World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
75
Citations
15461
World Ranking
5439
National Ranking
2580

Research.com Recognitions

  • 2007 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 1986 - ASM Carski Award, American Society for Microbiology

Overview

What is he best known for?

The fields of study he is best known for:

  • Gene
  • Enzyme
  • DNA

Samuel Kaplan mostly deals with Rhodobacter sphaeroides, Biochemistry, Operon, Mutant and Gene expression. His Rhodobacter sphaeroides study combines topics in areas such as Molecular biology, Gene product and Gene. His Molecular biology research focuses on Regulatory sequence and how it relates to Consensus sequence.

His work in the fields of Cell membrane, Bacteriochlorophyll and Structural gene overlaps with other areas such as Photosynthetic membrane. His Operon study typically links adjacent topics like Mutation. While the research belongs to areas of Gene expression, Samuel Kaplan spends his time largely on the problem of Response regulator, intersecting his research to questions surrounding Histidine kinase and lac operon.

His most cited work include:

  • prrA, a putative response regulator involved in oxygen regulation of photosynthesis gene expression in Rhodobacter sphaeroides. (218 citations)
  • A quorum-sensing system in the free-living photosynthetic bacterium Rhodobacter sphaeroides. (189 citations)
  • Molecular genetics of photosynthetic membrane biosynthesis in Rhodobacter sphaeroides. (177 citations)

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

Samuel Kaplan spends much of his time researching Rhodobacter sphaeroides, Biochemistry, Gene, Operon and Molecular biology. His Rhodobacter sphaeroides research includes themes of Histidine kinase, Mutant and Gene expression. His Mutant study which covers Mutation that intersects with Cytochrome.

His work in Gene addresses subjects such as DNA, which are connected to disciplines such as Binding site. Samuel Kaplan combines subjects such as Gene cluster, Gene product, Repressor and lac operon with his study of Operon. His study in Molecular biology is interdisciplinary in nature, drawing from both Nucleic acid sequence, Plasmid, Transcription, Regulatory sequence and Structural gene.

He most often published in these fields:

  • Rhodobacter sphaeroides (79.65%)
  • Biochemistry (59.29%)
  • Gene (33.63%)

What were the highlights of his more recent work (between 2004-2013)?

  • Rhodobacter sphaeroides (79.65%)
  • Biochemistry (59.29%)
  • Gene (33.63%)

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

His primary scientific interests are in Rhodobacter sphaeroides, Biochemistry, Gene, Proteome and Transcriptome. His Rhodobacter sphaeroides research integrates issues from Periplasmic space and Mutant. His biological study focuses on Heme.

His Gene study integrates concerns from other disciplines, such as DNA and Binding site. His biological study spans a wide range of topics, including Integral membrane protein, Molecular biology, Membrane transport and Plasmid. His work carried out in the field of Transcriptome brings together such families of science as Transcriptional regulation, Microbiology, Bacteria and ORFS, Open reading frame.

Between 2004 and 2013, his most popular works were:

  • Comparative genomics and site-directed mutagenesis support the existence of only one input channel for protons in the C-family (cbb3 oxidase) of heme-copper oxygen reductases. (65 citations)
  • Genome Analyses of Three Strains of Rhodobacter sphaeroides: Evidence of Rapid Evolution of Chromosome II (63 citations)
  • Transcriptome Dynamics during the Transition from Anaerobic Photosynthesis to Aerobic Respiration in Rhodobacter sphaeroides 2.4.1 (53 citations)

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

  • Gene
  • Enzyme
  • DNA

Samuel Kaplan mainly investigates Rhodobacter sphaeroides, Biochemistry, Heme, Gene and Metabolism. His Rhodobacter sphaeroides research is multidisciplinary, incorporating elements of Reductase, Repressor and DNA sequencing. Samuel Kaplan interconnects Amino acid, Paracoccus denitrificans, Aerobic bacteria and Site-directed mutagenesis in the investigation of issues within Reductase.

His research in Repressor intersects with topics in Biophysics and Cofactor. His DNA sequencing study incorporates themes from Chromosome, Genome, Gene rearrangement and Conserved sequence. His Metabolism research incorporates themes from Rhodospirillaceae, Photosynthesis, Transcriptome and Cellular respiration.

Best Publications

  • prrA, a putative response regulator involved in oxygen regulation of photosynthesis gene expression in Rhodobacter sphaeroides.

    Jesus M. Eraso;S. Kaplan

  • Molecular genetics of photosynthetic membrane biosynthesis in Rhodobacter sphaeroides.

    P J Kiley;S Kaplan

  • A quorum-sensing system in the free-living photosynthetic bacterium Rhodobacter sphaeroides.

    Agnes Puskas;E. P. Greenberg;Samuel Kaplan;Amy L. Schaefer

  • Identification of intrinsic high-level resistance to rare-earth oxides and oxyanions in members of the class Proteobacteria: characterization of tellurite, selenite, and rhodium sesquioxide reduction in Rhodobacter sphaeroides.

    M D Moore;S Kaplan

  • Entrapment of a bacterial plasmid in phospholipid vesicles: potential for gene transfer.

    Robert T. Fraley;Chester S. Fornari;Samuel Kaplan

  • Intracytoplasmic membrane synthesis in synchronous cell populations of Rhodopseudomonas sphaeroides. Fate of "old" and "new" membrane.

    D R Lueking;R T Fraley;S Kaplan

  • Redox signaling: globalization of gene expression.

    Jeong‐Il Oh;Samuel Kaplan

  • Aerobic and anaerobic regulation in Rhodobacter sphaeroides 2.4.1: the role of the fnrL gene.

    J H Zeilstra-Ryalls;S Kaplan

  • Oxygen-insensitive synthesis of the photosynthetic membranes of Rhodobacter sphaeroides: a mutant histidine kinase.

    Jesus M. Eraso;S. Kaplan

  • Cloning, DNA sequence, and expression of the Rhodobacter sphaeroides cytochrome c2 gene.

    T J Donohue;A G McEwan;S Kaplan

  • The home stretch, a first analysis of the nearly completed genome of Rhodobacter sphaeroides 2.4.1

    C Mackenzie;M Choudhary;F W Larimer;P F Predki

  • A mammalian mitochondrial drug receptor functions as a bacterial “oxygen” sensor

    Alexei A. Yeliseev;Karl E. Krueger;Samuel Kaplan

  • A sensory transducer homologous to the mammalian peripheral-type benzodiazepine receptor regulates photosynthetic membrane complex formation in Rhodobacter sphaeroides 2.4.1.

    Alexei A. Yeliseev;Samuel Kaplan

  • AppA, a Redox Regulator of Photosystem Formation in Rhodobacter sphaeroides 2.4.1, Is a Flavoprotein IDENTIFICATION OF A NOVEL FAD BINDING DOMAIN

    Mark Gomelsky;Samuel Kaplan

  • Expression of the Rhodobacter sphaeroides hemA and hemT genes, encoding two 5-aminolevulinic acid synthase isozymes.

    E L Neidle;S Kaplan

  • Control of Photosystem Formation in Rhodobacter sphaeroides

    Jill Zeilstra-Ryalls;Mark Gomelsky;Jesus M. Eraso;Alexei Yeliseev

  • cis-acting regulatory elements involved in oxygen and light control of puc operon transcription in Rhodobacter sphaeroides.

    J K Lee;S Kaplan

  • Induction of the photosynthetic membranes of Rhodopseudomonas sphaeroides: biochemical and morphological studies.

    J Chory;T J Donohue;A R Varga;L A Staehelin

  • Phenotypic and genetic characterization of cytochrome c2 deficient mutants of Rhodobacter sphaeroides.

    Timothy J. Donohue;Alastair G. McEwan;Steven Van Doren;Antony R. Crofts

  • Molecular genetic analysis suggesting interactions between AppA and PpsR in regulation of photosynthesis gene expression in Rhodobacter sphaeroides 2.4.1.

    M Gomelsky;S Kaplan

Frequent Co-Authors

Timothy J. Donohue
Timothy J. Donohue University of Wisconsin–Madison
Mark Gomelsky
Mark Gomelsky University of Wyoming
Mary S. Lipton
Mary S. Lipton Pacific Northwest National Laboratory
Alastair G. McEwan
Alastair G. McEwan University of Queensland
Patricia J. Kiley
Patricia J. Kiley University of Wisconsin–Madison
George M. Weinstock
George M. Weinstock The Jackson Laboratory
James P. O'Gara
James P. O'Gara University of Galway
Ellen L. Neidle
Ellen L. Neidle University of Georgia
Joanne Chory
Joanne Chory Salk Institute for Biological Studies
Erica Sodergren
Erica Sodergren The Jackson Laboratory

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