HTHSCI 1LL3 Lecture Notes - Lecture 6: Transmembrane Protein, Alpha Helix, Hydrogen Bond

• School: McMaster University
• Department: Health Sciences
• Course: HTHSCI 1LL3
• Professor: Teresa Mccurdy

Document Summary

Protein structure: in their shape mostly by non-covalent bonds: there are several different general types of structure for proteins. Levels of structures: secondary: elements of shape that are common to all proteins within the. Dna structure: tertiary: 3d structure made up of a bunch of the secondary structures, quaternary: only a few proteins make it to this level, the three-dimensional structure must be flexible enough to function. Protein structure rules: properly but stable enough that it will not convert to another conformation: it must have amino acids with side groups that are compatible with the environment or environments that the protein will function in. So polar groups on the outer surface if it will function in aqueous environments, hydrophobic groups in membrane insertion areas if it is transmembrane protein. R-groups stick off an are different depending on the protein. They"re what"s in contact with the environment.