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Journal ArticleDOI

Meiotic recombination hot spots and cold spots

TLDR
The authors showed that the distribution of recombination events in eukaryotic genomes might reflect global features of chromosome structure, such as distribution of modified nucleosomes, which can hinder the ability of geneticists to identify genes by map-based techniques.
Abstract
Meiotic recombination events are distributed unevenly throughout eukaryotic genomes This inhomogeneity leads to distortions of genetic maps that can hinder the ability of geneticists to identify genes by map-based techniques Various lines of evidence, particularly from studies of yeast, indicate that the distribution of recombination events might reflect, at least in part, global features of chromosome structure, such as the distribution of modified nucleosomes

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A second generation human haplotype map of over 3.1 million SNPs

Kelly A. Frazer, +237 more
- 18 Oct 2007 - 
TL;DR: The Phase II HapMap is described, which characterizes over 3.1 million human single nucleotide polymorphisms genotyped in 270 individuals from four geographically diverse populations and includes 25–35% of common SNP variation in the populations surveyed, and increased differentiation at non-synonymous, compared to synonymous, SNPs is demonstrated.
Journal ArticleDOI

The genome sequence of the filamentous fungus Neurospora crassa

James E. Galagan, +77 more
- 24 Apr 2003 - 
TL;DR: A high-quality draft sequence of the N. crassa genome is reported, suggesting that RIP has had a profound impact on genome evolution, greatly slowing the creation of new genes through genomic duplication and resulting in a genome with an unusually low proportion of closely related genes.
Journal ArticleDOI

RNA in unexpected places: long non-coding RNA functions in diverse cellular contexts

TL;DR: A paradigm in which lncRNAs regulate transcription via chromatin modulation is supported, but new functions are steadily emerging, including post-transcriptional regulation, organization of protein complexes, cell-cell signalling and allosteric regulation of proteins.
References
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Journal ArticleDOI

The language of covalent histone modifications.

TL;DR: It is proposed that distinct histone modifications, on one or more tails, act sequentially or in combination to form a ‘histone code’ that is, read by other proteins to bring about distinct downstream events.
Journal ArticleDOI

A Toll-like receptor recognizes bacterial DNA.

TL;DR: It is shown that cellular response to CpG DNA is mediated by a Toll-like receptor, TLR9, and vertebrate immune systems appear to have evolved a specific Toll- like receptor that distinguishes bacterial DNA from self-DNA.
Journal ArticleDOI

DNA Double-stranded Breaks Induce Histone H2AX Phosphorylation on Serine 139

TL;DR: In this paper, a histone H2AX species that has been phosphorylated specifically at serine 139 was found to be a major component of DNA double-stranded break.
Journal ArticleDOI

Histone acetylation in chromatin structure and transcription

TL;DR: The amino termini of histones extend from the nucleosomal core and are modified by acetyltransferases and deacetylases during the cell cycle, which may direct histone assembly and help regulate the unfolding and activity of genes.
Journal ArticleDOI

Methylation of histone H3 lysine 9 creates a binding site for HP1 proteins.

TL;DR: It is shown that mammalian methyltransferases that selectively methylate histone H3 on lysine 9 (Suv39h HMTases) generate a binding site for HP1 proteins—a family of heterochromatic adaptor molecules implicated in both gene silencing and supra-nucleosomal chromatin structure.
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