Results 91 to 100 of about 148,408 (312)

A Functionally Conserved Enhancer is Critical for PGC1A Expression and Thermogenesis in Brown Fat

open access: yesAdvanced Science, EarlyView.
An evolutionarily conserved enhancer controls PGC1A expression and thermogenic activation in brown adipose tissue. Integrative multi‐omics analyses identify two BAT‐specific enhancers, with PGC1A‐En1 functioning as the dominant regulatory element that maintains thermogenic capacity across species.
Duo Su   +10 more
wiley   +1 more source

Predicting nucleosome positioning using a duration Hidden Markov Model

open access: yesBMC Bioinformatics, 2010
Background The nucleosome is the fundamental packing unit of DNAs in eukaryotic cells. Its detailed positioning on the genome is closely related to chromosome functions.
Widom Jonathan   +5 more
doaj   +1 more source

Chromatin Structure in the Cellular Slime Mold Dictyostelium discoideum [PDF]

open access: yes, 1978
The structure of Dictyostelium discoideum chromatin has been studied by the following techniques: electron microscopy, staphylococcal nuclease digestion, acrylamide gel electrophoresis, sucrose gradient centrifugation, and melting.
Bakke, Antony C.   +2 more
core  

The BAH domain of Rsc2 is a histone H3 binding domain [PDF]

open access: yes, 2013
Bromo-adjacent homology (BAH) domains are commonly found in chromatin-associated proteins and fall into two classes; Remodels the Structure of Chromatin (RSC)-like or Sir3-like. Although Sir3-like BAH domains bind nucleosomes, the binding partners of RSC-
Adams   +61 more
core   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

open access: yesAdvanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao   +8 more
wiley   +1 more source

NUCOME: A comprehensive database of nucleosome organization referenced landscapes in mammalian genomes

open access: yesBMC Bioinformatics, 2021
Background Nucleosome organization is involved in many regulatory activities in various organisms. However, studies integrating nucleosome organization in mammalian genomes are very limited mainly due to the lack of comprehensive data quality control (QC)
Xiaolan Chen   +3 more
doaj   +1 more source

Polymer reptation and nucleosome repositioning

open access: yes, 2001
We consider how beads can diffuse along a chain that wraps them, without becoming displaced from the chain; our proposed mechanism is analogous to the reptation of "stored length" in more familiar situations of polymer dynamics. The problem arises in the
D. Keller   +18 more
core   +2 more sources

Identification of H3K4me1-associated proteins at mammalian enhancers. [PDF]

open access: yes, 2017
Enhancers act to regulate cell-type-specific gene expression by facilitating the transcription of target genes. In mammalian cells, active or primed enhancers are commonly marked by monomethylation of histone H3 at lysine 4 (H3K4me1) in a cell-type ...
Albuquerque, Claudio P   +13 more
core   +2 more sources

The DNA-encoded nucleosome organization of a eukaryotic genome

open access: yesNature, 2009
Nucleosome organization is critical for gene regulation. In living cells this organization is determined by multiple factors, including the action of chromatin remodellers, competition with site-specific DNA-binding proteins, and the DNA sequence ...
Noam Kaplan   +10 more
semanticscholar   +1 more source

DNA Replication Errors Drive Genome‐Wide Small Inverted Triplication Dynamics

open access: yesAdvanced Science, EarlyView.
This study provides insight into the dynamic equilibrium mechanism of a novel structural variant, small inverted triplication (SIT), which is generated by misalignment of the 3’ flap generated under DNA replication stress with palindromic sequence. Alternatively, the end sequence may fold back on itself to form an inverted fragment.
Yi Lei   +12 more
wiley   +1 more source

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