Klaus Jann

9.7k total citations · 1 hit paper
197 papers, 7.8k citations indexed

About

Klaus Jann is a scholar working on Molecular Biology, Organic Chemistry and Endocrinology. According to data from OpenAlex, Klaus Jann has authored 197 papers receiving a total of 7.8k indexed citations (citations by other indexed papers that have themselves been cited), including 116 papers in Molecular Biology, 104 papers in Organic Chemistry and 89 papers in Endocrinology. Recurrent topics in Klaus Jann's work include Carbohydrate Chemistry and Synthesis (99 papers), Glycosylation and Glycoproteins Research (86 papers) and Escherichia coli research studies (86 papers). Klaus Jann is often cited by papers focused on Carbohydrate Chemistry and Synthesis (99 papers), Glycosylation and Glycoproteins Research (86 papers) and Escherichia coli research studies (86 papers). Klaus Jann collaborates with scholars based in Germany, United Kingdom and Russia. Klaus Jann's co-authors include Barbara Jann, Ben Jann, I Orskóv, Frits Ørskov, Markus A. Schmidt, Heinz Hoschützky, Konrad Reske, Ian S. Roberts, Peter Prehm and Willie F. Vann and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Klaus Jann

196 papers receiving 7.0k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Serology, chemistry, and genetics of O and K antigens of Escherichia coli

1977 712 citations I Orskóv, Frits Ørskov et al. Bacteriological Reviews profile →

Peers

Countries citing papers authored by Klaus Jann

Since Specialization

Citations

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

Fields of papers citing papers by Klaus Jann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Klaus Jann

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Isolation from recombinantEscherichia coliand characterization of CMP-Kdo synthetase, involved in the expression of the capsular K5 polysaccharide (K-CKS) 1995 ·FEMS Microbiology Letters ·Carsten Rosenow, Ian S. Roberts, Klaus Jann	23
2	大腸菌O22:K13から得たO22‐抗原(LPS)のO‐特異性多糖類の構造 1994 ·Carbohydrate Research ·(unknown), А. С. Шашков, (unknown), Ben Jann, Klaus Jann	10
3	Substrate specificities of glycosyltransferases involved in formation of heparin precursor and E. coli K5 capsular polysaccharides 1994 ·Carbohydrate Research ·Kerstin Lidholt, (unknown), Klaus Jann, Ulf Lindahl	18
4	Genetic analysis of Escherichia coli 09 rfb: identification and DNA sequence of phosphomannomutase and GDP-mannose pyrophosphorylase genes 1994 ·Microbiology ·T. Sugiyama, Nobuo Kido, Takayuki Komatsu, M Ohta, Klaus Jann, Ben Jann, (unknown), Naoki Kato	22
5	Structure of the O83-specific polysaccharide of Escherichia coli O83:K24:H31 1994 ·Carbohydrate Research ·Barbara Jann, Alexander S. Shashkov, Michael Hahne, (unknown), Klaus Jann	14
6	Structure of the O56 antigen of Escherichia coli, a polysaccharide containing 7-substituted α-N-acetylneuraminic acid 1993 ·Carbohydrate Research ·Grigorij Kogan, Alexander S. Shashkov, (unknown), Klaus Jann	8
7	Synthesis of the K5 (group II) capsular polysaccharide in transport-deficient recombinantEscherichia coli 1993 ·FEMS Microbiology Letters ·D Bronner, (unknown), Carlo Pazzani, Annabel N. Smith, Graham J. Boulnois, Ian S. Roberts, (unknown), Klaus Jann	29
8	Structure of theEscherichia coli0104 polysaccharide and its identity with the capsular K9 polysaccharide 1992 ·FEMS Microbiology Letters ·Grigorij Kogan, Barbara Jann, Klaus Jann	19
9	Molecular cloning and expression of the genes encoding theEscherichia coliK4 capsular polysaccharide, a fructose-substituted chondroitin 1990 ·FEMS Microbiology Letters ·Camilla Drake, Ian S. Roberts, Ben Jann, Klaus Jann, G J Boulnois	6
10	Monoclonal antibodies against O and K antigens of uropathogenic Escherichia coli O4 : K12 : H− as opsonins 1988 ·FEMS Microbiology Letters ·Chiyoji Abe, (unknown), Barbara Jann, Klaus Jann	7
11	Comparative structural elucidation of the K18, K22, and K100 antigens of Escherichia coli as related ribosyl-ribitol phosphates 1988 ·Carbohydrate Research ·(unknown), Barbara Jann, Klaus Jann	18
12	Structure of the capsular polysaccharide (K19 antigen) from uropathogenic Escherichia coli O25:K19:H12 1988 ·Carbohydrate Research ·Barbara Jann, (unknown), Thomas J. Dengler, Klaus Jann	8
13	Structure of the K74 antigen from Escherichia coli O44:K74:H18, a capsular polysaccharide containing furanosidic β-KDO residues 1988 ·Carbohydrate Research ·(unknown), Barbara Jann, Klaus Jann, Helmut Brade	14
14	Crossreactions of Escherichia coli K and O polysaccharides in antipneumococcal and anti-Salmonella sera. 1985 ·The Journal of Experimental Medicine ·M. Heidelberger, Klaus Jann, Ben Jann	9
15	Coliphage K5, specific forE. coliexhibiting the capsular K5 antigen 1982 ·FEMS Microbiology Letters ·(unknown), Ben Jann, G Schmidt, Jochen R. Golecki, (unknown), (unknown), Klaus Jann	48
16	SDS polyacrylamide gel electrophoresis and serological analysis of pili fromEscherichia coliof different pathogenic origin 1981 ·FEMS Microbiology Letters ·Klaus Jann, Barbara Jann, (unknown)	61
17	Participation ofPili andCell WallAdhesin intheYeast Agglutination Activity ofEscherichia coli 1981 ·Virology ·Yuval Eshdat, Volker Speth, Klaus Jann	1
18	A common intermediate in the biosynthesis of the O8 and O9 antigens of Escherichia coli 1979 ·FEMS Microbiology Letters ·(unknown), Shiro Kanegasaki, Klaus Jann	6
19	Biosynthesis of the 08-antigen ofEscherichia coliglucose at the reducing end of the polysaccharide and growth of the chain 1978 ·FEMS Microbiology Letters ·H.‐C. Flemming, Klaus Jann	12
20	Serology, chemistry, and genetics of O and K antigens of Escherichia coli breakdown → 1977 ·Bacteriological Reviews ·I Orskóv, Frits Ørskov, Ben Jann, Klaus Jann	712

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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