BIOL 2170 Chapter Four Notes
BIOL 2170 Chapter Four Notes BIOL 2170
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This 2 page Class Notes was uploaded by chelsea1023 on Monday September 7, 2015. The Class Notes belongs to BIOL 2170 at University of Toledo taught by Dr. Deborah Chadee in Summer 2015. Since its upload, it has received 127 views. For similar materials see Fundamentals of Life Science: Biomolecules, cells, and Inheritence in Biology at University of Toledo.
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Date Created: 09/07/15
Biology 2170 Dr Deborah Chadee Chapter Four Translation and Protein Structure Amino acids consist of 0 An amino group 0 An alpha carbon 0 A carboxyl group 0 A side chain 0 A hydrogen 0 The structure is tetrahedral around the alpha carbon 0 Some amino acids are hydrophobic and some are hydrophilic and some are 39special39 Hydrophobic o Alanine o Valine o Leucine o Isoleucine o Methionine o Phenylalanine o Tryptophan o Tyrosine Hydrophilic o Lysine o Arginine o Histidine o Aspartic acid 0 Glutamic acid 0 Asparagine o Glutamine o Serine o Threonine Special 0 Glycine o Proline o Cysteine Peptide Bonds 0 Contain an Nterminus and a Cterminus Have to undergo a dehydration reaction to form Can have primary secondary tertiary and quaternary structures Alpha helix and beta sheet secondary structure Tertiary structures have function Denaturation loss of structure which results in loss of function Quaternary proteins that consist of more than one polypeptide Central Dogma DNAgtTranscriptiongtRNAgtTranslationgtProtein Components needed for translation 0 00000 O Ribosomes tRNA Aminoacyl tRNA synthetases Initiation factors Elongation factors Release factors mRNA Aminoacyl tRNA synthetase binds to one uncharged tRNA and one corresponding amino acid 0 Base pairing in DNA 0 O O Adenine always pairs with thymine Cytosine always pairs with guanine There is a full genetic code used to determine which codon matches with which amino acid 0 Process of translation 0 00000 lnitiationgt elongationgt termination Initiation factors bind to the 539 cap They also bring up tRNA They scan for the start AUG codon Elongation codons are added to the existing strand of tRNA Termination bond connecting polypeptide to tRNA breaks