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2. Keratin - Wikipedia

   en.wikipedia.org/wiki/Keratin

   Alpha-keratin (α-keratin) is a type of keratin found in vertebrates. It is the key structural material making up scales, hair, nails, feathers, horns, claws, hooves, and the outer layer of skin among vertebrates. Keratin also protects epithelial cells from damage or stress. Keratin is extremely insoluble in water and organic solvents.

3. List of keratins - Wikipedia

   en.wikipedia.org/wiki/List_of_keratins

   Human keratin pseudogenes. Protein name [3] Gene name [3] Other protein name: Other gene name: KRT121P: φhHbD, Kb31P KRT122P: φhHbC, Kb30P KRT123P: φhHbB, Kb29P ...

4. Isoionic point - Wikipedia

   en.wikipedia.org/wiki/Isoionic_point

   The isoionic point is the pH value at which a zwitterion molecule has an equal number of positive and negative charges and no adherent ionic species. It was first defined by S.P.L. Sørensen, Kaj Ulrik Linderstrøm-Lang and Ellen Lund in 1926 [1] and is mainly a term used in protein sciences.

5. Alpha-keratin - Wikipedia

   en.wikipedia.org/wiki/Alpha-keratin

   Alpha-keratin, or α-keratin, is a type of keratin found in mammalian vertebrates. This protein is the primary component in hairs , horns , claws , nails and the epidermis layer of the skin . α-keratin is a fibrous structural protein , meaning it is made up of amino acids that form a repeating secondary structure.

6. Type I keratin - Wikipedia

   en.wikipedia.org/wiki/Type_I_keratin

   Type I keratins (or Type I cytokeratins) are cytokeratins that constitute the Type I intermediate filaments (IFs) of the intracytoplasmatic cytoskeleton, which is present in all mammalian epithelial cells.

7. Outline of biochemistry - Wikipedia

   en.wikipedia.org/wiki/Outline_of_biochemistry

   molecular bond – covalent bond – ionic bond – hydrogen bond – ester – ethyl; molecular charge – hydrophilic – hydrophobic – polar; pH – acid – alkaline – base; oxidation – reduction – hydrolysis; Structural compounds: In cells: flagellin – peptidoglycan – myelin – actin – myosin; In animals: chitin – keratin ...