Suppr超能文献

在有丝分裂的、基因无活性的细胞核中缺乏组蛋白F1。

Absence of histone F1 in a mitotically dividing, genetically inactive nucleus.

作者信息

Gorovsky M A, Keevert J B

出版信息

Proc Natl Acad Sci U S A. 1975 Jul;72(7):2672-6. doi: 10.1073/pnas.72.7.2672.

Abstract

Histones were extracted from macro- and micronuclear chromatin of the ciliated protozoan Tetrahymena pyriformis. Conditions that resulted in macronuclear chromatin containing large amounts of histone F1 yielded micronuclear chromatin in which this histone was absent. Evidence is presented indicating that the absence of F1 from micronuclei is not a preparative artifact and that histone F1 is replaced by other histone fractions. Since micronuclei divide mitotically, while macronuclei divide amitotically, these results suggest that histone F1 and its phosphorylation do not play an indispensable role in the process of mitotic chromosome condensation, in chromosome replication, or in the separation of newly synthesized chromatids.

摘要

从纤毛原生动物梨形四膜虫的大核和小核染色质中提取组蛋白。导致含有大量组蛋白F1的大核染色质产生的条件,会使小核染色质中不存在这种组蛋白。有证据表明,小核中不存在F1并非制备过程中的假象,且组蛋白F1被其他组蛋白组分所取代。由于小核进行有丝分裂,而大核进行无丝分裂,这些结果表明组蛋白F1及其磷酸化在有丝分裂染色体浓缩过程、染色体复制过程或新合成染色单体的分离过程中并不起不可或缺的作用。

相似文献

1
Absence of histone F1 in a mitotically dividing, genetically inactive nucleus.
Proc Natl Acad Sci U S A. 1975 Jul;72(7):2672-6. doi: 10.1073/pnas.72.7.2672.
6
Subunit structure of a naturally occurring chromatin lacking histones F1 and F3.
Proc Natl Acad Sci U S A. 1975 Sep;72(9):3536-40. doi: 10.1073/pnas.72.9.3536.
8
Studies on histone fraction F2A1 in macro- and micronuclei of Tetrahymena pyriformis.
J Cell Biol. 1973 Jun;57(3):773-81. doi: 10.1083/jcb.57.3.773.
9
Purification and characterization of the histones associated with the macronucleus of Tetrahymena.
Biochemistry. 1976 Mar 23;15(6):1249-56. doi: 10.1021/bi00651a012.
10
Histone rearrangements accompany nuclear differentiation and dedifferentiation in Tetrahymena.
Dev Biol. 1984 Feb;101(2):282-94. doi: 10.1016/0012-1606(84)90142-8.

引用本文的文献

1
Histone Tail Cleavage as a Mechanism for Epigenetic Regulation.
Int J Mol Sci. 2024 Oct 8;25(19):10789. doi: 10.3390/ijms251910789.
2
Recent Advances in Doxorubicin Formulation to Enhance Pharmacokinetics and Tumor Targeting.
Pharmaceuticals (Basel). 2023 May 29;16(6):802. doi: 10.3390/ph16060802.
3
Histone tail cleavage as a novel epigenetic regulatory mechanism for gene expression.
BMB Rep. 2018 May;51(5):211-218. doi: 10.5483/bmbrep.2018.51.5.053.
4
The draft assembly of the radically organized Stylonychia lemnae macronuclear genome.
Genome Biol Evol. 2014 Jun 20;6(7):1707-23. doi: 10.1093/gbe/evu139.
5
The DNA of ciliated protozoa.
Microbiol Rev. 1994 Jun;58(2):233-67. doi: 10.1128/mr.58.2.233-267.1994.
6
Isopeptidase: a novel eukaryotic enzyme that cleaves isopeptide bonds.
Proc Natl Acad Sci U S A. 1982 Mar;79(5):1535-9. doi: 10.1073/pnas.79.5.1535.
8
Subunit structure of a naturally occurring chromatin lacking histones F1 and F3.
Proc Natl Acad Sci U S A. 1975 Sep;72(9):3536-40. doi: 10.1073/pnas.72.9.3536.
9
Synthesis of yeast histones in the cell cycle.
Proc Natl Acad Sci U S A. 1976 Jun;73(6):1863-7. doi: 10.1073/pnas.73.6.1863.

本文引用的文献

1
The fine structure of the nuclei of Tetrahymena pyriformis throughout the cell cycle.
J Cell Biol. 1965 Dec;27(3):519-29. doi: 10.1083/jcb.27.3.519.
2
Properties of formaldehyde-treated nucleohistone.
Biochemistry. 1969 Aug;8(8):3214-8. doi: 10.1021/bi00836a013.
4
High resolution acrylamide gel electrophoresis of histones.
Arch Biochem Biophys. 1969 Mar;130(1):337-46. doi: 10.1016/0003-9861(69)90042-3.
5
Variations in the phosphate content of histone F1 in normal and irradiated tissues.
Biochem J. 1968 Nov;110(2):187-91. doi: 10.1042/bj1100187.
6
8
Phosphorylation of mouse ascites tumor cell lysine-rich histone.
Biochemistry. 1970 Nov 10;9(23):4611-5. doi: 10.1021/bi00825a022.
10
Phosphoprotein metabolism in isolated lymphocyte nuclei.
Proc Natl Acad Sci U S A. 1966 May;55(5):1182-9. doi: 10.1073/pnas.55.5.1182.

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验