Protocols in Current Issue
    Systematic Quantification of GFP-tagged Protein Foci in Schizosaccharomyces pombe Nuclei
    Authors:  Kim Kiat Lim and Ee Sin Chen, date: 12/20/2018, view: 1110, Q&A: 0
    [Abstract] DNA damage repair proteins form foci in response to DNA damaging agents. The efficiency and integrity of the DNA repair pathway of a particular eukaryotic (mutant) strain is usually determined by the number of foci formed compared with their wild-type counterpart. Conventionally, focus number is determined visually, and this low accuracy may ...
    Identifying Protein Interactions with Histone Peptides Using Bio-layer Interferometry
    Authors:  Bingbing Ren, Ahmed Mahmoud Mohammed Sayed, Hwei Ling Tan, Yu Keung Mok and Ee Sin Chen, date: 09/20/2018, view: 1834, Q&A: 0
    [Abstract] Histone post-translational modifications (PTMs) regulate numerous cellular processes, including gene transcription, cell division, and DNA damage repair. Most histone PTMs affect the recruitment or exclusion of reader proteins from chromatin. Here, we present a protocol to measure affinity and interaction kinetics between histone peptides and the ...
    A Microfluidic Device for Massively Parallel, Whole-lifespan Imaging of Single Fission Yeast Cells
    Authors:  Stephen K Jones Jr, Eric C Spivey, James R Rybarski and Ilya J Finkelstein, date: 04/05/2018, view: 2755, Q&A: 0
    [Abstract] Whole-lifespan single-cell analysis has greatly increased our understanding of fundamental cellular processes such as cellular aging. To observe individual cells across their entire lifespan, all progeny must be removed from the growth medium, typically via manual microdissection. However, manual microdissection is laborious, low-throughput, and ...
    Single-step Marker Switching in Schizosaccharomyces pombe Using a Lithium Acetate Transformation Protocol
    Authors:  Simon David Brown and Alexander Lorenz, date: 12/20/2016, view: 4718, Q&A: 0
    [Abstract] The ability to utilize different selectable markers for tagging or mutating multiple genes in Schizosaccharomyces pombe is hampered by the historical use of only two selectable markers, ura4+ and kanMX6; the latter conferring resistance to the antibiotic G418 (geneticin). More markers have been described ...
    Chromatin Fractionation Assay in Fission Yeast
    Authors:  Tatsuki Kunoh and Toshiyuki Habu, date: 07/20/2014, view: 7124, Q&A: 0
    [Abstract] The protein recruitment onto chromatin is a critical process for DNA metabolism, including DNA replication, DNA repair and DNA recombination. Especially DNA modification enzymes and checkpoint proteins are loaded onto DNA damage sites in a context-dependent manner. In our recent study (Kunoh and Habu, 2014), the chromatin association of Pcf1, a ...
    Fluorescence Recovery After Photobleaching (FRAP) in the Fission Yeast Nucleus
    [Abstract] We use fluorescence recovery after photobleaching (FRAP) to calculate the diffusion coefficient of GFP in the nucleoplasm of fission yeast. The FRAP method can be generally used to measure the mobility of proteins inside the cell or its organelles.
    In our experiment we only measured the diffusion of GFP inside the nucleoplasm of fission ...

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