Canlı hücrelerin ana maddesini oluşturan, genellikle sülfür, oksijen ve karbon ögeleri bulunan amino asit birleşiminden oluşmuş karmaşık yapılı doğal madde: "Hayvani protein alamayan yerlerde, bu yol ile fakir fukaraya et yedirebilmek imkânı hazırlanmıştır."- B. Felek
Yeterli protein alınmaması veya düşük kaliteli proteinlerin alınması sonucu ortaya çıkan, büyümeyi engelleyen, hastalıkların ağır seyretmesine yol açan, kan hücrelerinin yapımını geciktiren ve kansızlığa sebep olan dengesiz beslenme
A repressor found in λ phage (a bacteriophage that particularly infects the human digestive bacteria, E. coli) which turns off genetic transcription at the phage's L and R promoters, and thus prevents multiple phages from infecting a single host
Any protein that consists of both a polypeptide and a prosthetic group such as a lipid (in lipoproteins), sugar (in glycoproteins) or porphyrins and metals (in hemoglobin etc)
A protein formed by genetically fusing or combining a gene encoding a target protein of interest with a gene encoding a protein or portion of protein that adds a desired functionality to target
Any of a class of protein produced by bioluminescent jellyfish of the genus Aequorea, that is used in biological research to trace the biosynthesis and movement of proteins in living organisms
A protein (or group of proteins) permanently attached to a biological membrane by interactions between its hydrophobic dimer units and the phospholipids of the membrane
any protein in which iron is coordinated with cysteine sulfur and sometimes also with inorganic sulfur; they have electron transfer and enzymatic function
One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (ie: meat) and some vegetables, such as legumes. see carbohydrate and fat for the other two major classes
Proteins that bring together various other proteins in a signaling pathway and allow for their interaction. They recruit downstream effectors in a pathway and enhance specificity of the signal
An protein intron is a segment of a protein that is able to excise itself and rejoin the remaining portions (the exteins) with a peptide bond. Protein introns have also been called "inteins"
(Tıp, İlaç) Small Ubiquitin-related Modifier or SUMO proteins are a family of small proteins that are covalently attached to and detached from other proteins in cells to modify their function. SUMOylation is a post-translational modification involved in various cellular processes, such as nuclear-cytosolic transport, transcriptional regulation, apoptosis, protein stability, response to stress, and progression through the cell cycle
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 molecule made up of a number of amino acids arranged in a specific order determined by the genetic code Proteins are essential for all life processes 2 Return to top
Proteins are large molecules required for the structure, function, and regulation of the body's cells, tissues, and organs Each protein has unique functions Proteins are essential components of muscles, skin, bones and the body as a whole Protein is also one of the three types of nutrients used as energy sources by the body
Proteins are essential molecules in the body made up of many amino acids strung together DNA encodes the proteins and the cells can then turn the DNA into RNA and ultimately into proteins Clotting factors are one of many types of proteins
any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"
A compound formed from a chain of amino acids Proteins are present in all living things, and are used for enzymes, hormones and other essential molecules
the process whereby a protein molecule assumes its intricate three-dimensional shape; "understanding protein folding is the next step in deciphering the genetic code
(Tıp) Üç ana besin sınıfından biri.Et,yumurta ve baklagillerde(Fasulye,bakla,nohut vs.) bulunur. Mide ve ince barsaklar proteinleri Aminoasitlere dönüştürür.Kan bu aminoasitleri absorbe ederek(emerek) hücre yapımı ve hücrelerin yenilenmesinde(tamiri) kullanır. bkz: Amino Acids