ArticleCurrent microbiology2025
Heterochromatin Protein Activates the Amylase Expression Pathway and Its Application to Recombinant Protein Expression in Penicillium oxalicum.
Article in Current microbiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Hybrid genome assembly of Penicillium oxalicum UV4 delineates cryptic secondary metabolite pathways and robust lignocellulolytic potential.Archives of microbiology · 2026Article
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Authors and funding
8 authors.
Funding
Abstract
Remodelling regulatory pathways to directionally increase the efficiency of specific promoters in chassis cells is an effective strategy for the rational construction of expression systems. However, the repeated utilization of one regulator to modify the host cell to improve expression motif efficiency has a limited effect. Therefore, it is preferable to identify new regulatory factors to activate specific pathways and thus further improve the efficiency of target elements. Heterochromatin protein 1 (HP1) is considered a main factor responsible for heterochromatin maintenance; it binds DNA and thus forms a tight structure to repress gene expression in fungi. This study revealed that the overexpression of HepA (a homologue of HP1) increased amylase expression in Penicillium oxalicum. Furthermore, HepA was overexpressed in two engineered strains in which the endoglucanase TaEG and amylase Amy15B were recombinantly expressed under the control of the amylase promoter Pamy15A, resulting in increased production of these two enzymes. Therefore, HepA could be used as a novel facilitator to modify Penicillium chassis cells, in which the efficiency of expression motifs located in the amylase pathway can be further strengthened.
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