Denaturation is the alteration of a protein shape through some form of external stress (for example, by applying heat, acid or alkali), in such a way that it will no longer be able to carry out its cellular function.
Denatured proteins can exhibit a wide range of characteristics, from loss of solubility to communal aggregation.
Proteins are very long strands of amino acids linked together in specific sequences.
A protein is created by ribosomes that "read" codons in the gene and assemble the requisite amino acid combination from the genetic instruction, in a process known as translation.
The newly created protein strand then undergoes post-translational modification in which additional atoms or molecules are added, for example copper, zinc, iron.
Once this post-translational modification process has been completed, the protein begins to fold (spontaneously, and sometimes with enzymatic assistance), curling up on itself so that hydrophobic elements of the protein are buried deep inside the structure and hydrophilic elements end up on the outside.
The final shape of a protein determines how it interacts with its environment.
Protein folding Protein folding is the process by which a protein structure assumes its functional shape or conformation. All protein molecules are heterogeneous ... >
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Protein structure Proteins, similar to carbohydrates and lipids, are made up of such elements as carbon, hydrogen and oxygen. They are amino acid chains, made up from ... >
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Protein biosynthesis Protein biosynthesis (Synthesis) is the process in which cells build proteins. The term is sometimes used to refer only to protein translation but ... >
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Heat shock protein Heat shock proteins (HSP) are a group of proteins the expression of which is increased when the cells are exposed to elevated ... >
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Protein Proteins are large organic compounds made of amino acids arranged in a linear chain and joined together between the carboxyl atom of one amino acid ... >
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Gluten Gluten is an amorphous ergastic protein found combined with starch in the endosperm of some cereals, notably wheat, rye, and barley. It constitutes ... >
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Antifreeze protein Antifreeze proteins (AFPs) and Antifreeze glycoproteins (AFGPs) are produced as a specialised adaptation by certain fish, insects, plants and ... >
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Keratin Keratins are a family of fibrous structural proteins; tough and insoluble, they form the hard but nonmineralized structures found in reptiles, birds ... >
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RNA Ribonucleic acid or RNA is a nucleic acid polymer consisting of nucleotide monomers that plays several important roles in the processes that ... >
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Peptide bond A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other ... >
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