BIOL107 Lecture 5: BIOL 107-Lecture #5-Chemical Bonds and Macromolecules Pt.III

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL107
• Professor: Torah Kachur

Document Summary

Biol 107 lecture #5 chemical bonds and macromolecules pt. Proteins function in 3d but are synthesized as linear polypeptides. Amino acid polymers are formed during translation. Amino acids are covalently linked by peptide bonds. Forms between carboxy end of previous amino acid with the amino end of the next amino acid. Amino acids have a directionality (n c) that is maintained in polymer. Folding dictates function: primary structure: polymerization of amino acids (1o) Determined by the sequence of dna (in genes) Sequence of amino acids arranged in a chain. Both shapes can be found in a single protein. ***stabilized by interactions between amino acids backbone (h bonds) R groups not involved: tertiary structure: 3d shape of protein. Ie. non-polar amino acids drive into middle of protein. Interaction between the backbones of the peptide chain (r groups do not stabilize the folding, only drive it.