256 results found
    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. Cell Biology

    Probing the catalytic functions of Bub1 kinase using the small molecule inhibitors BAY-320 and BAY-524

    Anna P Baron et al.
    Chemical inhibition of Bub1 shows that the catalytic activity is not required for normal mitotic progression, but it makes chromosome segregation and cell proliferation more sensitive to the effects of the anti-cancer drug Paclitaxel.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Cell Biology

    Multiplexed mRNA assembly into ribonucleoprotein particles plays an operon-like role in the control of yeast cell physiology

    Rohini R Nair et al.
    Prokaryotes use polycistronic messages for coordinated translation, whereas eukaryotic cells may achieve tunable protein synthesis by packaging monocistronic mRNAs into functional multiplexes via co-transcriptional interallelic coupling and non-canonical histone-H4 functions.
    1. Cell Biology

    Mitotic progression, arrest, exit or death relies on centromere structural integrity, rather than de novo transcription

    Marco Novais-Cruz et al.
    Direct live-cell imaging of human cells, combined with RNA-seq, qPCR and in vitro reconstitution essays, reveal that mitotic progression, arrest, exit or death is independent of de novo transcription.
    1. Cancer Biology

    Use of signals of positive and negative selection to distinguish cancer genes and passenger genes

    László Bányai et al.
    In contrast with earlier conclusions, negative selection has a major role in cancer evolution.
    1. Chromosomes and Gene Expression

    Live-cell imaging reveals enhancer-dependent Sox2 transcription in the absence of enhancer proximity

    Jeffrey M Alexander et al.
    Sox2 transcription is not correlated with spatial proximity of its essential regulatory enhancer in embryonic stem cells, suggesting gene transcription is not limited to periods of direct enhancer-promoter contact.
    1. Structural Biology and Molecular Biophysics

    Geometry of antiparallel microtubule bundles regulates relative sliding and stalling by PRC1 and Kif4A

    Sithara Wijeratne, Radhika Subramanian
    Geometrical features of microtubule arrays regulate the collective activity of motor and non-motor proteins.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Kinetochore-independent chromosome segregation driven by lateral microtubule bundles

    Christina C Muscat et al.
    Chromosomes in C. elegans female reproductive cells segregate through motor-driven movement along lateral microtubule bundles.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    Shugoshin biases chromosomes for biorientation through condensin recruitment to the pericentromere

    Kitty F Verzijlbergen et al.
    Shugoshin proteins help to align chromosomes so that copies of the same chromosome attach to microtubules from opposite poles during cell division.

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