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Proteomics

Exploring Protein Structure

Subject: 
Biology
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Biology
Molecular biology
Proteins
Proteomics
Membrane biology
organelles
Globular protein
Amino acid
cell
Peptide
Insulin
immune system
health

EXPLORING PROTEIN STRUCTURE Discuss the properties of the following fibrous proteins in relation to their structure and function: Collagen Fibroin Keratin Some globular proteins, such as actin, can link together to form filaments. Discuss the importance of this property for cells. Discuss how the microtubules of the cell cytoskeleton form. Relate this structure to the function of the cell cytoskeleton. Enzymes are globular proteins that catalyse reactions in a highly specific manner. Discuss how catalase increases the rate of reaction for removing hydrogen peroxide from cells so it does not reach toxic levels.

proteins

Subject: 
Biology
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Chemistry
Biology
Protein structure
nutrition
Proteomics
Molecular biology
Nitrogen metabolism
Amino acid
Protein
Denaturation
Alpha helix
Peptide
health

1 LECTURE 6: PROTEINS Protein Outline 2 Proteins (structure and function) ?Major roles in physiology & structural frameworks ?Amino acid structure ?Levels of structural organization: (primary, secondary, tertiary, quaternary) ?Properties (relate to structure) ? Major classes of proteins Objectives 3 1. Describe the structure of amino acids 2. Outline how proteins are formed by peptide bonds. 3. Describe how proteins are organized at the primary, secondary, tertiary, quaternary levels. 4. State the functions of proteins 5. Classify proteins according to structure/solubility, composition, function. Proteins 4 ?More than 50% of the dry mass of an organism consists of proteins.

AP Biology Macromolecules

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Biology
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Chemistry
Proteins
Molecular biology
Proteomics
Protein structure
Organic compounds
biochemistry
Protein
Amino acid
metabolism
Nucleic acid
health

Macromolecules Macromolecules The topic of macromolecules lends itself well to illustrate three integral themes woven throughout the text and course: There is a natural hierarchy of structural level in biological organization As one moves up the hierarchy, new properties emerge because of interactions among subunits at the lower levels Form fits function. Most macromolecules are polymers Polymer = (Poly = many; mer = part) Large molecule consisting of many identical or similar subunits connected together. Monomer = Subunit or building block molecule of a polymer. Macromolecule = (Macro large) Large organic polymer. Formation of macromolecules from smaller building block molecules represents another level in the hierarchy of biological organization.
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