19.2 The nucleosome is the subunit of all chromatin M OO H2AX 2=28 KE 0oH2Bx2=28 Figure 19. 3 The H3×2=30k nucleosome consists of ●H4x2=22k 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 11 nm 消当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