589 results found
    1. Neuroscience

    The activity-dependent histone variant H2BE modulates the life span of olfactory neurons

    Stephen W Santoro, Catherine Dulac
    A genome-organizing protein that is present only in the olfactory system of mice has been found to orchestrate changes in the relative numbers of different odor-sensing neurons on the basis of how active these neurons are.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The AFF4 scaffold binds human P-TEFb adjacent to HIV Tat

    Ursula Schulze-Gahmen et al.
    Structure-function analysis of the super elongation complex formed when HIV replicates inside cells reveals that the HIV-1 Tat protein binds to a cleft between P-TEFb, an enzyme that is involved in normal transcription, and AFF4, a protein that is used to build the super elongation complex
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Mechanism for priming DNA synthesis by yeast DNA Polymerase α

    Rajika L Perera et al.
    The details of how the enzyme DNA polymerase α initiates the polymerization of nucleotides in DNA replication, a critical step in the synthesis of new chromosomal DNA, have been revealed in atomic detail.
    1. Structural Biology and Molecular Biophysics
    2. Neuroscience

    Native α-synuclein induces clustering of synaptic-vesicle mimics via binding to phospholipids and synaptobrevin-2/VAMP2

    Jiajie Diao et al.
    Experiments on synthetic models of synaptic vesicles have shed new light on the role of the protein α-synuclein in the central nervous system.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    EBI2-mediated bridging channel positioning supports splenic dendritic cell homeostasis and particulate antigen capture

    Tangsheng Yi, Jason G Cyster
    The receptor EBI2 is essential for correctly positioning CD4+ dendritic cells in the spleen so that they can present blood-borne antigens to T cells and thereby provoke an antibody response.
    1. Stem Cells and Regenerative Medicine
    2. Immunology and Inflammation

    MicroRNA-146a acts as a guardian of the quality and longevity of hematopoietic stem cells in mice

    Jimmy L Zhao et al.
    Chronic and excessive inflammation can lead to exhaustion of the supply of hematopoietic stem cells and to myeloid malignancies in mice, mimicking important aspects of the myelodysplastic syndrome found in humans.
    1. Cell Biology
    2. Neuroscience

    Pharmacological brake-release of mRNA translation enhances cognitive memory

    Carmela Sidrauski et al.
    A compound that prevents stressors such as UV light and viral infection from downregulating protein synthesis inside cells improves memory performance in mice.
    1. Stem Cells and Regenerative Medicine
    2. Chromosomes and Gene Expression

    Histone demethylase Lsd1 represses hematopoietic stem and progenitor cell signatures during blood cell maturation

    Marc A Kerenyi et al.
    Lysine-specific demethylase 1 (Lsd1) has an essential role during both the early and later stages of blood cell development.
    1. Developmental Biology
    2. Genetics and Genomics

    The genome sequence of the colonial chordate, Botryllus schlosseri

    Ayelet Voskoboynik et al.
    The Botryllus schlosseri genome yields insights into the evolution of hematopoiesis.

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