ArticleThe Biochemical journal2000
Identification of domains responsible for signal recognition and transduction within the QUTR transcription repressor protein.
Article in The Biochemical journal, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 10 citations in OpenAlex.
- An examination of the quinic acid utilization genes in Aspergillus niger reveals the involvement of 2 pH-dependent permeases.G3 (Bethesda, Md.) · 2025Article
- Architecture and functional dynamics of the pentafunctional AROM complex.Nature chemical biology · 2020Article
- Modulating Transcriptional Regulation of Plant Biomass Degrading Enzyme Networks for Rational Design of Industrial Fungal Strains.Frontiers in bioengineering and biotechnology · 2018Review
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
QUTR (qutR-encoded transcription-repressing protein) is a multi-domain repressor protein active in the signal-transduction pathway that regulates transcription of the quinic acid utilization (qut) gene cluster in Aspergillus nidulans. In the presence of quinate, production of mRNA from the eight genes of the qut pathway is stimulated by the activator protein QUTA (qutA-encoded transcription-activating protein). Mutations in the qutR gene alter QUTR function such that the transcription of the qut gene cluster is permanently on (constitutive phenotype) or is insensitive to the presence of quinate (super-repressed phenotype). These mutant phenotypes imply that the QUTR protein plays a key role in signal recognition and transduction, and we have used deletion analysis to determine which regions of the QUTR protein are involved in these functions. We show that the QUTR protein recognizes and binds to the QUTA protein in vitro and that the N-terminal 88 amino acids of QUTR are sufficient to inactivate QUTA function in vivo. Deletion analysis and domain-swap experiments imply that the two C-terminal domains of QUTR are mainly involved in signal recognition.
Indexed as
Identifiers
10926843PMC1221241W2121841119What OpenQuestion holds
Registered trials
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