Helmut Kallwass

437 total citations
12 papers, 328 citations indexed

About

Helmut Kallwass is a scholar working on Molecular Biology, Materials Chemistry and Rheumatology. According to data from OpenAlex, Helmut Kallwass has authored 12 papers receiving a total of 328 indexed citations (citations by other indexed papers that have themselves been cited), including 11 papers in Molecular Biology, 6 papers in Materials Chemistry and 2 papers in Rheumatology. Recurrent topics in Helmut Kallwass's work include Enzyme Structure and Function (6 papers), Protein Structure and Dynamics (5 papers) and Biochemical and Molecular Research (3 papers). Helmut Kallwass is often cited by papers focused on Enzyme Structure and Function (6 papers), Protein Structure and Dynamics (5 papers) and Biochemical and Molecular Research (3 papers). Helmut Kallwass collaborates with scholars based in Canada, Germany and United States. Helmut Kallwass's co-authors include J. Bryan Jones, Wendy Parris, Marvin Gold, Jürgen Hoppe, Helmut Blöcker, John T. Collins, Cyril M. Kay, Priya S. Kishnani, Deeksha Bali and Jian Dai and has published in prestigious journals such as Journal of the American Chemical Society, Biochemistry and Biochemical and Biophysical Research Communications.

In The Last Decade

Helmut Kallwass

12 papers receiving 311 citations

Peers

Countries citing papers authored by Helmut Kallwass

Since Specialization

Citations

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

Fields of papers citing papers by Helmut Kallwass

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Helmut Kallwass. 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 Helmut Kallwass. The network helps show where Helmut Kallwass may publish in the future.

Co-authorship network of co-authors of Helmut Kallwass

This figure shows the co-authorship network connecting the top 25 collaborators of Helmut Kallwass. A scholar is included among the top collaborators of Helmut Kallwass based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Helmut Kallwass. Helmut Kallwass is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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12 of 12 papers shown

#	Work	Indexed citations
1	Rapid diagnosis of late-onset Pompe disease by fluorometric assay of α-glucosidase activities in dried blood spots 2007 ·Molecular Genetics and Metabolism ·Helmut Kallwass, (unknown), (unknown), (unknown), Robert J. Pomponio, Deeksha Bali, Jian Dai, Priya S. Kishnani, Alison Skrinar, Deyanira Corzo, Joan Keutzer	46
2	Comparison of maltose and acarbose as inhibitors of maltase-glucoamylase activity in assaying acid α-glucosidase activity in dried blood spots for the diagnosis of infantile Pompe disease 2006 ·Genetics in Medicine ·Haoyue Zhang, Helmut Kallwass, Sarah P. Young, (unknown), Jian Dai, Priya S. Kishnani, David S. Millington, Joan Keutzer, Yuan‐Tsong Chen, Deeksha Bali	63
3	Enzymes for the resolution of α-tertiary-substituted carboxylic acid esters 1994 ·Bioorganic & Medicinal Chemistry ·Helmut Kallwass, Christopher Yee, (unknown), (unknown), Elizabeth E. Rogers, Spencer L. Shames	10
4	Threonine 246 at the active site of the L-lactate dehydrogenase of Bacillus stearothermophilus is important for catalysis but not for substrate binding 1993 ·Biochemistry ·Roman Sakowicz, Helmut Kallwass, Wendy Parris, Cyril M. Kay, J. Bryan Jones, Marvin Gold	13
5	Site-specific immobilization of an L-lactate dehydrogenase via an engineered surface cysteine residue 1993 ·Biotechnology Letters ·Helmut Kallwass, Wendy Parris, (unknown), Marvin Gold, J. Bryan Jones	14
6	THR246 mutations decrease substrate inhibition in lactate dehydrogenase 1992 ·Biochemical and Biophysical Research Communications ·Roman Sakowicz, Helmut Kallwass, Wendy Parris, Marvin Gold, J. Bryan Jones	1
7	Single amino acid substitutions can further increase the stability of a thermophilic L-lactate dehydrogenase 1992 ·Protein Engineering Design and Selection ·Helmut Kallwass, Witold K. Surewicz, Wendy Parris, Emma L. A. Macfarlane, Marcel Luyten, Cyril M. Kay, Marvin Gold, J. Bryan Jones	24
8	On the factors controlling the structural specificity and stereospecificity of the L-lactate dehydrogenase from Bacillus stearothermophilus: effects of Gln102.fwdarw.Arg and Arg171.fwdarw.Trp/Tyr double mutations 1992 ·Journal of the American Chemical Society ·Helmut Kallwass, James K. Hogan, Emma L. A. Macfarlane, Valeri Martichonok, Wendy Parris, Cyril M. Kay, Marvin Gold, J. Bryan Jones	31
9	Potential of R-2-Hydroxyisocaproate dehydrogenase from Lactobacillus casei for stereospecific reductions 1992 ·Enzyme and Microbial Technology ·Helmut Kallwass	38
10	Effects of Gln102Arg and Cys97Gly mutations on the structural specificity and stereospecificity of the L-lactate dehydrogenase from Bacillus stearothermophilus 1992 ·Journal of the American Chemical Society ·Helmut Kallwass, Marcel Luyten, Wendy Parris, Marvin Gold, Cyril M. Kay, J. Bryan Jones	11
11	Cloning, sequencing and expression in Escherichia coli of the d-2-hydroxyisocaproate dehydrogenase gene of Lactobacillus casei 1989 ·Gene ·(unknown), Helmut Blöcker, Helmut Kallwass, Jürgen Hoppe, (unknown), John T. Collins	73
12	Crystallisation and molecular properties of d-2-hydroxyisocaproate dehydrogenase from Lactobacillus casei 1987 ·FEMS Microbiology Letters ·Helmut Kallwass, Hsin Tsai, (unknown)	4

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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