Biology 1002B Chapter Notes - Chapter Proteins: Dehydration Reaction, Protein Folding, Random Coil
25 Jan 2017
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Document Summary
Diverse group of macromolecules, vary on chemical composition & function. More possible arrangements, 20 building blocks whereas nucleic acids only have 4. In 3d shape, proper shape = proper function: we have chaperone protein are proteins which help new proteins fold correctly, absence of chaperones = chances for diseases to occur. Major functions include: support (ex: microtubule, collagen etc. , catalyze reactions (dna polymerase, digestive enzymes, lipases etc. , protein channels (ion transporters of na+, k+ etc. , movement (mobile proteins, agella, cilia, kinesin etc. ) General structure of an amino acid: central carbon, amino group (nh2, carboxyl (-cooh) group. Friday, january 20, 2017: hydrogen atom, r-group (variable side chain) = 1 out of 20 different side groups, could be very simple, or very complex. Side group attached give amino acid individual its unique properties. 20 common amino acids, depending on the side chain attached. Proteins are synthesized from 20 different amino acids.
