MGY299Y1 Lecture Notes - Lecture 3: Lipid Bilayer, Inclusion Bodies, Herpes Simplex Virus
11 May 2016
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Dna within protein coat (capsid- entire protein coat) basically genetic information. **obligate intracellular parasites classified based in the cell they infect: eukaryotic vs. prokaryotes (single celled- bacteria and archaea) phages virus that infect only bacteria (ch. They"re also too small to be seen in a light microscope, you need an electron microscope to see virus. They"re like 10-1000 times smaller than they cells they infect. Virion is nucleic acid + protein coat (capsid) Enveloped has spikes for attachment and entry into host. 20 flat triangles arranged in a manner similar to a soccer ball efficient design for structure with identical subunits and using least energy to assemble. Phage a common example with an icosaheldral nucleocapsid (head) and long helical component (tail) Each segment usually encodes 1 protein, but since virus is so diverse this is not always the case. Small rna derives from replicated less accuracy, and are prone to more mistakes than dna.
