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Showing: 1 - 3 of 3 results
  1. Lighting Up Cell Signaling with Photoswitchable Kinases

    Type
    Blog Post
    Published
    July 25, 2017, 1:20 p.m.
    ...cyan light, Dronpa dimers dissociate, Dronpa goes dark, and MEK1 is active or “on.” Dronpa’s color thus... the Dronpa dimers interact and lock MEK1 in an “off” setting by blocking the active site. Dronpa also...Additionally, dimeric Dronpa is less prone to aggregation in cells compared to the tetrameric Dronpa it was derived...activity by attaching two dimerizing photoswitchable Dronpa (dron= a ninja term for vanishing, and pa= photoactivation...similarity. For these three kinases, photoswitchable Dronpa domains were inserted at sites homologous to the...pulse of 500 nm light (turn on psRaf1) followed by 3 seconds of 400 nm light (turn off psRaf1). After this...is responsible for this MEK1/2 negative feedback. 3. Studying signaling pathways in vivo Expressing photoswitchable...
  2. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    Published
    April 25, 2017, 2:30 p.m.
    ...both activates and inactivates Dronpa is not ideal, since this means Dronpa is quickly inactivated and less...known reversible PA-FP is the naturally occurring Dronpa protein (named after dron, a ninja term for vanishing...vanishing, and pa, for photoactivation) (6). Dronpa is photoactivated by blue wavelengths of light, causing...chromophore, leading to a non-fluorescent state. Dronpa can be reversibly reactivated by exposure to UV...scientists used mutagenesis screens to find a version of Dronpa that doesn't become inactivated as quickly. Padron...monomeric, reversible PA-FP derived from mutating Dronpa (T59M / V60A / N94I / P141L / G155S / V157G / M159Y...positive” switching behavior is the opposite of Dronpa; when exposed to blue light, Padron is photoconverted...
  3. Optogenetics + CRISPR, Using Light to Control Genome Editing

    Type
    Blog Post
    Published
    Sept. 3, 2020, 12:15 p.m.
    ... expanded version by Nyla Naim was published Sept 3, 2020.   Scientists around the world have been making...dimeric green fluorescent protein (pdDronpa) (Zhou et al., 2018). pdDronpa dimers dissociate in response to... to cyan light (500nm). By fusing the two pdDronpa domains to the sites flanking the DNA-binding cleft...binding in the dark. Upon light stimulation, the pdDronpa moieties move apart, allowing DNA binding and ...Cas9, dCas9 Gene editing Zhou et al., 2018   pdDronpa Cas9, dCas9 Gene editing, transcription Light-Dependent...
Showing: 1 - 3 of 3 results