the predominant 11s component appears to be identical to chromatin `` '' subunits '' '' or `` '' nucleosomes '' '' isolated from higher eukaryotes , containing a 150-160 base pair length of dna and approximately equimolar amounts of four proteins that coelectrophorese with calf histones h2a , h2b , h3 , and h4 , plus small amounts of three proteins that electrophorese similarly to h1 histones .
C0008546
chromatin
C0028623
`` '' nucleoso