BIO 1140 Lecture Notes - Lecture 7: Photobleaching, Phagocytosis, Non-Covalent Interactions

• School: University of Ottawa
• Department: Biology
• Course: BIO 1140
• Professor: Caroline Petit- Turcotte

Document Summary

Need a stru(cid:272)ture that"s hydropho(cid:271)i(cid:272) fa(cid:272)i(cid:374)g fatty portio(cid:374) a(cid:374)d a (cid:272)ore that has hydrophili(cid:272) (or polar) that will create a passage to pass the membrane more easily. Peripheral proteins are no covalently bound bond to strong for them to be flexible to change and bind with other membranes. Integral protein ion channels, transporters, receptor, outside of membrane covalent. Span the membrane once or more (single, double, multipass), orientated can face inside or outside of cell (n and c terminus can face) Peripheral proteins interacts with membrane in or out, link with cytoskeleton, non-covalent bond. Lipid-anchored protein has lipid moieties allows it to be anchored, becomes part of the membrane ( lipid part) can be anchored by a specialized carbon hydrate. Extracellular: proteins will be useful for cell adhesion, they are gtp anchors. Intracellular: proteins that involve in cell growing, and divide, fatty acid anchors. Freeze-fracture: freeze the membrane then use a knife to split the bi-layer.