PPT-Proteins – p. 25

httpswwwyoutubecomwatchvhpaki7F4HR0 http wwwwisconlinecomobjectsindextjaspobjIDAP13304 Cells contain thousands of different proteins each performing a specific task Examples Enzymes . 2. Proteins. Proteins are polymers made of monomers called amino acids. All proteins are made of 20 different amino acids linked in different orders. Proteins are used to build cells, act as hormones & enzymes, and do much of the work in a cell. . from lack of structure to. pleiotropy. of functions. Lilia Iakoucheva. University of California, San Diego. Ordered Proteins. Disordered Proteins. Uversky and Dunker, 2012, Anal . Chem. Outline. Dina N Kovarik, MS, PhD. Digital World Biology. Updated . April 24, 2015. Fluorescent Proteins are Valuable Tools. Locate proteins in the cell. Track the migration of cells. Reporter of expression. Sister centromeres . PROTEINS – (DR. TRAISH) Introduction to Proteins - Proteins are abundant and functionally diverse molecules - They participate in cell regulation at all levels - They share a common structural CHAPTER 3, Part 1 . Amino Acids and Peptides . To know the structure and naming of all 20 protein amino acids. To know the structure and properties of peptides and the particularly the structure of the peptide bond.. 2. Proteins (. Polypeptides. ). Chains of Amino acids (. 20. different kinds). bonded together by . peptide bonds. . (. polypeptides. ). Made of . Nitrogen, Carbon, Oxygen, and Hydrogen. Functions:. B.2. Properties of 2-amino acids . (B.2.2). Zwitterion. (dipolar) . amino acids contain both acidic and basic groups in the same molecule . therefore, are . amphoteric. in nature (capable of behaving as acids or bases). Proteins account for more than 50% of the dry mass of most cells. Protein functions include structural support, storage, transport, cellular communications, movement, and defense against foreign substances. In order to survive, the human body needs the nutrients found in food. These nutrients, which perform a number of life-sustaining functions in the body, are divided into 6 main categories: carbohydrates, proteins, fats, vitamins, minerals and water. Each has a unique function in the normal growth and repair of the body.. 4. calories per gram. . The main function of protein is to . build and repair body tissues. .. If carbohydrates and fat are not available, your body will use protein. Is this a good thing? . You must eat protein . proteins of milk, meat and eggs.. Milk composition. Deficient in iron and vitamin C. Milk proteins. Total protein content in milk – 2.9 – 3.5%. Two major types of milk protein. Caseins (80%). Whey proteins: (20%). Most abundant molecule in cells making up 50% or more of their dry weight. Every protein has a unique structure, or shape. Allows it to perform a specific function. Enzymes are proteins that function as catalysts for many reactions in foods. Chromatin is made of repeating units of nucleosomes, which consist of 146 base pairs of DNA wrapped around an octamer of four core . histone proteins (H3, H4, H2A and H2B). Introduction. Histones are a special group of proteins found in the nuclei of eukaryotic cells responsible for DNA folding and chromatin formation.. Unit 1 Advanced Higher. Miss Aitken. Pages 16-25. Textbook. Proteomics. Genome:. complete set of DNA. Comprises of coding and non-coding areas. 20-25000 genes in human genome. Proteome:. Entire set of proteins that can be expressed from a genome.