James B. Howard

10.8k citations

89 papers · 8.5k indexed · 4 hit papers · h-index 46

Impact in

Renewable Energy, Sustainability and the Environment top 0.2%
- Metalloenzymes and iron-sulfur proteins
- Electrocatalysts for Energy Conversion
Catalysis top 0.5%
- Ammonia Synthesis and Nitrogen Reduction

Papers in

Renewable Energy, Sustainability and the Environment 44
- Metalloenzymes and iron-sulfur proteins 44
- Electrocatalysts for Energy Conversion 12
Catalysis 11
- Ammonia Synthesis and Nitrogen Reduction 10

Co-authors: Douglas C. Rees Oliver Einsle F. Akif Tezcan R P Swenson Susana L. A. Andrade Gary L. Nelsestuen Brian G. Van Ness James W. Bodley
Journals: Journal of Biological Chemistry (37 papers)Biochemistry (10 papers)Proceedings of the National Academy of Sciences (6 papers)Science (5 papers)Biochemical and Biophysical Research Communications (3 papers)
Partner nations: United States Germany France

In The Last Decade

James B. Howard

88 papers receiving 8.1k citations

Hit Papers

align trajectories log scale

Structural basis of biological nitrogen fixation 2005 · 673 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2005 Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences
2002 Science
1996 Chemical Reviews
1974 Journal of Biological Chemistry

Peers

Countries citing papers authored by James B. Howard

Since Specialization

Citations

This map shows the geographic impact of James B. Howard's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by James B. Howard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James B. Howard more than expected).

Fields of papers citing papers by James B. Howard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by James B. Howard. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by James B. Howard. The network helps show where James B. Howard may publish in the future.

Co-authors

The 25 scholars most cited alongside James B. Howard, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with James B. Howard Line = papers co-authored together James B. Howard links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	Structural consequences of turnover-induced homocitrate loss in nitrogenase Nature Communications ·Oniria Gillenwaters, Ailiena O. Maggiolo, Cesla Uw, 冯俊科, James B. Howard, Douglas C. Rees	2023	16
2	Site-specific antibody-drug conjugate heterogeneity characterization and heterogeneity root cause analysis mAbs ·Mingyan Cao, N. Law, Darline Ebereyo, James B. Howard, Werlon Marques Souza, Sarah G. Marmor, Christopher Thompson, Michaela Wendeler, Dengfeng Liu	2019	40
3	Ligand binding to the FeMo-cofactor: Structures of CO-bound and reactivated nitrogenase Science ·Thomas Spatzal, Kathryn Perez, Oliver Einsle, James B. Howard, Douglas C. Rees	2014	343
4	The Sixteenth Iron in the Nitrogenase MoFe Protein Angewandte Chemie International Edition ·Limei Zhang, Jens T. Kaiser, Gabriele Meloni, Е.В. Гапанович-Кадайлова, Thomas Spatzal, Susana L. A. Andrade, Oliver Einsle, James B. Howard, Douglas C. Rees	2013	31
5	Multiple Amino Acid Sequence Alignment Nitrogenase Component 1: Insights into Phylogenetics and Structure-Function Relationships PLoS ONE ·James B. Howard, Katerina Kechris, Douglas C. Rees, Alexander N. Glazer	2013	22
6	The Sixteenth Iron in the Nitrogenase MoFe Protein Angewandte Chemie ·Limei Zhang, Jens T. Kaiser, Gabriele Meloni, Е.В. Гапанович-Кадайлова, Thomas Spatzal, Susana L. A. Andrade, Oliver Einsle, James B. Howard, Douglas C. Rees	2013	5
7	Structural basis of biological nitrogen fixation Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences ·Douglas C. Rees, F. Akif Tezcan, Chad Haynes, Jialin Ye, Susana L. A. Andrade, Oliver Einsle, James B. Howard Hit paper breakdown →	2005	673
8	Nitrogenase: standing at the crossroads Current Opinion in Chemical Biology ·Douglas C. Rees, James B. Howard	2000	199
9	Structural bioenergetics and energy transduction mechanisms Journal of Molecular Biology ·Douglas C. Rees, James B. Howard	1999	41
10	Conformational variability in structures of the nitrogenase iron proteins from Azotobacter vinelandii and Clostridium pasteurianum Journal of Molecular Biology ·J.L. Schlessman, Sh Sh Akhmetzyanov, Leemor Joshua‐Tor, James B. Howard, Douglas C. Rees	1998	118
11	Nitrogenase iron-molybdenum cofactor binding site: Protein conformational changes associated with cofactor binding Tetrahedron ·Jon Magnuson, 茂樹舟沢, Vinod K. Shah, Dennis R. Dean, Gary P. Roberts, Douglas C. Rees, James B. Howard	1997	8
12	Participation of the disulfide bridge in the redox cycle of the ferredoxin from the hyperthermophile Pyrococcus furiosus: 1H nuclear magnetic resonance time resolution of the four redox states at ambient temperature Biochemistry ·Carol M. Gorst, Zhi Hao Zhou, Kesen Ma, Quincy Teng, James B. Howard, Michael W. W. Adams, Gerd N. La Mar	1995	23
13	NITROGENASE: A Nucleotide-Dependent Molecular Switch Annual Review of Biochemistry ·James B. Howard, Douglas C. Rees	1994	169
14	Solution 1H NMR Determination of Secondary Structure for the Three-Iron Form of Ferredoxin from the Hyperthermophilic Archaeon Pyrococcus furiosus Biochemistry ·Quincy Teng, Zhi‐Hua Zhou, Eugene T. Smith, Scott C. Busse, James B. Howard, Michael W. W. Adams, Gerd N. La Mar	1994	23
15	Characterization of a cell surface glycoprotein associated with maturation of rat spermatozoa Molecular Reproduction and Development ·Eric D. Eccleston, Thomas W. White, James B. Howard, David W. Hamilton	1994	39
16	Determinants of protein hyperthermostability: purification and amino acid sequence of rubredoxin from the hyperthermophilic archaebacterium Pyrococcus furiosus and secondary structure of the zinc adduct by NMR Biochemistry ·Paul R. Blake, Jae Bum Park, Frank O. Bryant, Shigetoshi Aono, Jon Magnuson, Eric D. Eccleston, James B. Howard, Michael F. Summers, Michael W. W. Adams	1991	127
17	Identification of the reactive sulfhydryl and sequences of cysteinyl-tryptic peptides from beef heart aconitase. Journal of Biological Chemistry ·David W. Plank, James B. Howard	1988	24
18	Reactive site in human alpha 2-macroglobulin: circumstantial evidence for a thiolester. Proceedings of the National Academy of Sciences ·James B. Howard	1981	119
19	ADP-ribosylation of elongation factor 2 by diphtheria toxin. NMR spectra and proposed structures of ribosyl-diphthamide and its hydrolysis products. Journal of Biological Chemistry ·Brian G. Van Ness, James B. Howard, James W. Bodley	1980	244
20	Characterization of alkylamine-sensitive site in alpha 2-macroglobulin. Proceedings of the National Academy of Sciences ·R P Swenson, James B. Howard	1979	149

About James B. Howard

James B. Howard is a scholar working on Renewable Energy, Sustainability and the Environment, Catalysis, Inorganic Chemistry, Biotechnology and Molecular Biology, having authored 89 papers that have together received 8.5k indexed citations. Recurring topics across this work include Metalloenzymes and iron-sulfur proteins (44 papers), Metal-Catalyzed Oxygenation Mechanisms (20 papers), Enzyme Structure and Function (15 papers), Electrocatalysts for Energy Conversion (12 papers), Ammonia Synthesis and Nitrogen Reduction (10 papers), Hemoglobin structure and function (6 papers), Trace Elements in Health (5 papers) and Microbial Fuel Cells and Bioremediation (5 papers). The work is most often cited by research in Renewable Energy, Sustainability and the Environment (4.3k citations), Catalysis (1.8k citations), Inorganic Chemistry (1.9k citations), Process Chemistry and Technology (126 citations) and Molecular Biology (2.8k citations). James B. Howard has collaborated with scholars based in United States, Germany and France. Frequent co-authors include Douglas C. Rees, Oliver Einsle, F. Akif Tezcan, R P Swenson, Susana L. A. Andrade, Gary L. Nelsestuen, Brian G. Van Ness, James W. Bodley, Thomas H. Zytkovicz and Mika Yoshida. Their work appears in journals such as Journal of Biological Chemistry, Biochemistry, Proceedings of the National Academy of Sciences, Science and Biochemical and Biophysical Research Communications.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

Explore authors with similar magnitude of impact