ArticleApplied and environmental microbiology2000
xylP promoter-based expression system and its use for antisense downregulation of the Penicillium chrysogenum nitrogen regulator NRE.
Article in Applied and environmental microbiology, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
68 citing papers in PubMed, 131 citations in OpenAlex.
- Lanosterol synthase inhibition as a potential approach for re-sensitizing triazole-resistantmBio · 2026Article
- Siderophore production by the lichen fungus Xanthoria parietina supports its algal symbiont.Nature communications · 2026Article
- Systematic over-expression of secondary metabolism transcription factors to reveal the pharmaceutical potential of Aspergillus nidulans.Communications biology · 2025Article
- Article
- Fungal Innovations-Advancing Sustainable Materials, Genetics, and Applications for Industry.Journal of fungi (Basel, Switzerland) · 2025Review
- Functional transitions of the Aspergillus fumigatus iron regulator HapX are governed by conserved domains cooperatively binding [2Fe-2S] clusters.Nucleic acids research · 2025Article
- Simultaneous multigene integration in Aspergillus fumigatus using CRISPR/Cas9 and endogenous counter-selectable markers.Journal of biological engineering · 2025Article
- Colistin enhances caspofungin antifungal efficacy against Aspergillus fumigatus by modulating calcium homeostasis and stress responses.Nature communications · 2025Article
- FpnA, the Aspergillus fumigatus homolog of human ferroportin, mediates resistance to nickel, cobalt and gallium but does not function in iron homeostasis.Communications biology · 2025Article
- tRNA hypomodification facilitates 5-fluorocytosine resistance via cross-pathway control system activation in Aspergillus fumigatus.Nucleic acids research · 2025Article
- Article
- The cytosolic form of dual localized BolA family protein Bol3 is important for adaptation to iron starvation inOpen biology · 2024Article
- The forced activation of asexual conidiation inSynthetic and systems biotechnology · 2024Article
- Strategies for the Development of Industrial Fungal Producing Strains.Journal of fungi (Basel, Switzerland) · 2023Review
- Article
- The Siderophore Ferricrocin Mediates Iron Acquisition in Aspergillus fumigatus.Microbiology spectrum · 2023Article
- The Heat Shock Transcription Factor HsfA Plays a Role in Membrane Lipids Biosynthesis Connecting Thermotolerance and Unsaturated Fatty Acid Metabolism in Aspergillus fumigatus.Microbiology spectrum · 2023Article
- Modular Inducible Multigene Expression System for Filamentous Fungi.Microbiology spectrum · 2022Article
- Characterization and engineering of the xylose-inducibleMetabolic engineering communications · 2022Article
- Article
8 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A highly inducible fungal promoter derived from the Penicillium chrysogenum endoxylanase (xylP) gene is described. Northern analysis and the use of a beta-glucuronidase (uidA) reporter gene strategy showed that xylP expression is transcriptionally regulated. Xylan and xylose are efficient inducers, whereas glucose strongly represses the promoter activity. Comparison of the same expression construct as a single copy at the niaD locus in P. chrysogenum and at the argB locus in Aspergillus nidulans demonstrated that the xylP promoter is regulated similarly in these two species but that the level of expression is about 80 times higher in the Aspergillus species. The xylP promoter was found to be 65-fold more efficient than the isopenicillin-N-synthetase (pcbC) promoter in Penicillium and 23-fold more efficient than the nitrate reductase (niaD) promoter in Aspergillus under induced conditions. Furthermore, the xylP promoter was used for controllable antisense RNA synthesis of the nre-encoded putative major nitrogen regulator of P. chrysogenum. This approach led to inducible downregulation of the steady-state mRNA level of nre and consequently to transcriptional repression of the genes responsible for nitrate assimilation. In addition, transcription of nreB, which encodes a negative-acting nitrogen regulatory GATA factor of Penicillium, was found to be subject to regulation by NRE. Our data are the first direct evidence that nre indeed encodes an activator in the nitrogen regulatory circuit in Penicillium and indicate that cross regulation of the controlling factors occurs.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.