PPT-Proteins

Protein The main function of protein is to build and repair tissues muscle tissue Protein Protein can be a source of energy but should be used as a last resort. B. Suarez, R. Martinez, O. Diaz, H. Jones, T. Ashraf, E. Priddis, K. Durham, Undergraduate Biology Research, Cochise Community College, Sierra Vista, AZ . INTRODUCTION.  . Genomic and proteomic studies can reveal multi-dimensional aspects of biological model organisms. DNA sequencing and short tandem repeats are utilized to characterize organism’s phylogenetic relationships; another approach is to study their various proteins. Many genomic studies utilize extraction and amplification of nucleic acids to help make detection more straightforward. There is no proteomic procedure similar to PCR that would identify proteins at their naturally existing concentration, as well as the presence of many other proteins for comparative studies. Most methods for studying proteins revolve around running 1D, 2D, or 3D gels, and comparing and identifying similar proteins. . Introduction:. Plasma proteins are:. Serum albumin.. Serum globulin.. Fibrinogen.. Serum contains albumin and globulin.. Fibrinogen is absent . Converted into fibrin during blood clotting.. Therefore albumin and globulin are called serum albumin and serum globulin.. The 20 different amino acids. 7.5.1: Explain the four levels of protein structure, indicating the significance of each level.. Peptide bonds link the amino acids together . Polypeptide with five amino acids. . Effect of pH and . Ionic Strength . on Solubility of Proteins. INTRODUCTION. Food Industry:. - Functional Properties - Nutritional. Gelation. Foaming. Change in viscosity. Examples. : . Whole eggs, egg yolk, egg albumen, whey solids, non-fat dry milk . 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.. Levels of Protein Structure. Primary 1º Structure. The primary structure is simply the sequence of amino acids in a protein.. Chains of amino acids are written from the amino terminus (N-terminus) to the carboxyl terminus (C-terminus).. 2. Proteins (. Polypeptides. ). Chains of Amino acids (. 20. different kinds). bonded together by . peptide bonds. . (. polypeptides. ). Made of . Nitrogen, Carbon, Oxygen, and Hydrogen. Functions:. Amino . Acids. In a transamination reaction, . aspartate transaminase (AST) . catalyzes the reversible transfer of an amino group between glutamate and aspartate.. an . α. -amino group is transferred from an amino acid to an . 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%). 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.. Each amino acid (aa) shares a common structure; i.e. an amine (NH. 2. ) group, an acid group (COOH), and a central carbon atom bonded to hydrogen and to a side chain (R).. The side chains qualify aas as acidic, basic, neutral, aromatic, and sulphur-containing amino acids.. 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.