BIOL240 Lecture Notes - Lecture 15: Cell Membrane, Conformational Change, Gram Staining
15 Mar 2019
School
Department
Course
Professor
Document Summary
2000000 bases: megavirus chilensis (dsdna viruses of amoebas) has a genome >1. 2megabase pairs (makes. 1200 proteins: mimivirus (mimics bacteria when treated with gram stain +ve) can be 400nm in diameter (makes 979 proteins) (dsdna virus of amoebas, pandoravirus (dsdna virus of amoeba) 1 micron in diameter huge! Structure: single or double stranded, dna or rna, linear or circular genomes, dsdna dsrna ssdna ssrna, protein shell capsid made of capsomere capsid and genome together is the nucleocapsid, possible envelope cytoplasmic membrane while budding. If no envelope virus is naked: viruses can be site specific; affect a particular site of the body of the host. Capsid: often exhibit either helical or icosahedral, helical looks like a cylinder. Seen in rna because need complete protection as rna can degrade (oh) and cloaking. Icosahedral is 20 triangles coming together (60 different capsomere subunits to build up the structure).
