19.2 The nucleosome is the subunit of all chromatin Figure 19.1 Chromatin spilling out of lysed nuclei consists of a compactly organized series of particles. The bar is 100 nm. Photograph kindly provided by Pierre Chambon. 情菜大学
Figure 19.1 Chromatin spilling out of lysed nuclei consists of a compactly organized series of particles. The bar is 100 nm. Photograph kindly provided by Pierre Chambon. 19.2 The nucleosome is the subunit of all chromatin
19.2 The nucleosome is the subunit of all chromatin Figure 19.2 Individual nucleosomes are released by digestion of chromatin with micrococcal nuclease.The bar is 100 nm.Photograph kindly provided by Pierre Chambon. 清苇大当
Figure 19.2 Individual nucleosomes are released by digestion of chromatin with micrococcal nuclease. The bar is 100 nm. Photograph kindly provided by Pierre Chambon. 19.2 The nucleosome is the subunit of all chromatin
19.2 The nucleosome is the subunit of all chromatin ●OH2A×2=28k0 ●0H2B×2=28k0 Figure 19.3 The N OOH3×2=30k0 nucleosome consists of O●H4×2=22k0 200 bp DNA=130 KD Total protein 108 kD approximately equal Length 67 nm masses of DNA and histones (including H1) The predicted mass of the H1=24 KD nucleosome is 262 kD. 6 nm 11nm 情華大当
Figure 19.3 The nucleosome consists of approximately equal masses of DNA and histones (including H1). The predicted mass of the nucleosome is 262 kD. 19.2 The nucleosome is the subunit of all chromatin
19.2 The nucleosome is the subunit of all chromatin Figure 19.4 The DNA "leaves nucleosome may be a cylinder with DNA organized into two turns DNA "enters" around the surface. 清菜大兰
Figure 19.4 The nucleosome may be a cylinder with DNA organized into two turns around the surface. 19.2 The nucleosome is the subunit of all chromatin
19.2 The Axis of symmetry nucleosome Protein 3.2 nm is the subunit Radius of gyration of all DNA=5.2 nm chromatin Figure 19.5 The two turns of DNA on the nucleosome 2 turns of DNA,each 2 nm diameter lie close together. occupy most of height (6 nm) 情莘大学
Figure 19.5 The two turns of DNA on the nucleosome lie close together. 19.2 The nucleosome is the subunit of all chromatin