Mark A. Rishavy

753 citations

22 papers · 563 · h-index 15

Impact in

Nutrition and Dietetics top 5%
- Vitamin K Research Studies
- Vitamin C and Antioxidants Research
Biochemistry top 10%
- Amino Acid Enzymes and Metabolism

Papers in

Nutrition and Dietetics 12
- Vitamin K Research Studies 12
- Vitamin C and Antioxidants Research 7
Biochemistry 6
- Amino Acid Enzymes and Metabolism 6

Co-authors: Kathleen L. Berkner (13 shared papers)W. W. Cleland (6 shared papers)Kevin W. Hallgren (10 shared papers)Kurt W. Runge (7 shared papers)Paul F. Fitzpatrick (1 shared paper)W. W. Cleland (3 shared papers)Alison J. Whelan (1 shared paper)Julie Lacombe (1 shared paper)
Journals: Biochemistry (6 papers)Journal of Biological Chemistry (4 papers)Canadian Journal of Chemistry (2 papers)Blood (2 papers)Journal of Thrombosis and Haemostasis (1 paper)
Partner nations: United States Netherlands Poland

In The Last Decade

Mark A. Rishavy

22 papers receiving 555 citations

Peers

Replace Thomas H. Zytkovicz with:

Thomas H. Zytkovicz United States

Carville G. Bevans Germany

A. Lagrou Belgium

Masazumi Takeshita Japan

R. Michael Baldwin United States

Edwin C. Chinje United Kingdom

Kazushi Okada Japan

Toshitsugu Yubisui Japan

Leo Kesner United States

Hideharu Ikebuchi Japan

Mark A. Rishavy relative to Thomas H. Zytkovicz United States Thomas H. Zytkovicz's profile →

Citations per field

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Thomas H. Zytkovicz · 1×

×1.0 221/224

ND

×0.7 76/107

BIOCH

×1.2 73/62

PHARM

×0.9 82/91

CB

×0.8 50/59

GENET

Citations per year

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Countries citing papers authored by Mark A. Rishavy

Since Specialization

Citations

This map shows the geographic impact of Mark A. Rishavy'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 Mark A. Rishavy with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Mark A. Rishavy more than expected).

Fields of papers citing papers by Mark A. Rishavy

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Mark A. Rishavy. 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 Mark A. Rishavy. The network helps show where Mark A. Rishavy may publish in the future.

Co-authors

The 23 scholars most cited alongside Mark A. Rishavy, 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 Mark A. Rishavy Line = papers co-authored together Mark A. Rishavy links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 22 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Mutations in the GGCX and ABCC6 Genes in a Family with Pseudoxanthoma Elasticum-Like Phenotypes Journal of Investigative Dermatology ·Qiaoli Li, Dorothy K. Grange, Nicole L. Armstrong, Alison J. Whelan, M. Yadira Hurley, Mark A. Rishavy, Kevin W. Hallgren, Kathleen L. Berkner, Leon J. Schurgers, Qiujie Jiang, Jouni Uitto	2008	73
2	Novel Insight into the Mechanism of the Vitamin K Oxidoreductase (VKOR) Journal of Biological Chemistry ·Mark A. Rishavy, Aisulu Usubalieva, Kevin W. Hallgren, Kathleen L. Berkner	2010	69
3	Nitrogen Isotope Effects As Probes of the Mechanism of d-Amino Acid Oxidase Journal of the American Chemical Society ·Kevin A. Kurtz, Mark A. Rishavy, W. W. Cleland, Paul F. Fitzpatrick	2000	60
4	Vitamin K Oxygenation, Glutamate Carboxylation, and Processivity: Defining the Three Critical Facets of Catalysis by the Vitamin K–Dependent Carboxylase Advances in Nutrition ·Mark A. Rishavy, Kathleen L. Berkner	2012	43
5	Determination of the Mechanism of Orotidine 5‘-Monophosphate Decarboxylase by Isotope Effects Biochemistry ·Mark A. Rishavy, W. W. Cleland	2000	37
6	<sup>13</sup>C, <sup>15</sup>N, and <sup>18</sup>O equilibrium isotope effects and fractionation factors Canadian Journal of Chemistry ·Mark A. Rishavy, W. W. Cleland	1999	36
7	The Vitamin K Oxidoreductase Is a Multimer That Efficiently Reduces Vitamin K Epoxide to Hydroquinone to Allow Vitamin K-dependent Protein Carboxylation Journal of Biological Chemistry ·Mark A. Rishavy, Kevin W. Hallgren, Lee A. Wilson, Aisulu Usubalieva, Kurt W. Runge, Kathleen L. Berkner	2013	35
8	Brønsted Analysis Reveals Lys218 as the Carboxylase Active Site Base That Deprotonates Vitamin K Hydroquinone To Initiate Vitamin K-Dependent Protein Carboxylation Biochemistry ·Mark A. Rishavy, Kevin W. Hallgren, Anna V. Yakubenko, Rebecca L. Shtofman, Kurt W. Runge, Kathleen L. Berkner	2006	29
9	VKOR paralog VKORC1L1 supports vitamin K–dependent protein carboxylation in vivo JCI Insight ·Julie Lacombe, Mark A. Rishavy, Kathleen L. Berkner, Mathieu Ferron	2018	27
10	A new model for vitamin K-dependent carboxylation: The catalytic base that deprotonates vitamin K hydroquinone is not Cys but an activated amine Proceedings of the National Academy of Sciences ·Mark A. Rishavy, B. Nirmala Pudota, Kevin W. Hallgren, Wen Qian, Anna V. Yakubenko, Jee-Hyeon Song, Kurt W. Runge, Kathleen L. Berkner	2004	26
11	Warfarin alters vitamin K metabolism: a surprising mechanism of VKORC1 uncoupling necessitates an additional reductase Blood ·Mark A. Rishavy, Kevin W. Hallgren, Lee A. Wilson, Savita Singh, Kurt W. Runge, Kathleen L. Berkner	2018	21
12	¹³C and ¹⁵N Kinetic Isotope Effects on the Reaction of Aspartate Aminotransferase and the Tyrosine-225 to Phenylalanine Mutant Biochemistry ·Mark A. Rishavy, W. W. Cleland	2000	18
13	Insight into the Coupling Mechanism of the Vitamin K-Dependent Carboxylase: Mutation of Histidine 160 Disrupts Glutamic Acid Carbanion Formation and Efficient Coupling of Vitamin K Epoxidation to Glutamic Acid Carboxylation Biochemistry ·Mark A. Rishavy, Kathleen L. Berkner	2008	16
14	The Vitamin K-dependent Carboxylase Has Been Acquired by Leptospira Pathogens and Shows Altered Activity That Suggests a Role Other than Protein Carboxylation Journal of Biological Chemistry ·Mark A. Rishavy, Kevin W. Hallgren, Anna V. Yakubenko, Richard L. Zuerner, Kurt W. Runge, Kathleen L. Berkner	2005	15
15	¹⁵N Isotope Effects in Glutamine Hydrolysis Catalyzed by Carbamyl Phosphate Synthetase: Evidence for a Tetrahedral Intermediate in the Mechanism Biochemistry ·Mark A. Rishavy, W. W. Cleland, Carol J. Lusty	2000	14
16	Lanthanide Catalyzed Cyclization of Uridine 3′-p-Nitrophenyl Phosphate Bioorganic Chemistry ·Mark A. Rishavy, Alvan C. Hengge, W. W. Cleland	2000	14
17	Determination of the Mechanism of Human Malic Enzyme with Natural and Alternate Dinucleotides by Isotope Effects Archives of Biochemistry and Biophysics ·Mark A. Rishavy, Zhiru Yang, Liang Tong, W. W. Cleland	2001	7
18	²H, ¹³C, and ¹⁵N Kinetic Isotope Effects on the Reaction of the Ammonia-Rescued K258A Mutant of Aspartate Aminotransferase Biochemistry ·S. Kirk Wright, Mark A. Rishavy, W. W. Cleland	2003	7
19	GGCX mutants that impair hemostasis reveal the importance of processivity and full carboxylation to VKD protein function Blood ·Mark A. Rishavy, Kevin W. Hallgren, Lee A. Wilson, James M. Hiznay, Kurt W. Runge, Kathleen L. Berkner	2022	5
20	The Vitamin K-dependent Carboxylase Generates γ-Carboxylated Glutamates by Using CO2 to Facilitate Glutamate Deprotonation in a Concerted Mechanism That Drives Catalysis Journal of Biological Chemistry ·Mark A. Rishavy, Kevin W. Hallgren, Kathleen L. Berkner	2011	5

About Mark A. Rishavy

Mark A. Rishavy is a scholar working on Nutrition and Dietetics, Biochemistry, Materials Chemistry, Molecular Biology and Neurology, having authored 22 papers that have together received 563 indexed citations. Recurring topics across this work include Vitamin K Research Studies (12 papers), Vitamin C and Antioxidants Research (7 papers), Amino Acid Enzymes and Metabolism (6 papers), Alcoholism and Thiamine Deficiency (5 papers), Enzyme Structure and Function (5 papers), Hormonal Regulation and Hypertension (4 papers), Metabolism and Genetic Disorders (3 papers) and Pharmacogenetics and Drug Metabolism (3 papers). The work is most often cited by research in Nutrition and Dietetics (221 citations), Biochemistry (76 citations), Pharmacology (73 citations), Cell Biology (82 citations) and Genetics (50 citations). Mark A. Rishavy has collaborated with scholars based in United States, Netherlands and Poland. Frequent co-authors include Kathleen L. Berkner, W. W. Cleland, Kevin W. Hallgren, Kurt W. Runge, Paul F. Fitzpatrick, W. W. Cleland, Alison J. Whelan, Julie Lacombe, Jouni Uitto and Mathieu Ferron. Their work appears in journals such as Biochemistry, Journal of Biological Chemistry, Canadian Journal of Chemistry, Blood and Journal of Thrombosis and Haemostasis.

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.

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