972 results found
    1. Chromosomes and Gene Expression

    piRNA-guided co-transcriptional silencing coopts nuclear export factors

    Martin H Fabry et al.
    A member of the Drosophila Nuclear Export Factor (Nxf) family, Nxf2, forms part of the piRNA-dependent co-transcriptional silencing complex and is essential for transposon repression in fly ovaries.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Geminivirus-encoded TrAP suppressor inhibits the histone methyltransferase SUVH4/KYP to counter host defense

    Claudia Castillo-González et al.
    A viral protein hijacks the key effector of transcriptional gene silencing, Su(var)3-9, to evade host plant surveillance.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Long non-coding RNA produced by RNA polymerase V determines boundaries of heterochromatin

    Gudrun Böhmdorfer et al.
    Genome-wide identification of long non-coding RNAs produced by RNA Polymerase V identifies their role in heterochromatin maintenance on the boundaries of repressed regions.
    1. Stem Cells and Regenerative Medicine

    Sequential activation of transcriptional repressors promotes progenitor commitment by silencing stem cell identity genes

    Noemi Rives-Quinto et al.
    Silencing of stem cell identity genes during progenitor commitment ensures that intermediate progenitors robustly commit to generate differentiated cell types rather than abnormal stem-cell-like cells during indirect neurogenesis.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    The MBD7 complex promotes expression of methylated transgenes without significantly altering their methylation status

    Dongming Li et al.
    The METHYL-CpG-BINDING DOMAIN 7 (MBD7) complex promotes the activation (rather than repression) of transgenes that undergo DNA methylation and it does so without significantly altering their methylation status, placing this complex downstream of DNA methylation.
    1. Chromosomes and Gene Expression

    Dimerisation of the PICTS complex via LC8/Cut-up drives co-transcriptional transposon silencing in Drosophila

    Evelyn L Eastwood et al.
    Heterochromatin formation at transposon loci depends on dimerisation of the effector complex that elicits co-transcriptional silencing and this requirement is fulfilled by co-option of the conserved dimerisation hub protein, Cut-up/LC8.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    PCGF6-PRC1 suppresses premature differentiation of mouse embryonic stem cells by regulating germ cell-related genes

    Mitsuhiro Endoh et al.
    PCGF6 links sequence specific target recognition by the MAX/MGA transcription factor complex to PRC1 (polycomb repressive complex 1) -dependent transcriptional silencing of germ cell-specific genes in mouse pluripotent stem cells.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    Maternally inherited piRNAs direct transient heterochromatin formation at active transposons during early Drosophila embryogenesis

    Martin H Fabry et al.
    Maternally deposited Piwi-piRNA complexes co-transcriptionally repress transposable elements that transiently become active in somatic cells of the developing Drosophila embryo.
    1. Chromosomes and Gene Expression

    A KRAS-directed transcriptional silencing pathway that mediates the CpG island methylator phenotype

    Ryan W Serra et al.
    A pathway directed by the KRAS oncoprotein leads to aberrant hypermethylation and transcriptional silencing of many genes including tumor suppressors, thereby promoting tumor development.
    1. Chromosomes and Gene Expression

    Spen links RNA-mediated endogenous retrovirus silencing and X chromosome inactivation

    Ava C Carter et al.
    A long noncoding RNA uses viral mimicry to achieve developmental gene silencing across a chromosome.

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