Results 31 to 40 of about 45,751 (265)

The replacement histone H2A.Z in a hyperacetylated form is a feature of active genes in the chicken [PDF]

, 2005
The replacement histone H2A.Z is variously reported as being linked to gene expression and preventing the spread of heterochromatin in yeast, or concentrated at heterochromatin in mammals.
Bonifer, C., Bruce, K., Crane-Robinson, C., Greaves, I., Lefevre, P., Mantouvalou, E., Myers, F.A., Thorne, A.W., Tremethick, D.J.   +8 more
core   +6 more sources

Imaging the Response to DNA Damage in Heterochromatin Domains

Frontiers in Cell and Developmental Biology, 2022
The eukaryotic genome is assembled in a nucleoprotein complex called chromatin, whose organization markedly influences the repair of DNA lesions. For instance, compact chromatin states, broadly categorized as heterochromatin, present a challenging ...
Audrey Chansard, Enrico Pobega, Pierre Caron, Sophie E. Polo   +3 more
doaj   +1 more source

Local chromatin context regulates the genetic requirements of the heterochromatin spreading reaction.

PLoS Genetics, 2022
Heterochromatin spreading, the expansion of repressive chromatin structure from sequence-specific nucleation sites, is critical for stable gene silencing.
R A Greenstein, Henry Ng, Ramon R Barrales, Catherine Tan, Sigurd Braun, Bassem Al-Sady   +5 more
doaj   +1 more source

Histone variants shape chromatin states in Arabidopsis

eLife, 2023
How different intrinsic sequence variations and regulatory modifications of histones combine in nucleosomes remain unclear. To test the importance of histone variants in the organization of chromatin we investigated how histone variants and histone ...
Bhagyshree Jamge, Zdravko J Lorković, Elin Axelsson, Akihisa Osakabe, Vikas Shukla, Ramesh Yelagandula, Svetlana Akimcheva, Annika Luisa Kuehn, Frédéric Berger   +8 more
doaj   +1 more source

Constitutive heterochromatin polymorphism in river buffalo chromosomes [PDF]

Caryologia, 1995
Constitutive heterochromatin (HC) distribution among river buffalo (Bubalus bubalis L., 2n=50) chromosomes was analyzed by using both the CBA-technique and GBA + CBA technique. CBA-banding revealed the presence of HC in the centromeric regions of all the chromosomes of the 15 animals we investigated.
DI MEO GP, PERUCATTI A, IANNUZZI L, RANGELFIGUEIREDO MT, FERRARA L   +4 more
openaire   +3 more sources

ATXR5 and ATXR6 are H3K27 monomethyltransferases required for chromatin structure and gene silencing. [PDF]

, 2009
Constitutive heterochromatin in Arabidopsis thaliana is marked by repressive chromatin modifications, including DNA methylation, histone H3 dimethylation at Lys9 (H3K9me2) and monomethylation at Lys27 (H3K27me1).
Bernatavichute, Yana V, Cokus, Shawn, Feng, Suhua, Jacob, Yannick, Jacobsen, Steven E, Johnson, Lianna M, LeBlanc, Chantal A, Michaels, Scott D, Pellegrini, Matteo, Stroud, Hume   +9 more
core   +1 more source

Qualitative analysis of constitutive heterochromatin and primate evolution [PDF]

Biological Journal of the Linnean Society, 2003
The results of qualitative heterochromatin analysis in 16 species of primates: Homo sapiens, Pan troglodytes and Gorilla gorilla (F. Hominidae), Hylobates syndactilus (F. Hylobatidae), Macaca fascicularis, M. tibetana, Mandrillus sphinx, M. leucophaeus, Cercopithecus aethiops, C. sabaeus and C. albogularis (F.
F. García, M. Garcı́a, L. Mora, Lourdes Alarcón, J. Egozcue, M. Ponsà   +5 more
openalex   +3 more sources

Detection of chromosome aberrations in the human interphase nucleus by visualization of specific target DNAs with radioactive and non-radioactive in situ hybridization techniques: diagnosis of trisomy 18 with probe L1.84 [PDF]

, 1986
The localization of chromosome 18 in human interphase nuclei is demonstrated by use of radioactive and nonradioactive in situ hybridization techniques with a DNA clone designated L1.84.
A. Brückner, AHN Hopman, AL Jørgensen, AR Mitchell, B Trask, BU Zabel, CD Bloomfield, D Pinkel, GA Rappold, GA Rappold, H Hoehn, H. D. Hager, H. P. Scholl, HF Willard, J Wolfe, J. Landegent, JC Wu, JE Landegent, JE Landegent, L Manuelidis, LA Herzenberg, M Schardin, M Schmid, M Spaeter, M. Schardin, M. van der Ploeg, MM LeBeau, P Devilee, P Devilee, P. Devilee, P. Pearson, T Cremer, T. Cremer, W Schempp   +33 more
core   +1 more source

Accessibility of promoter DNA is not the primary determinant of chromatin-mediated gene regulation [PDF]

, 2019
DNA accessibility is thought to be of major importance in regulating gene expression. We test this hypothesis using a restriction enzyme as a probe of chromatin structure and as a proxy for transcription factors.
Chereji, Razvan V., Clark, David, Eriksson, Peter R., Ocampo, Josefina, Prajapati, Hemant Kumar   +4 more
core   +1 more source

Karyotypic variation in the Andean rodent Phyllotis xanthopygus (Waterhouse, 1837) (Rodentia, Cricetidae, Sigmodontinae) [PDF]

, 2014
Phyllotis xanthopygus (Waterhouse, 1837) is an Andean rodent endemic to South America. Despite its wide geographical distribution in Argentina, few individuals have been studied on the cytogenetic level and only through conventional staining.
Cuello, Pablo Andrés, Labaroni, Carolina Alicia, Lanzone, Cecilia, Malleret, Matías Maximiliano, Marti, Dardo Andrea, Novillo, Agustina, Ojeda, Agustina Alejandra, Ojeda, Agustina Alejandra, Rodriguez, Daniela   +8 more
core   +4 more sources