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Collagen is the main structural protein found in the body's various connective tissues (skin, bones, tendons, etc.) where it contributes to much of their strength and elasticity. Collagen loss occurs naturally as a part of aging, but can also be influenced by environmental factors such as exposure to ultraviolet light, tobacco , and excessive ...
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
Collagen IV has been the focus of extensive research ranging from biochemistry perspectives, to pathology, and genetic disorders. This is the only collagen type that is encoded by six different genes. The six α-chains of collagen IV can recognize each other with incredible specificity and will assemble into unique heterotrimers. After ...
Fibrous proteins are structural or storage proteins that are typically inert and water-insoluble. A fibrous protein occurs as an aggregate due to hydrophobic side chains that protrude from the molecule. A fibrous protein's peptide sequence often has limited residues with repeats; these can form unusual secondary structures, such as a collagen ...
Collagen is a vital protein in skin, hair, nails, and other tissues. Its production decreases with age and factors like sun damage and smoking. Collagen supplements, derived from sources like fish and cattle, are marketed to improve skin, hair, and nails. Studies show some skin benefits, but these supplements often contain other beneficial ...
See protein electrophoresis for more information on the different globulins. Nearly all enzymes with major metabolic functions are globular in shape, as well as many signal transduction proteins. Albumins are also globular proteins, although, unlike all of the other globular proteins, they are completely soluble in water. They are not soluble ...
Type IV collagen, the major structural component of basement membranes, is a multimeric protein composed of 3 alpha subunits; this gene encodes the alpha 3 subunit. These subunits are encoded by 6 different genes, alpha 1 through alpha 6, each of which can form a triple helix structure with 2 other subunits to form type IV collagen.
Protein solubility is a complex function of physicochemical nature of the protein, pH, temperature, and the concentration of the salt used. It also depends on whether the salt is kosmotropic, whereby the salt will stabilize water. The solubility of proteins usually increases slightly in the presence of salt, referred to as "salting in".