TAMU BIOL 213 - Protein Structure (8 pages)

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Protein Structure



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Protein Structure

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Lecture number:
5
Pages:
8
Type:
Lecture Note
School:
Texas A&M University
Course:
Biol 213 - Molecular Cell Biol
Edition:
1

Unformatted text preview:

BIOL 213 1st Edition Lecture 5 Outline of Last Lecture II Molarity A Definition B Tips on how to do the molarity problems III Acids Bases and pH a Definitions of acid and base b Ionization of water Kw c Tips on how to do problems involving pH d Buffers IV Review of the most common chemical groups in biological molecules a A list their formulas a unique characteristic and where they re commonly found V Macromolecules a Monomers of all b Condensation reaction VI Polysaccharides a Description i Major functions b Structure i How the flipping of an O and OH can change the sugar c Glucose i Alpha and beta VII Lipids a Description i Ester linkage b Basic structure i Hydrophobic and hydrophilic parts ii Saturated vs Unsaturated c Properties d Two main different kinds covered in lecture i Triacylglycerol ii Phospholipid 1 Phosphatidylserine VIII Cholesterol a Basic structure b Main functions These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute i Hormones IX Proteins a Description i Major functions b Amino Acids i Structure ii Classification nonpolar charged or uncharged polar iii We need to be able to Outline of Current Lecture I A protein s function is linked to its structure II Overview of the levels of protein structure III Primary structure a Amino acid sequence IV Secondary structure a helices b sheets i antiparallel ii parallel V Tertiary structure a Interaction of helices and sheets VI Quaternary structure a Multiple polypeptide subunits i Identical ii Different VII Protein folding a Defects lead to diseases VIII Enzymes a Lower activation energy Current Lecture I II III A proteins function is linked to its structure a Why we need to know this i So that we can understand how enzymes work 1 Enzymes are very structure specific because they have to bind to the right substrate in order to catalyze the right reaction ii To understand how drugs affect proteins 1 How they can



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