340 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Holocentromeres are dispersed point centromeres localized at transcription factor hotspots

    Florian A Steiner, Steven Henikoff
    Worm holocentromeres show a polycentric distribution, with each site containing a single centromeric nucleosome and also being targeted by multiple transcription factors.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    The pseudo GTPase CENP-M drives human kinetochore assembly

    Federica Basilico et al.
    Centromeric protein M (CENP-M) is required for the stabilization of a quaternary complex that plays a crucial role in kinetochore organization and function.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Structural evidence for Scc4-dependent localization of cohesin loading

    Stephen M Hinshaw et al.
    Cohesin loading at centromeres depends on a conserved surface cluster of amino-acid residues on the cohesin loading protein, Scc4.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The COMA complex interacts with Cse4 and positions Sli15/Ipl1 at the budding yeast inner kinetochore

    Josef Fischböck-Halwachs et al.
    The chromosomal passenger complex interacts with the inner kinetochore COMA complex through the Ctf19 C-terminus in vitro which is shown to be important for mediating accurate chromosome segregation.
    1. Chromosomes and Gene Expression

    Genome-wide alterations of uracil distribution patterns in human DNA upon chemotherapeutic treatments

    Hajnalka L Pálinkás et al.
    Human genomic DNA contains uracil in the late replicating, constitutive heterochromatic regions, while treatment with drugs perturbing thymidylate biosynthesis shifts the uracil distribution pattern towards the euchromatin in UNG-inhibited cells.
    1. Chromosomes and Gene Expression

    The budding yeast Centromere DNA Element II wraps a stable Cse4 hemisome in either orientation in vivo

    Steven Henikoff et al.
    A stable tetrameric nucleosome occupies the central segment of each ∼120-bp budding yeast centromere in two rotational phases of both reflectional orientations in vivo.
    1. Chromosomes and Gene Expression
    2. Developmental Biology

    SMC5/6 is required for replication fork stability and faithful chromosome segregation during neurogenesis

    Alisa Atkins et al.
    The structural maintenance of chromosomes complex, SMC5/6, is crucial for brain development and function as it ensures proficient DNA replication in neural progenitor cells prior to chromosome segregation.
    1. Developmental Biology

    A complex regulatory landscape involved in the development of mammalian external genitals

    Ana Rita Amândio et al.
    In vertebrates, large regulatory landscapes sometimes behave as coherent regulatory units, which may explain the lack of effect sometimes observed when single enhancer sequences are deleted in isolation.
    1. Chromosomes and Gene Expression

    Histone H3G34R mutation causes replication stress, homologous recombination defects and genomic instability in S. pombe

    Rajesh K Yadav et al.
    Mutation of Glycine 34 to Arginine within the N-terminal tail of histone H3 alters post-translational modifications on Lysine 36 and is associated with a delay in replication restart, defective homologous recombination and an increase in genomic instability.
    1. Chromosomes and Gene Expression

    Temporal dynamics and developmental memory of 3D chromatin architecture at Hox gene loci

    Daan Noordermeer et al.
    Hox genes are activated sequentially and, at the same time, undergo a transition from an inactive to an active chromatin compartment, most likely to prevent posterior genes being activated too early.

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