CHROMATIN STRUCTURE OF DROSOPHILA-MELANOGASTER RIBOSOMAL GENES

被引：15
作者：
BELIKOV, SV
DZHERBASHYAJAN, AR
PREOBRAZHENSKAYA, OV
KARPOV, VL
MIRZABEKOV, AD
机构：
[1] W.A. Engelhardt Institute of Molecular Biology, USSR Academy of Sciences, Moscow
来源：
FEBS LETTERS | 1990年 / 273卷 / 1-2期
关键词：
Chromatin structure; D; melanogaster; DNA-protein crosslinking; Ribosomal gene;
D O I：
10.1016/0014-5793(90)81085-3
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The chromatin structure of ribosomal genes of D. melanogaster has been studied by crosslinking proteins to DNA. We found that a number of histone contacts with DNA through histidine in the approximately 1 kb-long region surrounding the transcription initiation site, coding regions and the region of 240 bp-long repeats from the intergenic spacers (Alu-repeats) were weakened as compared to the inactive chromatin of the type II insertion. A protein with the molecular mass of 50 kDa (p50), associated with all DNA sequences analysed, has been discovered. Another protein with molecular mass of about 70 kDa (p70) has been found to be specific only for the Alu-repeats. © 1990.
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页码：205 / 207
页数：3
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