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Showing 1-13 of 13 Resources
  • Top Notch Model Organism

    Top Notch Model Organism

    Image of the Week

    Close-up of cells in a fruit fly eye at the pupal stage stained with antibodies to the Notch protein.

  • HIV Protease Inhibitors

    HIV Protease Inhibitors

    Activity

    This demonstration models how the HIV protease enzyme functions and how its activity is blocked by a class of anti-HIV drugs.

  • HIV Life Cycle Activities

    HIV Life Cycle Activities

    Collection

    A collection of activities and demonstrations focusing on various aspects of the human immunodeficiency virus (HIV) life cycle. They are designed to be completed individually or as part of the series...

  • Viral DNA Integration

    Viral DNA Integration

    Activity

    In this hands-on activity, students model how a double-stranded DNA copy of the HIV genome is integrated into the host cell DNA.

  • HIV Reverse Transcription and AZT

    HIV Reverse Transcription and AZT

    Activity

    Students model how the anti-HIV drug AZT (azidothymidine) interferes with the process of viral replication.

  • HIV Receptors and Co-receptors

    HIV Receptors and Co-receptors

    Activity

    This demonstration models the first step of the HIV life cycle: the binding of HIV envelope proteins to receptors on human helper T cells.

  • To Brine, Or Not To Brine?

    To Brine, Or Not To Brine?

    Image of the Week

    Soaking your Thanksgiving turkey in a salt solution (brine) alters the arrangement of muscle fiber protein molecules.

  • Structure of Dengue Virus

    Structure of Dengue Virus

    Animation

    (1 min 3 sec) The dengue virus's outer envelope proteins form symmetrical units and overlay the lipid envelope, capsid, and the RNA genome.

  • Biodiversity at a Snail's Pace

    Biodiversity at a Snail's Pace

    Lecture

    (58 min 29 sec) Cone snails have evolved many different toxins for different uses. Total molecular biodiversity may number in the millions.

  • PPAR-delta Activation in the Muscle Cell

    PPAR-delta Activation in the Muscle Cell

    Animation

    (1 min 45 sec) The PPAR-delta receptor activates certain genes in a muscle cell, resulting in the burning of fat.

  • PPAR-gamma Activation in the Fat Cell

    PPAR-gamma Activation in the Fat Cell

    Animation

    (2 min 49 sec) The PPAR-gamma receptor activates certain genes in a fat cell, resulting in the storage of fat and changes in hormone levels.

  • The Proteasome and Protein Regulation

    The Proteasome and Protein Regulation

    Click & Learn

    Learn about the structure and function of this fascinating cellular machine.

  • A Healthy Nervous System: A Delicate Balance

    A Healthy Nervous System: A Delicate Balance

    Lecture

    (58 min 32 sec) Mutations in key genes can lay waste to the nervous system. By studying large families predisposed to developing these genetic disorders, scientists can identify the responsible altered gene.

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