C. J. Lammel

3.4k total citations · 2 hit papers
33 papers, 2.7k citations indexed

About

C. J. Lammel is a scholar working on Microbiology, Molecular Biology and Epidemiology. According to data from OpenAlex, C. J. Lammel has authored 33 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Microbiology, 6 papers in Molecular Biology and 6 papers in Epidemiology. Recurrent topics in C. J. Lammel's work include Reproductive tract infections research (15 papers), Bacterial Infections and Vaccines (11 papers) and Syphilis Diagnosis and Treatment (5 papers). C. J. Lammel is often cited by papers focused on Reproductive tract infections research (15 papers), Bacterial Infections and Vaccines (11 papers) and Syphilis Diagnosis and Treatment (5 papers). C. J. Lammel collaborates with scholars based in United States, Mali and Germany. C. J. Lammel's co-authors include Richard S. Stephens, Sue Kalman, Lynn Olinger, Wayne Mitchell, Ronald W. Davis, Jun Fan, Qixun Zhao, L. Aravind, Roman L. Tatusov and Eugene V. Koonin and has published in prestigious journals such as Science, Journal of Clinical Investigation and Nature Genetics.

In The Last Decade

C. J. Lammel

33 papers receiving 2.6k 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.

Genome Sequence of an Obligate Intracellular Pathogen of Humans: Chlamydia trachomatis

1998 1.3k citations Richard S. Stephens, Sue Kalman et al. profile →
Comparative genomes of Chlamydia pneumoniae and C. trachomatis

1999 559 citations Sue Kalman, Wayne Mitchell et al. Nature Genetics profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
C. J. Lammel United States	22	1.7k	892	886	378	293	33	2.7k
Lynn Olinger United States	9	1.6k 0.9×	893 1.0×	777 0.9×	282 0.7×	283 1.0×	10	2.2k
Giulio Ratti Italy	26	1.0k 0.6×	761 0.9×	635 0.7×	481 1.3×	290 1.0×	46	2.1k
Sue Kalman United States	6	1.3k 0.8×	930 1.0×	1.3k 1.4×	237 0.6×	548 1.9×	6	2.7k
Michael F. Barile United States	33	2.3k 1.4×	1.4k 1.5×	528 0.6×	715 1.9×	187 0.6×	126	3.7k
James W. Moulder United States	23	1.4k 0.8×	1.0k 1.1×	548 0.6×	402 1.1×	542 1.8×	76	2.5k
T P Hatch United States	27	1.6k 1.0×	968 1.1×	629 0.7×	300 0.8×	331 1.1×	49	2.2k
Marci A. Scidmore United States	24	2.0k 1.2×	1.1k 1.2×	975 1.1×	701 1.9×	524 1.8×	24	3.4k
J Swanson United States	40	3.0k 1.8×	987 1.1×	1.5k 1.7×	619 1.6×	578 2.0×	70	4.9k
Priscilla B. Wyrick United States	32	1.7k 1.0×	999 1.1×	645 0.7×	751 2.0×	372 1.3×	66	2.6k
Leslie D. Cope United States	29	866 0.5×	896 1.0×	712 0.8×	236 0.6×	496 1.7×	48	2.4k

Countries citing papers authored by C. J. Lammel

Since Specialization

Citations

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

Fields of papers citing papers by C. J. Lammel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by C. J. Lammel. 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 C. J. Lammel. The network helps show where C. J. Lammel may publish in the future.

Co-authorship network of co-authors of C. J. Lammel

This figure shows the co-authorship network connecting the top 25 collaborators of C. J. Lammel. A scholar is included among the top collaborators of C. J. Lammel 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 C. J. Lammel. C. J. Lammel 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

Stephens, Richard S. & C. J. Lammel. (2001). Chlamydia outer membrane protein discovery using genomics. Current Opinion in Microbiology. 4(1). 16–20. 38 indexed citations

Ellen, Jonathan M., et al.. (1999). Cervical secretory immunoglobulin A in adolescent girls. Journal of Adolescent Health. 25(2). 150–154. 6 indexed citations

Kalman, Sue, Wayne Mitchell, C. J. Lammel, et al.. (1999). Comparative genomes of Chlamydia pneumoniae and C. trachomatis. Nature Genetics. 21(4). 385–389. 559 indexed citations breakdown →

Lammel, C. J. & Richard S. Stephens. (1999). A cell biology approach to microbial pathogenesis. Cellular Microbiology. 1(1). 75–77. 1 indexed citations

Zhao, Qixun, C. J. Lammel, Erika Lindquist, & Richard S. Stephens. (1996). Recall of Original Serologic Response after Challenge with Homologous and Heterologous Chlamydia trachomatis Serovars. The Journal of Infectious Diseases. 173(3). 609–618. 7 indexed citations

Morelli, Giovanna, Jesús Del Valle, C. J. Lammel, et al.. (1994). Immunogenicity and evolutionary variability of epitopes within IgA1 protease from serogroup A Neisseria meningitidis. Molecular Microbiology. 11(1). 175–187. 29 indexed citations

Lammel, C. J., et al.. (1993). In Vitro Model of Haemophilus ducreyi Adherence to and Entry into Eukaryotic Cells of Genital Origin. The Journal of Infectious Diseases. 167(3). 642–650. 32 indexed citations

Sarafian, S K, Gail Bolan, C. J. Lammel, et al.. (1993). Multistrain Outbreak of Chancroid in San Francisco, 1989-1991. The Journal of Infectious Diseases. 167(5). 1106–1111. 14 indexed citations

Brooks, George F., C. J. Lammel, M. S. Blake, Barica Kušećek, & M. Achtman. (1992). Antibodies against IgAl Protease Are Stimulated Both by Clinical Disease and Asymptomatic Carriage of Serogroup A Neisseria meningitidis. The Journal of Infectious Diseases. 166(6). 1316–1321. 46 indexed citations

10.

Dekker, Nusi P., C. J. Lammel, & G. F. Brooks. (1991). Scanning electron microscopy of piliated Neisseria gonorrhoeae processed with hexamethyldisilazane. Journal of Electron Microscopy Technique. 19(4). 461–467. 26 indexed citations

11.

Brooks, G. F., Lynn Olinger, C. J. Lammel, et al.. (1991). Prevalence of gene sequences coding for hypervariable regions of Opa (protein II) in Neisseria gonorrhoeae. Molecular Microbiology. 5(12). 3063–3072. 10 indexed citations

12.

Dekker, Nusi P., C. J. Lammel, Robert E. Mandrell, & G. F. Brooks. (1990). Opa (protein II) influences gonococcal organization in colonies, surface appearance, size and attachment to human fallopian tube tissues. Microbial Pathogenesis. 9(1). 19–31. 22 indexed citations

13.

Apicella, Michael A., Robert E. Mandrell, Marlene Shero, et al.. (1990). Modification by Sialic Acid of Neisseria gonorrhoeae Lipooligosaccharide Epitope Expression in Human Urethral Exudates: An Immunoelectron Microscopic Analysis. The Journal of Infectious Diseases. 162(2). 506–512. 126 indexed citations

14.

Brooks, G. F. & C. J. Lammel. (1989). Humoral immune response to gonococcal infections. Clinical Microbiology Reviews. 2(suppl). S5–10. 25 indexed citations

15.

Mordenti, Joyce, Richard H. Davis, C. J. Lammel, & G. F. Brooks. (1986). Bactericidal action of nafcillin, vancomycin, and three cephalosporins against nafcillin-susceptible and nafcillin-resistant coagulase-negative staphylococci. Diagnostic Microbiology and Infectious Disease. 5(1). 1–8. 1 indexed citations

16.

Lammel, C. J., Richard L. Sweet, Peter A. Rice, et al.. (1985). Antibody-Antigen Specificity in the Immune Response to Infection with Neisseria gonorrhoeae. The Journal of Infectious Diseases. 152(5). 990–1001. 52 indexed citations

17.

James, J. F., E. Zurlinden, C. J. Lammel, & G. F. Brooks. (1982). Relation of Protein I and Colony Opacity to Serum Killing of Neisseria gonorrhoeae. The Journal of Infectious Diseases. 145(1). 37–44. 38 indexed citations

18.

Ozbun, J. L., et al.. (1973). Starch Synthetase, Phosphorylase, ADPglucose Pyrophosphorylase, and UDPglucose Pyrophosphorylase in Developing Maize Kernels. PLANT PHYSIOLOGY. 51(1). 1–5. 84 indexed citations

19.

Preiss, Jack, et al.. (1971). A Unique Adenosine Diphosphoglucose Pyrophosphorylase Associated with Maize Embryo Tissue. PLANT PHYSIOLOGY. 47(1). 104–108. 27 indexed citations

20.

Ribéreau-Gayon, G., et al.. (1971). Biosynthesis of bacterial glycogen IX: Regulatory properties of the adenosine diphosphate glucose pyrophosphorylases of the Enterobocteriaceae. Archives of Biochemistry and Biophysics. 142(2). 675–692. 21 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.

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