MBIO 1010 Lecture Notes - Lecture 6: Lipid Bilayer, Isoprene, Periplasm

• School: University of Manitoba
• Department: Microbiology
• Course: MBIO 1010
• Professor: Christopher Rathgeber

Document Summary

Archaeal membranes: ether linkages in phospholipids of archaea (figure 2. 16, bacteria and eukarya that have ester linkages in phospholipids. In the case of this, they must have a way to withstand the high temp. The tails are held together by vaderval forces. A degree of saturation between the two tails which causes a kink. To offset melting, often times, they will have a different linkage in their membrane and a fat as a whole. Archaeal membranes: archaeal lipids lack fatty acids; have isoprenes instead, major lipids are glycerol diethers and tetraethers (figure 2. 17a, b, can exist as lipid monolayers, bilayers, or mixture (figure 2. 17 d, e) The whole fatty acid isn"t possi(cid:271)le (cid:449)he(cid:374) (cid:449)e ha(cid:448)e a(cid:374) ethe(cid:396) li(cid:374)kage. There is a continuum instead of a separation between the two phospholipid bilayer = more heat is needed to destruct the tetra membrane.