Discover Community Create You

Loading publication...

Noodle always counts identifier-free feature events for service operation. With your permission, Google Analytics can also estimate audience and engagement. Search text, publication identifiers, cookies, IP addresses and browser fingerprints are never included in Noodle's first-party event counters.

Privacy details

Article

Symbiotic nitrogen fixation by a nifA deletion mutant of Rhizobium meliloti: the role of an unusual ntrC allele.

Journal of bacteriology - 1 May 1993

Labes M, Rastogi V, Watson R, Finan T M

Abstract excerpt

In the N2-fixing alfalfa symbiont Rhizobium meliloti, the three sigma 54 (NTRA)-dependent positively acting regulatory proteins NIFA, NTRC, and DCTD are required for activation of promoters involved in N2 fixation (pnifHDKE and pfixABCX), nitrogen assimilation (pglnII), and C4-dicarboxylate transport (pdctA), respectively. Here, we describe an allele of ntrC which results in the constitutive activation of the...

Read the complete abstract on PubMed

Topics

Share this publication in a Topic to start or enrich a Post.

Share to Alleles
Share to Amino Acid Sequence
Share to Bacterial Proteins

Methodology Data sources Editorial policy Privacy Delete account & data About Contact Helena Bioinformatics

Share to Base Sequence

Share to Carrier Proteins

Share to DNA-Binding Proteins

Share to Molecular Sequence Data

Share to Promoter Regions, Genetic

Source

Open in PubMed Open full text

Identifiers

PMID: 8478331
DOI: 10.1128/jb.175.9.2662-2673.1993
PMCID: PMC204569

Genes

DCTD

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

Related research

Semantic proximity does not establish scientific evidence. Graph snapshot: 2026-09-29.

Research trail→

Click a neighbor to travelStep 1 · 12 closest

Symbiotic nitrogen fixation by a nifA deletion mutant of Rhizobium meliloti: the role of an unusual ntrC allele.PMID 8478331Read ↗

Repressor mutant forms of the Azospirillum brasilense NtrC protein.Semantic proximity Read ↗

Negative regulation of sigma 54-dependent dctA expression by the transcriptional activator DctD.Semantic proximity Read ↗

Effect of an ntrC mutation on amino acid or urea utilization and on nitrogenase switch-off in Herbaspirillum seropedicae.Semantic proximity Read ↗

Azorhizobium caulinodans nitrogen fixation (nif/fix) gene regulation: mutagenesis of the nifA -24/-12 promoter element, characterization of a ntrA(rpoN) gene, and derivation of a model.Semantic proximity Read ↗

The NtrY-NtrX two-component system is involved in controlling nitrate assimilation in Herbaspirillum seropedicae strain SmR1.Semantic proximity Read ↗

Mutation in the ntrR gene, a member of the vap gene family, increases the symbiotic efficiency of Sinorhizobium meliloti.Semantic proximity Read ↗

The expression of nifA in Azorhizobium caulinodans requires a gene product homologous to Escherichia coli HF-I, an RNA-binding protein involved in the replication of phage Q beta RNA.Semantic proximity Read ↗

Mutation in ntrC gene leading to the derepression of nitrogenase synthesis in Rhodobacter sphaeroides.Semantic proximity Read ↗

The transcriptional activator NtrC controls the expression and activity of glutamine synthetase in Herbaspirillum seropedicae.Semantic proximity Read ↗

Characterization of the ntrBC genes of Azospirillum brasilense Sp7: their involvement in the regulation of nitrogenase synthesis and activity.Semantic proximity Read ↗

A mutant GlnD nitrogen sensor protein leads to a nitrogen-fixing but ineffective Sinorhizobium meliloti symbiosis with alfalfa.Semantic proximity Read ↗

Anabaena sp. strain PCC 7120 ntcA gene required for growth on nitrate and heterocyst development.Semantic proximity Read ↗

⌁Select a neighboring publication to make it the new centre.