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Updated: Jan 30, 2026

Utilizing Soil Density Fractionation to Separate Distinct Soil Carbon Pools
Published on: December 16, 2022
Spatially distinct pools of TORC1 balance protein homeostasis
Vikramjit Lahiri1, Daniel J Klionsky1
1a Life Sciences Institute, and Department of Molecular, Cellular and Developmental Biology , University of Michigan , Ann Arbor , MI , USA.
Abstract:
In eukaryotes, TORC1/MTORC1 is a critical regulator of growth and proliferation. In response to nutrient abundance TORC1/MTORC1 favors anabolic processes and retards degradative ones. In S. cerevisiae, TORC1 is conventionally known to localize on the vacuolar membrane. In the course of their recent investigations, Hatakeyama et al. discovered a novel second site of TORC1 localization- the prevacuolar endosome. Their article, highlighted here, discusses the mechanism of TORC1 localization to the prevacuolar endosome and highlights a hitherto unappreciated mechanism by which 2 spatially separated pools of TORC1 execute the distinct functions of promoting anabolism and inhibiting degradation.
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