D-Index & Metrics Best Publications

D-Index & Metrics

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Genetics and Molecular Biology D-index 67 Citations 17,519 141 World Ranking 1697 National Ranking 865

Research.com Recognitions

Awards & Achievements

2013 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Enzyme
  • DNA

John D. Helmann mostly deals with Biochemistry, Bacillus subtilis, Repressor, Genetics and Operon. His Bacillus subtilis research includes themes of Catalase, ATP-binding cassette transporter, Regulon, Cell envelope and Gene. The various areas that John D. Helmann examines in his Repressor study include Metalloprotein, Metal, Zinc, Heme and Binding site.

His Sigma factor, RNA polymerase, Transcription, Consensus sequence and DNA investigations are all subjects of Genetics research. His studies in Sigma factor integrate themes in fields like Anti-sigma factors, RNA polymerase II holoenzyme and Cell biology. His Operon research is multidisciplinary, incorporating perspectives in Gene expression profiling, Microbiology, Promoter, Molecular biology and Small RNA.

His most cited work include:

  • STRUCTURE AND FUNCTION OF BACTERIAL SIGMA FACTORS (775 citations)
  • The extracytoplasmic function (ECF) sigma factors. (590 citations)
  • Stimulus Perception in Bacterial Signal-Transducing Histidine Kinases (515 citations)

What are the main themes of his work throughout his whole career to date?

His primary scientific interests are in Bacillus subtilis, Biochemistry, Sigma factor, Gene and Regulon. His Bacillus subtilis study integrates concerns from other disciplines, such as Operon, Transcription, Mutant, Repressor and Cell biology. His research integrates issues of Bacillibactin and Siderophore in his study of Operon.

His studies examine the connections between Repressor and genetics, as well as such issues in Binding site, with regards to Stereochemistry. His Sigma factor research incorporates themes from Molecular biology and Anti-sigma factors. His Regulon research includes elements of Psychological repression and Catalase.

He most often published in these fields:

  • Bacillus subtilis (64.06%)
  • Biochemistry (55.86%)
  • Sigma factor (27.73%)

What were the highlights of his more recent work (between 2014-2021)?

  • Bacillus subtilis (64.06%)
  • Cell biology (17.19%)
  • Biochemistry (55.86%)

In recent papers he was focusing on the following fields of study:

John D. Helmann spends much of his time researching Bacillus subtilis, Cell biology, Biochemistry, Regulon and Repressor. He has researched Bacillus subtilis in several fields, including Derepression, Zinc, Peptidoglycan, Operon and Membrane protein. His Cell biology research incorporates elements of Transcription, Transcription factor, Gene, Cell envelope and Sigma factor.

His work in Transcription tackles topics such as DNA which are related to areas like Plasma protein binding. His Regulon research is multidisciplinary, incorporating elements of Ferric and Secretion. His Repressor research integrates issues from Psychological repression, Binding site and Riboswitch.

Between 2014 and 2021, his most popular works were:

  • Metal homeostasis and resistance in bacteria (217 citations)
  • Bacillus subtilis extracytoplasmic function (ECF) sigma factors and defense of the cell envelope. (80 citations)
  • Antagonism of Two Plant-Growth Promoting Bacillus velezensis Isolates Against Ralstonia solanacearum and Fusarium oxysporum (73 citations)

In his most recent research, the most cited papers focused on:

  • Enzyme
  • Gene
  • DNA

His primary areas of investigation include Biochemistry, Bacillus subtilis, Efflux, Repressor and Regulon. His research in Biochemistry is mostly focused on Teichoic acid. John D. Helmann interconnects Derepression, Peptidoglycan, Lipid II, Microbiology and Virulence in the investigation of issues within Bacillus subtilis.

The study incorporates disciplines such as Ferrous, ATPase, Mutant and Bacteria in addition to Efflux. The Regulon study combines topics in areas such as Ferric, Cell envelope, Cell division and Bacterial cell structure. His research in Cell envelope focuses on subjects like Cell biology, which are connected to Cell wall, Sigma factor, Gene, Cell cycle and Regulation of gene expression.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

STRUCTURE AND FUNCTION OF BACTERIAL SIGMA FACTORS

John D. Helmann;Michael J. Chamberlin.
Annual Review of Biochemistry (1988)

1256 Citations

The extracytoplasmic function (ECF) sigma factors.

John D Helmann.
Advances in Microbial Physiology (2002)

817 Citations

Stimulus Perception in Bacterial Signal-Transducing Histidine Kinases

Thorsten Mascher;John D. Helmann;Gottfried Unden.
Microbiology and Molecular Biology Reviews (2006)

730 Citations

The σ70 family of sigma factors

Mark S B Paget;John D Helmann.
Genome Biology (2003)

601 Citations

The PerR transcription factor senses H2O2 by metal-catalysed histidine oxidation.

Jin-Won Lee;John D. Helmann.
Nature (2006)

554 Citations

Compilation and analysis of Bacillus subtilis sigma A-dependent promoter sequences: evidence for extended contact between RNA polymerase and upstream promoter DNA.

John D. Helmann.
Nucleic Acids Research (1995)

510 Citations

Functional specialization within the Fur family of metalloregulators.

Jin-Won Lee;John D. Helmann.
Biometals (2007)

470 Citations

Bacillus subtilis contains multiple Fur homologues: identification of the iron uptake (Fur) and peroxide regulon (PerR) repressors

Nada Bsat;Andrew Herbig;Lilliam Casillas‐Martinez;Peter Setlow.
Molecular Microbiology (1998)

430 Citations

Thiol-Based Redox Switches and Gene Regulation

Haike Antelmann;John D. Helmann.
Antioxidants & Redox Signaling (2011)

350 Citations

Recognition of DNA by Fur: a Reinterpretation of the Fur Box Consensus Sequence

Noel Baichoo;John D. Helmann.
Journal of Bacteriology (2002)

346 Citations

Editorial Boards

Molecular Microbiology
(Impact Factor: 3.979)

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