Chris A. Broka

4.4k total citations · 2 hit papers
31 papers, 3.5k citations indexed

About

Chris A. Broka is a scholar working on Organic Chemistry, Molecular Biology and Oncology. According to data from OpenAlex, Chris A. Broka has authored 31 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Organic Chemistry, 17 papers in Molecular Biology and 5 papers in Oncology. Recurrent topics in Chris A. Broka's work include DNA and Nucleic Acid Chemistry (7 papers), Chemical synthesis and alkaloids (7 papers) and Chemical Synthesis and Analysis (4 papers). Chris A. Broka is often cited by papers focused on DNA and Nucleic Acid Chemistry (7 papers), Chemical synthesis and alkaloids (7 papers) and Chemical Synthesis and Analysis (4 papers). Chris A. Broka collaborates with scholars based in United States, Germany and Poland. Chris A. Broka's co-authors include Keiichi Itakura, Richard M. Wing, Richard E. Dickerson, Horace R. Drew, T. Takano, Satoshi Tanaka, Shoji Tanaka, Tsunehiro Takano, Tong Shen and Sharon A. Kozlowski 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

Chris A. Broka

31 papers receiving 3.3k 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.

Structure of a B-DNA dodecamer: conformation and dynamics.

1981 1.3k citations Horace R. Drew, Richard M. Wing et al. Proceedings of the National Academy of Sciences profile →
Crystal structure analysis of a complete turn of B-DNA

1980 706 citations Richard M. Wing, Horace R. Drew et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Chris A. Broka United States	24	2.4k	1.1k	519	251	241	31	3.5k
G. A. VAN DER MAREL Netherlands	35	3.4k 1.4×	1.3k 1.1×	329 0.6×	252 1.0×	282 1.2×	111	4.1k
Paul B. Hopkins United States	39	2.2k 0.9×	1.7k 1.5×	453 0.9×	314 1.3×	211 0.9×	85	3.7k
Lawrence R. Phillips United States	32	1.9k 0.8×	869 0.8×	320 0.6×	147 0.6×	357 1.5×	130	3.2k
Keith R. Fox United Kingdom	39	5.3k 2.2×	922 0.8×	662 1.3×	206 0.8×	162 0.7×	206	5.8k
Jean Bernard Le Pecq France	29	1.8k 0.8×	577 0.5×	505 1.0×	240 1.0×	144 0.6×	57	2.6k
Henry M. Sobell United States	30	3.1k 1.3×	555 0.5×	583 1.1×	285 1.1×	288 1.2×	56	3.6k
Terence C. Jenkins United Kingdom	40	4.3k 1.8×	1.9k 1.8×	1.0k 1.9×	196 0.8×	161 0.7×	124	5.4k
Nanibhushan Dattagupta United States	24	2.2k 0.9×	794 0.7×	1.0k 2.0×	189 0.8×	156 0.6×	41	2.9k
Karl D. Hardman United States	29	3.2k 1.3×	646 0.6×	575 1.1×	705 2.8×	276 1.1×	39	4.5k
D. T. Elmore United Kingdom	17	2.3k 1.0×	526 0.5×	377 0.7×	355 1.4×	290 1.2×	78	3.6k

Countries citing papers authored by Chris A. Broka

Since Specialization

Citations

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

Fields of papers citing papers by Chris A. Broka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Chris A. Broka. 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 Chris A. Broka. The network helps show where Chris A. Broka may publish in the future.

Co-authorship network of co-authors of Chris A. Broka

This figure shows the co-authorship network connecting the top 25 collaborators of Chris A. Broka. A scholar is included among the top collaborators of Chris A. Broka 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 Chris A. Broka. Chris A. Broka 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

Campbell, Jeffrey A., Chris A. Broka, Michelle F. Browner, et al.. (2004). Rational design of 6-methylsulfonylindoles as selective cyclooxygenase-2 inhibitors. Bioorganic & Medicinal Chemistry Letters. 14(18). 4741–4745. 52 indexed citations

Broka, Chris A., Robert L. Martin, Christine Chan, et al.. (2002). Amino acid derived sulfonamide hydroxamates as inhibitors of procollagen C-Proteinase. Part 2: Solid-Phase optimization of side chains. Bioorganic & Medicinal Chemistry Letters. 12(8). 1233–1235. 12 indexed citations

Browner, Michelle F., Brett Lovejoy, Anthony Welch, et al.. (1999). Crystal structures of MMP-1 and -13 reveal the structural basis for selectivity of collagenase inhibitors.. Nature Structural Biology. 6(3). 217–221. 207 indexed citations

Bonhaus, Douglas W., Keith Bley, Chris A. Broka, et al.. (1995). Characterization of the electrophysiological, biochemical and behavioral actions of epibatidine.. Journal of Pharmacology and Experimental Therapeutics. 272(3). 1199–1203. 50 indexed citations

Hendricks, R., et al.. (1995). 2-aryl-indolyl maleimides - novel and potent inhibitors of protein kinase C. Bioorganic & Medicinal Chemistry Letters. 5(1). 67–72. 14 indexed citations

Broka, Chris A. & Béatrice Ruhland. (1992). Synthetic studies on wortmannin and 11-desacetoxywortmannin. The Journal of Organic Chemistry. 57(18). 4888–4894. 23 indexed citations

Broka, Chris A.. (1991). Total syntheses of phleigchrome, calphostin A, and calphostin D. Unusual stereoselective and stereospecific reactions in the synthesis of perylenequinones. Tetrahedron Letters. 32(7). 859–862. 45 indexed citations

Broka, Chris A., et al.. (1988). Anionic cyclizations of .alpha.-alkoxy lithiums. New, stereoselective routes to substituted tetrahydrofurans. The Journal of Organic Chemistry. 53(6). 1336–1338. 46 indexed citations

Broka, Chris A., et al.. (1988). Synthetic studies on thyrsiferol. Elaboration of the bromotetrahydropyran ring. The Journal of Organic Chemistry. 53(25). 5876–5885. 19 indexed citations

10.

Broka, Chris A., et al.. (1987). Synthetic studies on thyrsiferol. Tetrahedron Letters. 28(42). 4993–4996. 12 indexed citations

11.

Broka, Chris A., et al.. (1987). Total synthesis of debromoaplysiatoxin and aplysiatoxin. Journal of the American Chemical Society. 109(20). 6205–6207. 54 indexed citations

12.

Broka, Chris A. & Kan K. Eng. (1986). A short total synthesis of (.+-.)-gephyrotoxin-223AB. The Journal of Organic Chemistry. 51(25). 5043–5045. 36 indexed citations

13.

Wenkert, Ernest & Chris A. Broka. (1984). Synthesis of lycopodium alkaloids of the lycopodine structure type. Journal of the Chemical Society Chemical Communications. 714–714. 23 indexed citations

14.

Patel, Dinshaw J., Sharon A. Kozlowski, Luis A. Marky, et al.. (1982). Structure and energetics of a hexanucleotide duplex with stacked trinucleotide ends formed by the sequence d(GAATTCGCG). Biochemistry. 21(3). 451–455. 26 indexed citations

15.

Patel, Dinshaw J., Sharon A. Kozlowski, Luis A. Marky, et al.. (1982). Structure, dynamics, and energetics of deoxyguanosine-thymidine wobble base pair formation in the self-complementary d(CGTGAATTCGCG) duplex in solution. Biochemistry. 21(3). 437–444. 135 indexed citations

16.

Patel, Dinshaw J., Sharon A. Kozlowski, Chris A. Broka, et al.. (1982). Premelting and melting transitions in the d(CGCGAATTCGCG) self-complementary duplex in solution. Biochemistry. 21(3). 428–436. 161 indexed citations

17.

Drew, Horace R., Richard M. Wing, T. Takano, et al.. (1981). Structure of a B-DNA dodecamer: conformation and dynamics.. Proceedings of the National Academy of Sciences. 78(4). 2179–2183. 1250 indexed citations breakdown →

18.

Patel, Dinshaw J., Sharon A. Kozlowski, Janet A. Rice, Chris A. Broka, & Keiichi Itakura. (1981). Mutual interaction between adjacent dG . dC actinomycin binding sites and dA . dT netropsin binding sites on the self-complementary d(C-G-C-G-A-A-T-T-C-G-C-G) duplex in solution.. Proceedings of the National Academy of Sciences. 78(12). 7281–7284. 42 indexed citations

19.

Broka, Chris A., Toyoharu Hozumi, René Arentzen, & Keiichi Itakura. (1980). Simplifications in the synthesis of short oligonucleotide blocks. Nucleic Acids Research. 8(22). 5461–5472. 66 indexed citations

20.

Wing, Richard M., Horace R. Drew, Tsunehiro Takano, et al.. (1980). Crystal structure analysis of a complete turn of B-DNA. Nature. 287(5784). 755–758. 706 indexed citations breakdown →

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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