World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
82
Citations
21247
World Ranking
3741
National Ranking
1854

Research.com Recognitions

  • 1977 - Member of the National Academy of Sciences
  • 1973 - Fellow of the American Academy of Arts and Sciences

Overview

What is he best known for?

The fields of study he is best known for:

  • DNA
  • Gene
  • Enzyme

I. R. Lehman spends much of his time researching Biochemistry, DNA, Escherichia coli, Polynucleotide and Deoxyribonucleases. Biochemistry and DNA clamp are frequently intertwined in his study. I. R. Lehman has researched DNA in several fields, including Enzymatic synthesis and Deoxyadenine Nucleotides.

His Escherichia coli research incorporates themes from Klenow fragment, Exonuclease and Phosphatase. As a part of the same scientific study, he usually deals with the Polynucleotide, concentrating on Deoxyribonuclease and frequently concerns with Deoxyribonucleic acid polymerase and Nucleotidases. His Deoxyribonucleases research integrates issues from RNA and Phosphodiesterase.

His most cited work include:

  • Enzymatic synthesis of deoxyribonucleic acid. XXXII. Replication of duplex deoxyribonucleic acid by polymerase at a single strand break. (334 citations)
  • The deoxyribonucleases of Escherichia coli. I. Purification and properties of a phosphodiesterase. (306 citations)
  • A DEOXYRIBONUCLEIC ACID PHOSPHATASE-EXONUCLEASE FROM ESCHERICHIA COLI. II. CHARACTERIZATION OF THE EXONUCLEASE ACTIVITY. (305 citations)

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

I. R. Lehman mainly focuses on Biochemistry, Molecular biology, DNA, Escherichia coli and DNA polymerase. His study in Enzyme, Polynucleotide, Nucleotide, DNA ligase and Endonuclease falls within the category of Biochemistry. His Molecular biology study integrates concerns from other disciplines, such as Okazaki fragments, ICP8, DNA polymerase II, Primase and DNA replication.

The DNA polymerase II study combines topics in areas such as Klenow fragment, DNA clamp and Circular bacterial chromosome. I. R. Lehman combines subjects such as Enzymatic synthesis, Phosphodiester bond, Recombinant DNA and Deoxyadenine Nucleotides with his study of DNA. His Escherichia coli research is multidisciplinary, relying on both Deoxyribonucleases, Mutant and Cofactor.

He most often published in these fields:

  • Biochemistry (63.44%)
  • Molecular biology (56.99%)
  • DNA (48.39%)

What were the highlights of his more recent work (between 1986-2016)?

  • Molecular biology (56.99%)
  • Primase (17.20%)
  • DNA (48.39%)

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

The scientist’s investigation covers issues in Molecular biology, Primase, DNA, Herpes simplex virus and ICP8. I. R. Lehman has included themes like Binding protein, DNA polymerase II, DNA polymerase, Single-stranded binding protein and DNA replication in his Molecular biology study. His Primase study combines topics in areas such as Primosome and Helicase.

His DNA research entails a greater understanding of Biochemistry. His work on Enzyme, Nucleotide, Protein subunit and DNA helicase activity is typically connected to ATP hydrolysis as part of general Biochemistry study, connecting several disciplines of science. His research investigates the link between Herpes simplex virus and topics such as Viral replication that cross with problems in Origin of replication.

Between 1986 and 2016, his most popular works were:

  • Herpes simplex virus DNA replication. (293 citations)
  • Herpes simplex virus 1 helicase-primase: a complex of three herpes-encoded gene products (182 citations)
  • DNA polymerase alpha (120 citations)

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

  • DNA
  • Gene
  • Enzyme

I. R. Lehman focuses on Molecular biology, Single-stranded binding protein, DNA replication, DNA polymerase and Herpes simplex virus. His Molecular biology research incorporates elements of ICP8, Primase and Binding site. His DNA replication study incorporates themes from DNA polymerase II and Cell biology.

I. R. Lehman focuses mostly in the field of Herpes simplex virus, narrowing it down to topics relating to DNA and, in certain cases, Recombinant DNA, Virus and Gene. His Binding protein research is classified as research in Biochemistry. His Biochemistry study frequently links to other fields, such as Single-strand DNA-binding protein.

Best Publications

  • Enzymatic Synthesis of Deoxyribonucleic Acid I. PREPARATION OF SUBSTRATES AND PARTIAL PURIFICATION OF AN ENZYME FROM ESCHERICHIA COLI

    I. R. Lehman;Maurice J. Bessman;Ernest S. Simms;Arthur Kornberg

  • Enzymatic synthesis of deoxyribonucleic acid. XXXII. Replication of duplex deoxyribonucleic acid by polymerase at a single strand break.

    Regis B. Kelly;Nicholas R. Cozzarelli;Murray P. Deutscher;I. R. Lehman

  • A DEOXYRIBONUCLEIC ACID PHOSPHATASE-EXONUCLEASE FROM ESCHERICHIA COLI. II. CHARACTERIZATION OF THE EXONUCLEASE ACTIVITY.

    Charles C. Richardson;I. R. Lehman;Arthur Kornberg

  • THE DEOXYRIBONUCLEASES OF ESCHERICHIA COLI. V. ON THE SPECIFICITY OF EXONUCLEASE I (PHOSPHODIESTERASE).

    I. R. Lehman;A. L. Nussbaum

  • The deoxyribonucleases of Escherichia coli. I. Purification and properties of a phosphodiesterase.

    Lehman Ir

  • Enzymatic synthesis of deoxyribonucleic acid. VII. Synthesis of a polymer of deoxyadenylate and deoxythymidylate

    H. K. Schachman;H. K. Schachman;H. K. Schachman;Julius Adler;Julius Adler;Julius Adler;Charles M. Radding;Charles M. Radding;Charles M. Radding;I. R. Lehman;I. R. Lehman;I. R. Lehman

  • Herpes simplex virus DNA replication.

    Paul E. Boehmer;I. R. Lehman

  • Initiation of general recombination catalyzed in vitro by the recA protein of Escherichia coli.

    K McEntee;G M Weinstock;I R Lehman

  • ATP-dependent renaturation of DNA catalyzed by the recA protein of Escherichia coli

    G M Weinstock;K McEntee;I R Lehman

  • Binding of the recA protein of Escherichia coli to single- and double-stranded DNA

    K McEntee;G M Weinstock;I R Lehman

  • Transient accumulation of Okazaki fragments as a result of uracil incorporation into nascent DNA

    Bik-Kwoon Tye;Per-Olof Nyman;I. R. Lehman;Steven Hochhauser

  • Enzymatic synthesis of deoxyribonucleic acid. II. General properties of the reaction.

    Maurice J. Bessman;I. R. Lehman;Ernest S. Simms;Arthur Kornberg

  • The deoxyribonucleases of Escherichia coli. II. Purification and properties of a ribonucleic acid-inhibitable endonuclease.

    Lehman Ir;Roussos Gg;Pratt Ea

  • recA protein-catalyzed strand assimilation: stimulation by Escherichia coli single-stranded DNA-binding protein.

    Kevin McEntee;George M. Weinstock;I. R. Lehman

  • Herpes simplex virus 1 helicase-primase: a complex of three herpes-encoded gene products

    James J. Crute;Tatsuya Tsurumi;Liang Zhu;Sandra K. Weller

  • On the structure of the glucosylated hydroxymethylcytosine nucleotides of coliphages T2, T4, and T6.

    I.R. Lehman;E.A. Pratt

  • THE DEOXYRIBONUCLEASES OF ESCHERICHIA COLI. IV. AN EXONUCLEASE ACTIVITY PRESENT IN PURIFIED PREPARATIONS OF DEOXYRIBONUCLEIC ACID POLYMERASE.

    I.R. Lehman;Charles C. Richardson

  • Branched DNA molecules: intermediates in T4 recombination.

    Thomas R. Broker;I.R. Lehman

  • Replication of Herpes Simplex Virus DNA

    I. R. Lehman;Paul E. Boehmer

  • Linkage of polynucleotides through phosphodiester bonds by an enzyme from Escherichia coli.

    Baldomero M. Olivera;I. R. Lehman

Frequent Co-Authors

Arthur Kornberg
Arthur Kornberg Stanford University
Paul Modrich
Paul Modrich Duke University
Bik Kwoon Tye
Bik Kwoon Tye Cornell University
Baldomero M. Olivera
Baldomero M. Olivera University of Utah
Edward S. Mocarski
Edward S. Mocarski Emory University
Zach W. Hall
Zach W. Hall University of California, San Francisco
Howard K. Schachman
Howard K. Schachman University of California, Berkeley
Charles C. Richardson
Charles C. Richardson Harvard University
Julius Adler
Julius Adler University of Wisconsin–Madison
Laurie S. Kaguni
Laurie S. Kaguni Michigan State University

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