Udo Klein

886 total citations
24 papers, 676 citations indexed

About

Udo Klein is a scholar working on Molecular Biology, Physiology and Organic Chemistry. According to data from OpenAlex, Udo Klein has authored 24 papers receiving a total of 676 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Molecular Biology, 10 papers in Physiology and 8 papers in Organic Chemistry. Recurrent topics in Udo Klein's work include Glycosylation and Glycoproteins Research (10 papers), Lysosomal Storage Disorders Research (10 papers) and Proteoglycans and glycosaminoglycans research (8 papers). Udo Klein is often cited by papers focused on Glycosylation and Glycoproteins Research (10 papers), Lysosomal Storage Disorders Research (10 papers) and Proteoglycans and glycosaminoglycans research (8 papers). Udo Klein collaborates with scholars based in Germany, Austria and Netherlands. Udo Klein's co-authors include Kurt Von Figura, Hans Kresse, G Strecker, Andrej Hasilík, Abdül Waheed, Josef Glössl, Regina Pohlmann, H. Lode, T. Schaberg and Eduard Paschke and has published in prestigious journals such as Proceedings of the National Academy of Sciences, American Journal of Respiratory and Critical Care Medicine and Cancer.

In The Last Decade

Udo Klein

23 papers receiving 593 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Udo Klein Germany 13 339 311 279 179 90 24 676
Yildiz Yildiz Germany 11 309 0.9× 316 1.0× 184 0.7× 139 0.8× 80 0.9× 17 630
G Watson United Kingdom 14 305 0.9× 107 0.3× 158 0.6× 24 0.1× 51 0.6× 19 805
Martin Hasilik Germany 6 531 1.6× 146 0.5× 97 0.3× 231 1.3× 29 0.3× 8 651
Yoshikuni Nakamura Japan 18 470 1.4× 96 0.3× 287 1.0× 31 0.2× 32 0.4× 37 837
Romain Péanne Belgium 9 416 1.2× 123 0.4× 129 0.5× 119 0.7× 23 0.3× 11 576
L. J. Journey United States 12 307 0.9× 44 0.1× 103 0.4× 26 0.1× 28 0.3× 13 558
Kaoru Otsu Japan 14 256 0.8× 24 0.1× 185 0.7× 42 0.2× 26 0.3× 22 462
R. Eckerstorfer Austria 11 237 0.7× 33 0.1× 155 0.6× 19 0.1× 72 0.8× 16 561
Qin Zhu United States 10 376 1.1× 100 0.3× 213 0.8× 54 0.3× 52 0.6× 21 578
N Takami Japan 10 312 0.9× 70 0.2× 114 0.4× 15 0.1× 56 0.6× 13 535

Countries citing papers authored by Udo Klein

Since Specialization
Citations

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

Fields of papers citing papers by Udo Klein

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Udo Klein

This figure shows the co-authorship network connecting the top 25 collaborators of Udo Klein. A scholar is included among the top collaborators of Udo Klein 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 Udo Klein. Udo Klein is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Schaberg, T., et al.. (1995). Subpopulations of Alveolar Macrophages in Smokers and Nonsmokers: Relation to the Expression of CD11/CD18 Molecules and Superoxide Anion Production. American Journal of Respiratory and Critical Care Medicine. 151(5). 1551–1558. 42 indexed citations
2.
Schröder, Werner, et al.. (1990). Rapid high-performance liquid chromatographic protein quantitation of purified recombinant Factor VIII containing interfering substances. Journal of Chromatography A. 512. 213–218. 6 indexed citations
3.
Stelzner, A., et al.. (1982). [Optimization of lysozyme determination: comparative study of preparations of test cultures of Micrococcus luteus (M. lysodeikticus Fleming)].. PubMed. 253(2). 253–64. 10 indexed citations
4.
Stelzner, A., et al.. (1982). [Analysis of methods for optimizing lysozyme determination].. PubMed. 28(4). 251–9. 1 indexed citations
5.
Klein, Udo, Jacques J. P. van de Kamp, Kurt Von Figura, & Regina Pohlmann. (1981). Sanfilippo syndrome type C: assay for acetyl‐CoA: α‐glucosaminide N‐acetyltransferase in leukocytes for detection of homozygous and heterozygous individuals. Clinical Genetics. 20(1). 55–59. 10 indexed citations
6.
Klein, Udo & Kurt Von Figura. (1980). A 3H-labelled trisaccharide from heparin as substrate for acetyl:CoA: 2-amino-2-deoxy-α-d-glucoside N-acetyltransferase. Carbohydrate Research. 78(2). 249–256. 8 indexed citations
7.
Klein, Udo & Kurt Von Figura. (1980). Characterization of dermatan sulfate in mucopolysaccharidosis VI Evidence for the absence of hyaluronidase-like enzymes in human skin fibroblasts. Biochimica et Biophysica Acta (BBA) - General Subjects. 630(1). 10–14. 13 indexed citations
8.
Figura, Kurt Von & Udo Klein. (1979). Isolation and Characterization of Phosphorylated Oligosaccharides from α‐N‐Acetylglucosaminidase that Are Recognized by Cell‐Surface Receptors. European Journal of Biochemistry. 94(2). 347–354. 84 indexed citations
9.
Basner, Robert C., et al.. (1979). Multiple Deficiency of Mucopolysaccharide Sulfatases in Mucosulfatidosis. Pediatric Research. 13(12). 1316–1318. 35 indexed citations
10.
Klein, Udo, et al.. (1979). Substrate Specificity of a Heparan Sulfate-Degrading Endoglucuronidase from Human Placenta. Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 360(2). 1465–1472. 22 indexed citations
11.
Klein, Udo, et al.. (1979). Degradation of Even-Numbered Reduced and Non-Reduced Hyaluronate Oligosaccharides with D-Glucuronic Acid orN-Acetyl-D-glucosamine as Non-Reducing Terminal by Chondroitin ABC and AC Lyases. Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 360(2). 1457–1464. 7 indexed citations
12.
Bartsocas, Christos S., H Gröbe, J. J. P. van de Kamp, et al.. (1979). Sanfilippo type C disease: Clinical findings in four patients with a new variant of mucopolysaccharidosis III. European Journal of Pediatrics. 130(4). 251–258. 23 indexed citations
13.
Klein, Udo, Hans Kresse, & Kurt Von Figura. (1978). Sanfilippo syndrome type C: deficiency of acetyl-CoA:alpha-glucosaminide N-acetyltransferase in skin fibroblasts.. Proceedings of the National Academy of Sciences. 75(10). 5185–5189. 93 indexed citations
14.
Kresse, Hans, Kurt Von Figura, & Udo Klein. (1978). A New Biochemical Subtype of the Sanfilippo Syndrome: Characterization of the Storage Material in Cultured Fibroblasts of Sanfilippo C Patients. European Journal of Biochemistry. 92(2). 333–339. 17 indexed citations
15.
Klein, Udo, et al.. (1977). Characterization of Glycosaminoglycans Stored in Mucopolysaccharidosis III A: Evidence for a Generally Occuring Degradation of Heparan Sulfate by Endoglycosidases. Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 358(2). 1431–1438. 11 indexed citations
16.
Klein, Udo & Kurt Von Figura. (1976). Partial purification and characterization of a heparan sulfate specific endoglucuronidase. Biochemical and Biophysical Research Communications. 73(3). 569–576. 47 indexed citations
17.
Klein, Udo & Kurt Von Figura. (1976). Demonstration of D‐glucuronic acid as reducing terminal of intracellular heparan sulfates. FEBS Letters. 71(2). 266–268. 4 indexed citations
18.
Klein, Udo, Hans Kresse, & Kurt Von Figura. (1976). Evidence for degradation of heparan sulfate by endoglycosidases: Glucosamine and hexuronic acid are reducing terminals of intracellular heparan sulfate from human skin fibroblasts. Biochemical and Biophysical Research Communications. 69(1). 158–166. 44 indexed citations
19.
20.
Klein, Udo, et al.. (1961). Zur Herkunft des Schalenkalkes bei Süßwassermollusken. Internationale Revue der gesamten Hydrobiologie und Hydrographie. 46(3). 434–440. 1 indexed citations

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

Breakdown of academic impact, for papers by Yildiz Yildiz Breakdown of academic impact, for papers by G Watson Breakdown of academic impact, for papers by Martin Hasilik Breakdown of academic impact, for papers by Yoshikuni Nakamura Breakdown of academic impact, for papers by Romain Péanne Breakdown of academic impact, for papers by L. J. Journey Breakdown of academic impact, for papers by Kaoru Otsu Breakdown of academic impact, for papers by R. Eckerstorfer Breakdown of academic impact, for papers by Qin Zhu Breakdown of academic impact, for papers by N Takami
Rankless by CCL
2026