Eukaryotic Chromosomes are composed of DNA, Histone and Nonhistone Proteins Histones: H1 H2A. H2 B, H3, H4. The later 4 form nucleosomes(100 A)and thus called core histones. H1 plays a role in forming 300 A superhelix Histones are rich in basic amino acids Nonhistone proteins play a variety of functions
A 群脑膜炎球菌多糖疫苗 拼音名: A Qun Naomoyanqiujun Duotang Yimiao 英文名:Group A MeningococcaI Polysaccharide Vaccine 书页号:2005 年版三部-34 本品系用 A 群脑膜炎奈瑟菌培养液,经提取获得的荚膜多糖抗原,纯化后加入适宜稳定剂后冻干制成。用于预防 A 群脑膜炎球菌引起的流行性脑脊髓膜炎