Results 51 to 60 of about 353,053 (207)
Constitutive heterochromatin in chromosomes of duck hybrids and goose hybrids
Poultry Science, 2017 &NA; Constitutive heterochromatin is a highly condensed fraction of chromatin in chromosomes. It is characterized by a high degree of polymorphism. Heterochromatin is located in the centromeric, telomeric, and interstitial parts of chromosomes.
E. Wójcik, E. Smalec
semanticscholar +1 more source
Genetics and Molecular Biology, 2005 Meiotic chromosomes obtained from members of the coleopteran subfamilies Rutelinae and Dynastinae were studied using standard and silver nitrate staining, C-banding, base-specific fluorochromes and fluorescent in situ hybridization (FISH).
Edgar Bione +3 more
doaj +1 more source
HP1 recruits activity-dependent neuroprotective protein to H3K9me3 marked pericentromeric heterochromatin for silencing of major satellite repeats. [PDF]
PLoS ONE, 2011 H3 lysine 9 trimethylation (H3K9me3) is a histone posttranslational modification (PTM) that has emerged as hallmark of pericentromeric heterochromatin.
Kerstin Mosch +4 more
doaj +1 more source
CAF-1 is essential for heterochromatin organization in pluripotent embryonic cells. [PDF]
PLoS Genetics, 2006 During mammalian development, chromatin dynamics and epigenetic marking are important for genome reprogramming. Recent data suggest an important role for the chromatin assembly machinery in this process. To analyze the role of chromatin assembly factor 1
Martin Houlard +6 more
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Cytogenetic studies in four cultivated Amaranthus (Amaranthaceae) species
Comparative Cytogenetics, 2013 In the present study, the chromosomes numbers were confirmed, 2n = 34 for Amaranthus cruentus Linnaeus, 1759, and 2n = 32 for A. hypochondriacus Linnaeus, 1753, A. mantegazzianus Passer, 1864, and A. caudatus Linnaeus, 1753.
Marisa Bonasora +2 more
doaj +1 more source
A complex interplay between H2A.Z and HP1 isoforms regulates pericentric heterochromatin
Frontiers in Cell and Developmental Biology, 2023 Pericentric heterochromatin (PCH) plays an essential role in the maintenance of genome integrity and alterations in PCH have been linked to cancer and aging.
Jessica González +19 more
doaj +1 more source
Comparative Cytogenetics, 2014 Tityus trivittatus Kraepelin, 1898 is the most medically important scorpion species of Argentina, and parthenogenetic populations are present in the major cities of this country.
Renzo S. Adilardi +3 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Oct4‐nanoscript, a biomimetic nanoparticle‐based artificial transcription factor, precisely regulates cellular rejuvenation by activating Oct4 target genes, restoring epigenetic marks, and reducing DNA damage. In a progeria model, it effectively rescued aging‐associated pathologies and extended lifespan.
Hongwon Kim +8 more
wiley +1 more source
The Possible Association between Constitutive Heterochromatin Polymorphism and Human Leukemias [PDF]
Cell Journal, 2007 Objective: Polymorphism of the size of heterochromatin region of chromosomes has been well documented in human genome and it consists of DNA sequences that are not transcribed.
Abolfazl Movafagh +3 more
doaj
Affinity, stoichiometry and cooperativity of heterochromatin protein 1 (HP1) binding to nucleosomal arrays [PDF]
, 2014 Heterochromatin protein 1 (HP1) participates in establishing and maintaining heterochromatin via its histone modification dependent chromatin interactions. In recent papers HP1 binding to nucleosomal arrays was measured in vitro and interpreted in terms of nearest-neighbor cooperative binding. This mode of chromatin interactions could lead to spreading
arxiv +1 more source