MESOKARYOTE GYRODINIUM-COHNII LACKS NUCLEOSOMES
MESOKARYOTE GYRODINIUM-COHNII LACKS NUCLEOSOMES
复制标题
DOI：
10.1016/0006-291x(79)91126-4
复制
发表时间：
1979-01-01
影响因子：
3.1
通讯作者：
HOLMES, DS
中科院分区：
文献类型：
--
作者：
BODANSKY, S;MINTZ, LB;HOLMES, DS
甲藻G. Cohnii具有明显的核膜，但显然缺乏与其染色质相关的组蛋白。的核DNA。apprx。13%被微球菌核酸酶快速消化成酸溶性片段，而不是典型的真核生物中的核小体大小的片段。电镜下观察到G. cohnii表现为40-60埃的细丝。没有规则间隔的核小体。甲藻具有原核生物和真核生物的特征。
The dinoflagellate G. cohnii has a distinct nuclear membrane but apparently lacks histones associated with its chromatin. Of the nuclear DNA .apprx. 13% is rapidly digested by micrococcal nuclease to acid soluble fragments and not to nucleosomal sized fragments as in the typical eukaryote. Under EM the chromatin of G. cohnii appears as a thin filament of 40-60 .ANG. in width without regularly spaced nucleosomes. The dinoflagellates apparently exhibit characteristics of both prokaryotes and eukaryotes.