Results 121 to 130 of about 7,352 (214)

Free energy profiles for unwrapping the outer superhelical turn of nucleosomal DNA under torsional stress

, 2019
Torsional stress gives a significant impact on the structure and dynamics of chromatin. For example, the torsion stress generates supercoiling in chromatin, where negatively supercoiled domains form a decompacted large-scale chromatin structure and are ...
Kono, Hidetoshi, Ishida, Hisashi, 820543, 820544, 820541, 820542   +5 more
core  

Initiation of Agrobacterium tumefaciens T-DNA processing: purified proteins VirD1 and VirD2 catalyze site- and strand-specific cleavage of superhelical T-border DNA in vitro

, 1995
T-DNA processing during agroinfection of plants is initiated by site- and strand-specific incision at the T-DNA border sequences of the Ti plasmid. Two proteins are required for this reaction: VirD2 (49.6 kDa), catalyzing a site-specific cleaving-joining
Scheiffele, Peter, Pansegrau, W., Lanka, E.   +2 more
core  

Synthesis of Superhelical Simian Virus 40 Deoxyribonucleic Acid in Cell Lysates*

In vivo-labeled SV40 replicating DNA molecules can be converted into covalently closed superhelical SV40 DNA (SV40(I) using a lysate of sv40-infected monkey cells containing intact nuclei.
Berg, P., DePamphilis, M. L., Beard, P.
core   +1 more source

Linker histone/DNA interactions : in vitro studies

By studying the linker histone/DNA complex in vitro, our goal was to gain further insight into the interaction of these histones in chromatin structure, which, in turn, helps us in better understanding critical biological processes such as replication ...
Hassan, Ahmed H.
core  

Structural studies on DNA using two single-strand specific nucleases from Neurospora crassa.

, 1973
An exonuclease and an endonuclease from N. crassa, highly specific for single-stranded nucleic acids, were used in structural studies on DNA. The exonuclease was used in the identification of repetitive sequences in E. coli DNA.
Kato, Ann C.
core  

Commentary: Novel mtDNA methylation-associated prognostic signatures in colorectal cancer. [PDF]

Front Oncol
Jiang X, Zhang X, Wang M.
europepmc   +1 more source

Supercoils in human DNA.

, 1975
The three-dimensional structure of a double-stranded DNA molecule may be described by distinguishing the helical turns of the DNA duplex from any superhelical turns that might be superimposed upon the duplex turns. There are characteristic changes in the
Cook, Peter, Brazell, IA, Cook, PR
core  

Stemless molecular beacon probes for single-molecule detection of supercoil-induced DNA denaturation. [PDF]

NPJ Biol Phys Mech
Shaheen C, Caminada B, Hilts A, Wei R, Botham J, Johnson R, Vardanyan N, Boateng E, Leslie S.   +8 more
europepmc   +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