastins are robust, relatively insoluble, quaternary structured proteins that play important roles in the physical structure of organisms.
- Secondary structures such as the α-helix and β-sheet take on a dominant role in the architecture and aggregation of keratins.
- The more flexible and elastic keratins of hair have fewer interchain disulfide bridges than the keratins in mammalian fingernails, hooves and claws.
- Keratins have a high proportion of the smallest amino acid, Gly, as well as the next smallest, Ala.
- Fibrous keratin chains then twist around each other to form helical filaments.
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- One of the key adaptations that permitted reptiles to live on land was the development of their scaly skin which contains the protein keratin and waxy lipids, reducing water loss from the skin.