- Large molecules composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides in the DNA coding for the protein. Proteins are 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. Examples of proteins include whole classes of important molecules, among them enzymes, hormones, and antibodies. Proteins are one of the three types of nutrients used as energy sources by the body, the other two being carbohydrate and fat. Proteins and carbohydrates each provide 4 calories of energy per gram, while fats produce 9 calories per gram.
Medical dictionary. 2011.
Look at other dictionaries:
Proteins, G — These molecules have been described as “biological traffic lights.” Located inside the cell, G proteins are able respond to signals outside the cell light, smell, hormones and translate (transduce) these signals into action within the cell.… … Medical dictionary
proteins — baltymai statusas T sritis ekologija ir aplinkotyra apibrėžtis Stambiamolekuliai organiniai junginiai, sudaryti iš α aminorūgščių liekanų, sujungtų peptidiniu (kovalentiniu) ryšiu. Yra visų gyvųjų organizmų ląstelių pagrindinė sudedamoji dalis –… … Ekologijos terminų aiškinamasis žodynas
proteins — n. pl. [Gr. proteion, primary] Complex organic compounds of carbon, nitrogen, hydrogen, oxygen and often other elements, yielding amino acids by hydrolysis; essential in cells of all plants and animals … Dictionary of invertebrate zoology
proteins — proÂ·teÂ·in || prÉ™ÊŠtÉªËn n. essential organic compound composed of 20 or more amino acids joined by peptide bonds … English contemporary dictionary
proteins — pointers … Anagrams dictionary
PROTEINS — … Useful english dictionary
Proteins@home — ( Proteins at home ) is one of distributed computing projects that uses the BOINC architecture. The project is run by Department of Biology at École Polytechnique. The project opened on December 28, 2006 Purpose Proteins@Home is a large scale non … Wikipedia
Proteins, acute-phase — Proteins whose plasma concentrations increase (or decrease) by 25% or more during certain inflammatory disorders. C reactive protein (CRP) is perhaps the best known of acute phase proteins. CRP is a plasma protein that rises in the blood with the … Medical dictionary
Proteins@home — est un projet de calcul distribué. Son but est de déterminer toutes les séquences en acides aminés des protéines afin de permettre de fabriquer de nouveaux médicaments, notamment contre la maladie d Alzheimer voire le cancer. Il est dirigé par l… … Wikipédia en Français
seed storage proteins — Proteins accumulated in large amounts in protein bodies within seeds. They act as a source of amino acids during germination. Of interest in biotechnology: 1. As a major source of human and animal nutritional protein. 2. As a model expression… … Glossary of Biotechnology