Zengrong Li

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Sorbitol dehydrogenase (SDH) catalyzes the interconversion of polyols and ketoses, using zinc and NAD(+) as cofactors. SDH converts sorbitol into fructose and plays an important role in the sorbitol metabolic pathway and in the early embryonic development of many invertebrates. Sorbitol usually accumulates in diapause embryos of insects to protect the(More)
Glycogen serves as a metabolic reserve and is involved in macromolecular synthesis. Glycogen phosphorylase (GPase) is a key enzyme involved in intracellular glycogen catabolism, catalyzing the first step in glycogen degradation. In the diapause, GPase catalyzes glycogen into the closely related molecule, sorbitol. In this study, the full-length cDNA of the(More)
As-NUPR1, a stress-related protein, plays an important role in post-diapause during embryonic development in the brine shrimp Artemia sinica. In the present study, successful expression of As-NUPR1 from the cDNA sequence isolated from A. sinica was demonstrated using a prokaryotic expression system. The recombinant protein consisted of 132 amino acids with(More)
Ubiquitylation is an important protein post-translational regulation pathway, which is involved in controlling protein degradation, tumor occurrence and cell cycle regulation. E3 ubiquitin protein ligase (UBPL) plays a crucial role of the conjugation of activated ubiquitin to protein substrates and leads to targeting proteins for degradation by the(More)
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