Mouse IgG

Centromeres License the Mitotic Condensation of Yeast Chromosome Arms.
Kruitwagen T, Chymkowitch P, Denoth-Lippuner A, Enserink J, Barral Y
During mitosis, chromatin condensation shapes chromosomes as separate, rigid, and compact sister chromatids to facilitate their segregation. Here, we show that, unlike wild-type yeast chromosomes, non-chromosomal DNA circles and chromosomes lacking a centromere fail to condense during mitosis. The centromere promote...

A novel FOXA1/ESR1 interacting pathway: A study of Oncomine™ breast cancer microarrays
Chaudhary S. et al.
Forkhead box protein A1 (FOXA1) is essential for the growth and differentiation of breast epithelium, and has a favorable outcome in breast cancer (BC). Elevated FOXA1 expression in BC also facilitates hormone responsiveness in estrogen receptor (ESR)-positive BC. However, the interaction between these two pathways ...

TET-Catalyzed 5-Hydroxymethylation Precedes HNF4A Promoter Choice during Differentiation of Bipotent Liver Progenitors
Ancey P.B. et al.
Understanding the processes that govern liver progenitor cell differentiation has important implications for the design of strategies targeting chronic liver diseases, whereby regeneration of liver tissue is critical. Although DNA methylation (5mC) and hydroxymethylation (5hmC) are highly dynamic during early embryo...

Differentiation of Mouse Enteric Nervous System Progenitor Cells is Controlled by Endothelin 3 and Requires Regulation of Ednrb by SOX10 and ZEB2
Watanabe Y. et al.
Background & Aims Maintenance and differentiation of progenitor cells in the developing enteric nervous system (ENS) are controlled by molecules such as the signaling protein endothelin 3 (EDN3), its receptor (the endothelin receptor type B, EDNRB), and the transcription factors SRY-box 10 (SOX10) and zinc fi...

High resolution methylation analysis of the HoxA5 regulatory region in different somatic tissues of laboratory mouse during development
Sinha P. et al.
Homeobox genes encode a group of DNA binding regulatory proteins whose key function occurs in the spatial-temporal organization of genome during embryonic development and differentiation. The role of these Hox genes during ontogenesis makes it an important model for research. HoxA5 is a member of Hox gene family pla...

Overexpression of histone demethylase Fbxl10 leads to enhanced migration in mouse embryonic fibroblasts.
Rohde M. et al.
Cell migration is a central process in the development and maintenance of multicellular organisms. Tissue formation during embryonic development, wound healing, immune responses and invasive tumors all require the orchestrated movement of cells to specific locations. Histone demethylase proteins alter transcription ...

Methylation of the Sox9 and Oct4 promoters and its correlation with gene expression during testicular development in the laboratory mouse
Pamnani M et al.
Sox9 and Oct4 are two important regulatory factors involved in mammalian development. Sox9, a member of the group E Sox transcription factor family, has a crucial role in the development of the genitourinary system, while Oct4, commonly known as octamer binding transcription factor 4, belongs to class V of the trans...

Overexpression of caspase 7 is ERα dependent to affect proliferation and cell growth in breast cancer cells by targeting p21(Cip)
Chaudhary S, Madhukrishna B, Adhya AK, Keshari S, Mishra SK
Caspase 7 (CASP7) expression has important function during cell cycle progression and cell growth in certain cancer cells and is also involved in the development and differentiation of dental tissues. However, the function of CASP7 in breast cancer cells is unclear. The aim of this study was to analyze the expressio...

Methylated DNA Immunoprecipitation Analysis of Mammalian Endogenous Retroviruses.
Rebollo R, Mager DL
Endogenous retroviruses are repetitive sequences found abundantly in mammalian genomes which are capable of modulating host gene expression. Nevertheless, most endogenous retrovirus copies are under tight epigenetic control via histone-repressive modifications and DNA methylation. Here we describe a common method us...

Chromatin Immunoprecipitation Assay for the Identification of Arabidopsis Protein-DNA Interactions In Vivo
Komar DN, Mouriz A, Jarillo JA, Piñeiro M
Intricate gene regulatory networks orchestrate biological processes and developmental transitions in plants. Selective transcriptional activation and silencing of genes mediate the response of plants to environmental signals and developmental cues. Therefore, insights into the mechanisms that control plant gene expr...

The genetic association of RUNX3 with ankylosing spondylitis can be explained by allele-specific effects on IRF4 recruitment that alter gene expression
Matteo Vecellio, Amity R Roberts, Carla J Cohen, Adrian Cortes, Julian C Knight, Paul Bowness, B Paul Wordsworth
The authors sought to identify the functional basis for the genetic association of single nucleotide polymorphisms (SNP), upstream of the RUNX3 promoter, with ankylosing spondylitis (AS). They performed conditional analysis of genetic association data and used ENCODE data on chromatin remodelling and transcription f...

ClpX stimulates the mitochondrial unfolded protein response (UPRmt) in mammalian cells
Al-Furoukh N, Ianni A, Nolte H, Hölper S, Krüger M, Wanrooij S, Braun T
Proteostasis is crucial for life and maintained by cellular chaperones and proteases. One major mitochondrial protease is the ClpXP complex, which is comprised of a catalytic ClpX subunit and a proteolytic ClpP subunit. Based on two separate observations, we hypothesized that ClpX may play a leading role in the cell...

Endothelial Msx1 transduces hemodynamic changes into an arteriogenic remodeling response.
Vandersmissen I, Craps S, Depypere M, Coppiello G, van Gastel N, Maes F, Carmeliet G, Schrooten J, Jones EA, Umans L, Devlieger R, Koole M, Gheysens O, Zwijsen A, Aranguren XL, Luttun A
Collateral remodeling is critical for blood flow restoration in peripheral arterial disease and is triggered by increasing fluid shear stress in preexisting collateral arteries. So far, no arterial-specific mediators of this mechanotransduction response have been identified. We show that muscle segment homeobox 1 (M...

DNA methylation directs functional maturation of pancreatic β cells
Dhawan S, Tschen SI, Zeng C, Guo T, Hebrok M, Matveyenko A, Bhushan A.
Pancreatic β cells secrete insulin in response to postprandial increases in glucose levels to prevent hyperglycemia and inhibit insulin secretion under fasting conditions to protect against hypoglycemia. β cells lack this functional capability at birth and acquire glucose-stimulated insulin secretion (GSIS...

Trrap-dependent histone acetylation specifically regulates cell-cycle gene transcription to control neural progenitor fate decisions.
Tapias A, Zhou ZW, Shi Y, Chong Z, Wang P, Groth M, Platzer M, Huttner W, Herceg Z, Yang YG, Wang ZQ
Fate decisions in neural progenitor cells are orchestrated via multiple pathways, and the role of histone acetylation in these decisions has been ascribed to a general function promoting gene activation. Here, we show that the histone acetyltransferase (HAT) cofactor transformation/transcription domain-associated pr...

Alu Elements in ANRIL Non-Coding RNA at Chromosome 9p21 Modulate Atherogenic Cell Functions through Trans-Regulation of Gene Networks.
Holdt LM, Hoffmann S, Sass K, Langenberger D, Scholz M, Krohn K, Finstermeier K, Stahringer A, Wilfert W, Beutner F, Gielen S, Schuler G, Gäbel G, Bergert H, Bechmann I, Stadler PF, Thiery J, Teupser D
The chromosome 9p21 (Chr9p21) locus of coronary artery disease has been identified in the first surge of genome-wide association and is the strongest genetic factor of atherosclerosis known today. Chr9p21 encodes the long non-coding RNA (ncRNA) antisense non-coding RNA in the INK4 locus (ANRIL). ANRIL expression is ...

Genome-wide analysis of LXRα activation reveals new transcriptional networks in human atherosclerotic foam cells.
Feldmann R, Fischer C, Kodelja V, Behrens S, Haas S, Vingron M, Timmermann B, Geikowski A, Sauer S
Increased physiological levels of oxysterols are major risk factors for developing atherosclerosis and cardiovascular disease. Lipid-loaded macrophages, termed foam cells, are important during the early development of atherosclerotic plaques. To pursue the hypothesis that ligand-based modulation of the nuclear recep...

New partners in regulation of gene expression: the enhancer of trithorax and polycomb corto interacts with methylated ribosomal protein l12 via its chromodomain.
Coléno-Costes A, Jang SM, de Vanssay A, Rougeot J, Bouceba T, Randsholt NB, Gibert JM, Le Crom S, Mouchel-Vielh E, Bloyer S, Peronnet F
Chromodomains are found in many regulators of chromatin structure, and most of them recognize methylated lysines on histones. Here, we investigate the role of the Drosophila melanogaster protein Corto's chromodomain. The Enhancer of Trithorax and Polycomb Corto is involved in both silencing and activation of gene ex...

The H3K4me3 histone demethylase Fbxl10 is a regulator of chemokine expression, cellular morphology and the metabolome of fibroblasts
Janzer A, Stamm K, Becker A, Zimmer A, Buettner R, Kirfel J
Fbxl10 (Jhdm1b/Kdm2b) is a conserved and ubiquitously expressed member of the JHDM (JmjC-domain-containing histone demethy-lase) family. Fbxl10 was implicated in the demethylation of H3K4me3 or H3K36me2 thereby removing active chromatin marks and inhibiting gene transcription. Apart from the JmjC domain, Fbxl10 cons...