Christopher N. Penfold

3.1k total citations · 1 hit paper
50 papers, 2.4k citations indexed

About

Christopher N. Penfold is a scholar working on Molecular Biology, Genetics and Surgery. According to data from OpenAlex, Christopher N. Penfold has authored 50 papers receiving a total of 2.4k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Molecular Biology, 29 papers in Genetics and 7 papers in Surgery. Recurrent topics in Christopher N. Penfold's work include Bacterial Genetics and Biotechnology (25 papers), RNA and protein synthesis mechanisms (10 papers) and Bacteriophages and microbial interactions (7 papers). Christopher N. Penfold is often cited by papers focused on Bacterial Genetics and Biotechnology (25 papers), RNA and protein synthesis mechanisms (10 papers) and Bacteriophages and microbial interactions (7 papers). Christopher N. Penfold collaborates with scholars based in United Kingdom, Pakistan and United States. Christopher N. Penfold's co-authors include John G. Turner, Celso Eduardo Benedetti, Bart J. Feys, Richard James, Colin Kleanthous, Geoffrey R. Moore, Mireille Vankemmelbeke, Chris J. Lloyd, Stephen P. Diggle and Andrew M. Hemmings and has published in prestigious journals such as Journal of Biological Chemistry, PLoS ONE and The Plant Cell.

In The Last Decade

Christopher N. Penfold

49 papers receiving 2.3k 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.

Arabidopsis Mutants Selected for Resistance to the Phytotoxin Coronatine Are Male Sterile, Insensitive to Methyl Jasmonate, and Resistant to a Bacterial Pathogen.

1994 841 citations Christopher N. Penfold et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Christopher N. Penfold United Kingdom	23	1.3k	1.1k	530	476	216	50	2.4k
Alireza Zomorodipour Iran	14	243 0.2×	1.1k 1.1×	174 0.3×	351 0.7×	246 1.1×	48	1.8k
Deborah E. Dobson United States	25	158 0.1×	747 0.7×	209 0.4×	219 0.5×	72 0.3×	37	2.1k
Carlos Renato Machado Brazil	29	267 0.2×	1.2k 1.2×	883 1.7×	88 0.2×	98 0.5×	103	4.1k
Frederick K. Chu United States	23	180 0.1×	1.0k 1.0×	147 0.3×	189 0.4×	217 1.0×	49	2.0k
Pier Paolo Di Nocera Italy	23	524 0.4×	1.3k 1.2×	67 0.1×	299 0.6×	141 0.7×	43	1.6k
Carlos Robello Uruguay	31	220 0.2×	1.2k 1.2×	285 0.5×	95 0.2×	80 0.4×	129	2.8k
Guido Krupp Germany	27	399 0.3×	1.5k 1.4×	55 0.1×	237 0.5×	242 1.1×	62	2.1k
Horst Domdey Germany	23	839 0.7×	1.8k 1.7×	100 0.2×	144 0.3×	193 0.9×	42	2.5k
Daniel C. Desrosiers United States	16	144 0.1×	521 0.5×	175 0.3×	152 0.3×	86 0.4×	17	1.5k
C. Levenson United States	7	210 0.2×	959 0.9×	50 0.1×	371 0.8×	193 0.9×	9	1.9k

Countries citing papers authored by Christopher N. Penfold

Since Specialization

Citations

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

Fields of papers citing papers by Christopher N. Penfold

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Christopher N. Penfold. 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 Christopher N. Penfold. The network helps show where Christopher N. Penfold may publish in the future.

Co-authorship network of co-authors of Christopher N. Penfold

This figure shows the co-authorship network connecting the top 25 collaborators of Christopher N. Penfold. A scholar is included among the top collaborators of Christopher N. Penfold 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 Christopher N. Penfold. Christopher N. Penfold 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

Penfold, Christopher N., et al.. (2024). The dynamics of colicin E9 release from Escherichia coli in native conditions. Letters in Applied Microbiology. 77(5). 1 indexed citations

Vankemmelbeke, Mireille, et al.. (2022). Heterogeneity in the spontaneous induction of the promoter of the ColE9 operon in Escherichia coli. Archives of Microbiology. 204(10). 628–628. 2 indexed citations

Penfold, Christopher N., et al.. (2019). Competition in Biofilms between Cystic Fibrosis Isolates of Pseudomonas aeruginosa Is Shaped by R-Pyocins. mBio. 10(1). 71 indexed citations

Kim, Young Chan, Alexander W. Tarr, & Christopher N. Penfold. (2014). Colicin import into E. coli cells: A model system for insights into the import mechanisms of bacteriocins. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research. 1843(8). 1717–1731. 49 indexed citations

Cockayne, Alan, et al.. (2013). Engineering of the LukS-PV and LukF-PV subunits of Staphylococcus aureusPanton-Valentine leukocidin for Diagnostic and Therapeutic Applications. BMC Biotechnology. 13(1). 103–103. 6 indexed citations

Li, Chan, Ying Zhang, Mireille Vankemmelbeke, et al.. (2012). Structural Evidence That Colicin A Protein Binds to a Novel Binding Site of TolA Protein in Escherichia coli Periplasm. Journal of Biological Chemistry. 287(23). 19048–19057. 16 indexed citations

Hecht, Oliver, Ying Zhang, Chan Li, et al.. (2010). Characterisation of the interaction of colicin A with its co‐receptor TolA. FEBS Letters. 584(11). 2249–2252. 6 indexed citations

Zhang, Ying, Chan Li, Mireille Vankemmelbeke, et al.. (2009). The crystal structure of the TolB box of colicin A in complex with TolB reveals important differences in the recruitment of the common TolB translocation portal used by group A colicins. Molecular Microbiology. 75(3). 623–636. 19 indexed citations

Vankemmelbeke, Mireille, Ying Zhang, Geoffrey R. Moore, et al.. (2009). Energy-dependent Immunity Protein Release during tol-dependent Nuclease Colicin Translocation. Journal of Biological Chemistry. 284(28). 18932–18941. 36 indexed citations

10.

Macdonald, Colin, Emily S. Collins, Christopher N. Penfold, et al.. (2004). Characterisation of a mobile protein-binding epitope in the translocation domain of colicin E9. Journal of Biomolecular NMR. 30(1). 81–96. 15 indexed citations

11.

Lloyd, Chris J., et al.. (2004). Total mandibular reconstruction for massive osteolysis of the mandible (Gorham–Stout syndrome). British Journal of Oral and Maxillofacial Surgery. 43(2). 166–168. 45 indexed citations

12.

Lloyd, Chris J. & Christopher N. Penfold. (2002). Insertion of percutaneous endoscopic gastrostomy tubes by a maxillofacialsurgical team in patients with oropharyngeal cancer. British Journal of Oral and Maxillofacial Surgery. 40(2). 122–124. 10 indexed citations

13.

Penfold, Christopher N., et al.. (2000). A 76‐residue polypeptide of colicin E9 confers receptor specificity and inhibits the growth of vitamin B₁₂‐dependent Escherichia coli 113/3 cells. Molecular Microbiology. 38(3). 639–649. 33 indexed citations

14.

Carr, S.B., Christopher N. Penfold, Vicki A. Bamford, Richard James, & Andrew M. Hemmings. (2000). The structure of TolB, an essential component of the tol-dependent translocation system, and its protein–protein interaction with the translocation domain of colicin E9. Structure. 8(1). 57–66. 72 indexed citations

15.

Penfold, Christopher N., et al.. (1996). Isolation, characterisation and expression of the bacterioferritin gene ofRhodobacter capsulatus. FEMS Microbiology Letters. 139(2-3). 143–148. 10 indexed citations

16.

Penfold, Christopher N., Andrew E. Brown, K.M. Lavery, & Peter J.H. Venn. (1996). Combined radial forearm and pharyngeal flap for soft palate reconstruction. British Journal of Oral and Maxillofacial Surgery. 34(4). 322–324. 25 indexed citations

17.

Penfold, Christopher N.. (1996). A review of 23 patients with tuberculosis of the head and neck. British Journal of Oral and Maxillofacial Surgery. 34(6). 508–510. 39 indexed citations

18.

Penfold, Christopher N., et al.. (1995). Sequence, expression and transcriptional analysis of the coronafacate ligase-encoding gene required for coronatine biosynthesis by Pseudomonas syringae. Gene. 153(1). 17–23. 45 indexed citations

19.

Penfold, Christopher N., et al.. (1992). Combined latissimus dorsiserratus anterior/rib composite free flap in mandibular reconstruction. International Journal of Oral and Maxillofacial Surgery. 21(2). 92–96. 16 indexed citations

20.

Penfold, Christopher N., D. Lang, & B.T. Evans. (1992). The management of orbital roof fractures. British Journal of Oral and Maxillofacial Surgery. 30(2). 97–103. 27 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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