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Updated: Sep 30, 2025

Study of Protein-protein Interactions in Autophagy Research
Published on: September 9, 2017
MYCT1 alters the glycogen shunt by regulating selective translation of RACK1-mediated enzymes
Dong-Xue Ding1, Yue Wang1, Wei Yan2
1Department of Medical Genetics, China Medical University, Shenyang, China.
Abstract:
MYCT1 has been shown to function as a tumor suppressor in various tumors, but its role in metabolism has never been reported. Here, we showed that global inactivation of Myct1 in mice led to progressive accumulation of glycogen in the liver, which was accompanied by aberrant changes in intermediates of the glycogen metabolic pathway. Mechanistically, MYCT1 appeared to promote translation efficiency of PGM1, UGP2 and GSK3A in hepatic cells in a RACK1-dependent manner. Consequently, upregulation of the three enzymes enhanced the glycogen shunt. Our data reveal a critical role of MYCT1 as a switch for the glycogen shunt in tumor cells.
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