BIOL 200 Study Guide - Final Guide: Lysine, Tums, Ubiquitin
22 Jun 2016
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Korea) handheld electronic barcoder a lot of opportunity to identify new species quickly makes value of museum collections higher makes learning about species easy and informative. Extended for of chromatin is beads on a string bead = nucleosome composed of histones and dna. separated by linker dna (10-90bp) Nucleosome protein core with dna would around the surface (almost 2 full turns) protein core consists of 2 copies of h2a, h2b, h3, h4. 30nm chromatin fiber condensed form of chromatin includes the fth histone, h1 stabilizes the 30nm chromatin ner. H2a and h2b > n terminal + c terminal. H3 + h4 > only n terminal rich in lysine acetylation, methylation, phosphorylation, ubiquitination. Acetylation: neutralizes the positive charge, structure is looser. Dnase on globin gene) condensed > dnase cannot hit the target (globin gene) Protein sca old non histone proteins provide a structural sca old for long chromatin loops loops are rich in genes and 1-4mb in length.
