(isim) protein

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protein
Molecules composed of amino acids Proteins constitute the enzymes and many of the structural components of cells
A polymer of amino acids linked via peptide bonds and which may be composed of two or more chains The uniqueness of individual proteins depends on the length and order of amino acids within the proteins
Any of a group of complex organic macromolecules that contains carbon, hydrogen, oxygen, nitrogen, and usually sulfur, and composed of one or more chains of amino acids, and include many substances, such as enzymes, hormones, and antibodies, that are necessary for the proper functioning of an organism
In chemical analysis, the total nitrogenous material in vegetable or animal substances, obtained by multiplying the total nitrogen found by a factor, usually 6
Any of the group of large molecules that are composed of a linear sequence of amino acids Proteins account for more than 50 percent of the dry weight of most cells, and are involved in most cell processes Examples of proteins include enzymes, collagen in tendons and ligaments and some hormones For more information see An introduction to proteins (BioTech, University of Texas, USA) and Molecular biology notebook – protein structure and diversity (Institute of Arable Crops Research, UK)
A macromolecule formed from a sequence of amino acids synthesized according to the genetic information coded by RNA (translation) Proteins are the fundamental functional and structural constituents of cells
A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nuceotides in the gene coding for the protein Proteins are required for the structure, function, and regulation of the body cells, tissues, organs, and each protein has unique functions
A large biomolecule composed of one or more chains of amino acids in a specific order Proteins are required for the structure, function, and regulation of cells, tissues, and organs
Protein is a substance found in food and drink such as meat, eggs, and milk. You need protein in order to grow and be healthy. Fish was a major source of protein for the working man. a high protein diet. one of several natural substances that exist in food such as meat, eggs, and beans, and which your body needs in order to grow and remain strong and healthy (protéine, from protos ). Any of numerous organic compounds, complex polymers of amino acids that are involved in nearly every aspect of the physiology and biochemistry of living organisms. Twenty different amino acids are common to proteins, linked in chains of hundreds to thousands of units. An active protein molecule has three important levels of structure: primary (the amino acid sequence), determined by the genes; secondary (the geometric shape, often a helix), determined by the angles of the covalent bonds between and within amino acids; and tertiary (the looped and folded overall shape), determined largely by attraction between oppositely charged groups (and repulsion between like charged groups) on amino-acid side chains and especially by hydrogen bonding. The tertiary structure, which can be globular or sheetlike with ridges, crevices, or pockets, often holds the key to a protein's biological activity. Proteins can serve, e.g., as structural material (as in connective tissue and hair; see collagen; keratin), as enzymes and hormones, as transporters of essential substances such as oxygen (see hemoglobin), as antibodies, or as regulators of gene expression. Some proteins are simple (amino acids only), some conjugated (see conjugation) to other groups, often vitamins or metal atoms needed in tiny amounts in the diet (see coenzyme; cofactor). Rhodopsin and hemoglobin are conjugated proteins. Proteins may be covalently linked to other atoms or molecules, as to sugars (glycoproteins), phosphate groups (phosphoproteins), or sulfur (sulfoproteins). Proteins are an essential human nutrient, obtained from both plant and animal foods. Their greatest commercial use is in food products; they are also employed in adhesives, plastics, and fibres
One of the three main classes of food Proteins are made of amino acids, which are called the building blocks of the cells The cells need proteins to grow and to mend themselves Protein is found in many foods such as meat, fish, poultry, and eggs See also: Carbohydrate; fats
A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotides in the gene that codes for the protein Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs; and each protein has unique functions Examples are hormones, enzymes, and antibodies
A complex biological molecule composed of a chain of units called amino acids Proteins have many different functions: structure(collagen); movement (actin and myosin); catalysis (enzymes); transport (hemoglobin); regulation of cellular processes (insulin); and response to the stimuli (receptor proteins on surface of all cells) The information for making proteins is stored in the sequence of nucleotides in the DNA molecule
An important kind of molecule in the human body, consisting of a sequence of amino acids The shape of a protein depends on the number and sequence of amino acids that make it
Macromolecules consisting of long sequences of amino acids Protein is three-fourths of the dry weight of most cell matter and is involved in structures, hormones, enzymes, muscle contraction, immunologic response, and essential life functions
What it's good for: Keeps the body running, made from different combinations of amino acids Where you get it: Meat, eggs, dairy products, beans, whole grains, and vegetables RDA: Between 46 and 63 g for adults
A large molecule composed of one or more chains of amino acids in a specific order; the order is determined by the base sequence of nucleotide in the gene coding for the protein Proteins are required for the structure, function, and regulation of the body's cells, tissues, and organs, and each protein has unique functions Examples are hormones, enzymes and antibodies
a large, complex molecule composed of amino acids The sequence of the amino acidsÑand thus the function of the proteinÑis determined by the sequence of the base pairs in the gene that encodes it Proteins are essential to the structure, function, and regulation of the body Examples are hormones, enzymes, and antibodies
A molecule composed of many amino acids There are many types of protein with a range of functions Proteins are important as enzymes Egg white is almost pure protein
A large, complex molecule composed of amino acids The sequence of the amino acids, and thus the function of the protein, is determined by the sequence of the base pairs in the gene that encodes it Proteins are essential to the structure, function, and regulation of the body Examples are hormones, enzymes, and antibodies
A large complex molecule made up of one or more chains of amino acids Proteins perform a wide variety of activities in the cell