BIO 1140 Lecture Notes - Lecture 7: Cytoskeleton, Phagocytosis, Passive Transport
4 Nov 2017
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Polar amino acids need to be found on either side of the membrane, non polar amino acids facing the membrane. A, to have a dynamic interaction, you would not want the stronger, harder to break covalent bonds: slide 4. Periphery proteins: non covalently bond, interact with components of extra cellular matrix, integral proteins etc. Lipid anchored: depending if they are attached to the inner or outer leaf, there will be different anchors. Leaflets don"t span membrane, attached to only one: slide 5. Peptide bonds allow the protein to have an orientation, an n and c end. Orientation can find itself in either direction, inside or outside(so it doesn"t tell us this) Proteins that span the membrane can do it once, many times or create a pore or channel: slide 6. Non covalence allows quick changes to structure. Provides a lot of support and elasticity to membrane. Red blood cells that stretch through small passages, then come back: slide 7+8.
