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A novel combinatorial approach of quantitative microscopy and in silico modeling deciphers Arf1-dependent Golgi size regulation

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Abstract.

Regulation of organelle size and shape is a poorly understood but fascinating subject. Several theoretical studies were reported on Golgi size regulation, but a combination of experimental and theoretical approaches is rare. In combination with the quantitative microscopy and a coarse-grained simulation model, we have developed a technique to gain insights into the functions of potential regulators of Golgi size in budding yeast Saccharomyces cerevisiae. To validate our method, we tested wild-type and arf1\(\Delta\) strain harboring early and late Golgi cisternae labeled with green and red fluorescent fusions. Our concentration-dependent maturation model prediction concurs with most of the experimental results for both wild-type and arf1\(\Delta\) strains. Decisive match of simulation and experimental data provide insight into such specific factor's function in regulating the Golgi size. Details of the complex multifactorial network of Golgi size regulation can be deciphered in the future using a similar combination of quantitative microscopy and in silico model.

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Authors and Affiliations

  1. Department of Cell and Tumor Biology, Advanced Centre for Treatment Research & Education in Cancer (ACTREC), Tata Memorial Centre, Plot No. 1 & 2, Sector 22, Kharghar, 410210, Navi Mumbai, Maharashtra, India

    Prasanna Iyer & Dibyendu Bhattacharyya

  2. Homi Bhabha National Institute, Training School Complex, Anushakti Nagar, MH 400085, Mumbai, India

    Prasanna Iyer & Dibyendu Bhattacharyya

  3. Department of Solid State Physics, Indian Association for the Cultivation of Science, 700032, Jadavpur, Kolkata, India

    Sabyasachi Sutradhar & Raja Paul

Authors
  1. Prasanna Iyer
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  2. Sabyasachi Sutradhar
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  3. Raja Paul
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  4. Dibyendu Bhattacharyya
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Correspondence to Dibyendu Bhattacharyya.

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Iyer, P., Sutradhar, S., Paul, R. et al. A novel combinatorial approach of quantitative microscopy and in silico modeling deciphers Arf1-dependent Golgi size regulation. Eur. Phys. J. E 42, 154 (2019). https://doi.org/10.1140/epje/i2019-11920-x

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  • DOI: https://doi.org/10.1140/epje/i2019-11920-x

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