Results 101 to 110 of about 11,463 (183)

Role of DNA superhelicity in partitioning of the pSC101 plasmid

Cell, 1990
Previous work has shown that a cis-acting locus (termed par for partitioning) on the pSC101 plasmid accomplishes its stable inheritance in dividing cell populations. We report here that the DNA of pSC101 derivatives lacking the par region shows a decrease in overall superhelical density as compared with DNA of wild-type pSC101.
C A, Miller, S L, Beaucage, S N, Cohen
openaire   +2 more sources

Ultraviolet light irradiation of PM2 superhelical DNA

Nucleic Acids Research, 1977
Superhelical PM2 DNA can be photochemically modified by u.v. irradiation. The variation of S20,w with dose shows the following characteristics. There is a linear increase from 28 to 31s produced by a low dose of u.v. irradiation (4,000 ergs/mm2). A plateau in S20,w occurs between 4,000 and 10,000 ergs/mm2.
M, Woodworth-Gutai, J, Lebowitz, A C, Kato, D T, Denhardt   +3 more
openaire   +3 more sources

Multiple structures of RNA polymerase II isolated from human nuclei by ChIP-CryoEM analysis

Nature Communications
RNA polymerase II (RNAPII) is a central transcription enzyme that exists as multiple forms with or without accessory factors, and transcribes the genomic DNA packaged in chromatin.
Tomoya Kujirai, Junko Kato, Kyoka Yamamoto, Seiya Hirai, Takeru Fujii, Kazumitsu Maehara, Akihito Harada, Lumi Negishi, Mitsuo Ogasawara, Yuki Yamaguchi, Yasuyuki Ohkawa, Yoshimasa Takizawa, Hitoshi Kurumizaka   +12 more
doaj   +1 more source

Sequence-specific double-strand cleavage of DNA by penta-N-methylpyrrolecarboxamide-EDTA·Fe(II) [PDF]

, 1983
In the presence of O2 and 5 mM dithiothreitol, penta-N-methylpyrrolecarboxamide-EDTA·Fe(II) [P5E·Fe(II)] at 0.5 µ M cleaves pBR322 plasmid DNA (50 µ M in base pairs) on opposite strands to afford discrete DNA fragments as analyzed by agarose gel ...
Dervan, Peter B., Schultz, Peter G.
core  

Supercoiled DNA: Structure [PDF]

, 2005
Bowater, RP
core   +1 more source

Chromatin assembly extracts from Drosophila embryos. [PDF]

, 1994
Becker, Peter B., Tsukiyama, Toshio, Wu, Carl   +2 more
core   +1 more source

Research progress on molecular mechanisms of nuclear-imported transport for baculovirus proteins(杆状病毒蛋白入核转运的分子机制研究进展)

浙江大学学报. 农业与生命科学版
Baculovirus is a type of virus with a double-stranded, circular, and superhelical DNA structure. The replication and transcription of viral genes, as well as the assembly of progeny virions, occur in the nucleus of the cell. However, owing to the natural
李佳乐(LI Jiale), 王星洋(WANG Xingyang), 吴小锋(WU Xiaofeng)   +2 more
doaj   +1 more source

Abstracts

Cancer Science, Volume 116, Issue S1, Page 1-1975, January 2025.
wiley   +1 more source

ANKLE1 processes chromatin bridges by cleaving mechanically stressed DNA. [PDF]

Nat Commun
Jiang H, He F, Kong N, Long J, Poon YC, Punatar RS, Xu Z, Zhai Y, West SC, Efremov AK, Chan YW.   +10 more
europepmc   +1 more source

H2A.Z-nucleosomes are stabilized by the superhelicity-dependent DNA binding of the C-terminal tail of the histone variant. [PDF]

Nucleus
Benhamza I, Imre L, Yu Z, Nanasi P, Sen P, Enyedi KN, Goda K, Vamosi G, Szabo G.   +8 more
europepmc   +1 more source