Richard Needleman

6.5k total citations
117 papers, 5.8k citations indexed

About

Richard Needleman is a scholar working on Cellular and Molecular Neuroscience, Molecular Biology and Spectroscopy. According to data from OpenAlex, Richard Needleman has authored 117 papers receiving a total of 5.8k indexed citations (citations by other indexed papers that have themselves been cited), including 85 papers in Cellular and Molecular Neuroscience, 75 papers in Molecular Biology and 26 papers in Spectroscopy. Recurrent topics in Richard Needleman's work include Photoreceptor and optogenetics research (84 papers), Neuroscience and Neuropharmacology Research (73 papers) and Photosynthetic Processes and Mechanisms (21 papers). Richard Needleman is often cited by papers focused on Photoreceptor and optogenetics research (84 papers), Neuroscience and Neuropharmacology Research (73 papers) and Photosynthetic Processes and Mechanisms (21 papers). Richard Needleman collaborates with scholars based in United States, Japan and Hungary. Richard Needleman's co-authors include Janos Κ. Lanyi, Leonid S. Brown, Akio Maeda, György Váró, Jun Sasaki, Hideki Kandori, Corinne A. Michels, Baofu Ni, Hans-Thomas Richter and Man Chang and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of the American Chemical Society.

In The Last Decade

Richard Needleman

117 papers receiving 5.6k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Richard Needleman United States	47	4.4k	3.8k	821	640	304	117	5.8k
Brigitte Schobert United States	23	3.1k 0.7×	2.8k 0.7×	475 0.6×	315 0.5×	317 1.0×	42	4.4k
Martin Engelhard Germany	40	3.6k 0.8×	3.3k 0.9×	618 0.8×	506 0.8×	296 1.0×	117	5.0k
Roberto A. Bogomolni United States	35	5.0k 1.2×	4.0k 1.0×	816 1.0×	737 1.2×	443 1.5×	74	6.8k
Tsutomu Kouyama Japan	32	2.1k 0.5×	2.5k 0.7×	316 0.4×	383 0.6×	184 0.6×	87	4.4k
Akio Maeda Japan	33	2.4k 0.6×	2.1k 0.6×	404 0.5×	182 0.3×	161 0.5×	106	3.3k
Maarten P. Heyn Germany	39	3.5k 0.8×	3.3k 0.9×	786 1.0×	315 0.5×	279 0.9×	101	4.8k
George P. Hess United States	41	1.9k 0.4×	4.7k 1.2×	793 1.0×	193 0.3×	76 0.3×	183	6.6k
James B. Ames United States	42	2.9k 0.7×	4.3k 1.1×	444 0.5×	126 0.2×	118 0.4×	139	6.1k
Jörg Tittor Germany	28	2.6k 0.6×	1.9k 0.5×	499 0.6×	311 0.5×	261 0.9×	44	3.2k
Ernest B. Campbell United States	16	2.7k 0.6×	6.1k 1.6×	461 0.6×	298 0.5×	36 0.1×	18	7.2k

Countries citing papers authored by Richard Needleman

Since Specialization

Citations

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

Fields of papers citing papers by Richard Needleman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Richard Needleman

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

Grier, Robert E., et al.. (2013). Amino Acids as biomarkers in the SOD1G93A mouse model of ALS. Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease. 1842(1). 79–87. 14 indexed citations

Liu, Ming, W S Brusilow, & Richard Needleman. (2004). Activity of the yeast Tat2p tryptophan permease is sensitive to the anti-tumor agent 4-phenylbutyrate. Current Genetics. 46(5). 256–268. 10 indexed citations

Rouhani, Shahab, Jean‐Philippe Cartailler, Marc T. Facciotti, et al.. (2001). Crystal structure of the D85S mutant of bacteriorhodopsin: model of an O-like photocycle intermediate. Journal of Molecular Biology. 313(3). 615–628. 86 indexed citations

Yamaguchi, Shuhei, Satoru Tuzi, Akira Naito, et al.. (2001). Surface Dynamics of Bacteriorhodopsin as Revealed by 13C NMR Studies on [13C]Ala-Labeled Proteins: Detection of Millisecond or Microsecond Motions in Interhelical Loops and C-Terminal -Helix. The Journal of Biochemistry. 129(3). 373–382. 21 indexed citations

Tanio, Michikazu, Satoru Tuzi, Satoru Yamaguchi, et al.. (1999). Conformational Changes of Bacteriorhodopsin along the Proton-Conduction Chain as Studied with 13C NMR of [3-13C]Ala-Labeled Protein: Arg82 May Function as an Information Mediator. Biophysical Journal. 77(3). 1577–1584. 21 indexed citations

Tanio, Michikazu, Satoru Tuzi, Richard Needleman, et al.. (1999). Long-Distance Effects of Site-Directed Mutations on Backbone Conformation in Bacteriorhodopsin from Solid State NMR of [1-13C]Val-Labeled Proteins. Biophysical Journal. 77(1). 431–442. 23 indexed citations

Váró, György, Richard Needleman, & Janos Κ. Lanyi. (1996). Protein structural change at the cytoplasmic surface as the cause of cooperativity in the bacteriorhodopsin photocycle. Biophysical Journal. 70(1). 461–467. 47 indexed citations

Rayfield, G. W., et al.. (1996). Reversal of the surface charge asymmetry in purple membrane due to single amino acid substitutions. Biophysical Journal. 70(5). 2358–2365. 12 indexed citations

Váró, György, Leonid S. Brown, Jun Sasaki, et al.. (1995). Light-Driven Chloride Ion Transport by Halorhodopsin from Natronobacterium pharaonis. I. The Photochemical Cycle. Biochemistry. 34(44). 14490–14499. 88 indexed citations

10.

Váró, György, László Zimányi, Xiaoning Fan, et al.. (1995). Photocycle of halorhodopsin from Halobacterium salinarium. Biophysical Journal. 68(5). 2062–2072. 85 indexed citations

11.

Brown, Leonid S., Jun Sasaki, Hideki Kandori, et al.. (1995). Glutamic Acid 204 is the Terminal Proton Release Group at the Extracellular Surface of Bacteriorhodopsin. Journal of Biological Chemistry. 270(45). 27122–27126. 217 indexed citations

12.

Friedman, Nir, S. Druckmann, Janos Κ. Lanyi, et al.. (1994). A Covalent Link between the Chromophore and the Protein Backbone of Bacteriorhodopsin Is Not Required for Forming a Photochemically Active Pigment Analogous to the Wild Type. Biochemistry. 33(8). 1971–1976. 15 indexed citations

13.

Brown, Leonid S., Y. Gat, Mordechai Sheves, et al.. (1994). The Retinal Schiff Base-Counterion Complex of Bacteriorhodopsin: Changed Geometry during the Photocycle Is a Cause of Proton Transfer to Aspartate 85. Biochemistry. 33(40). 12001–12011. 49 indexed citations

14.

Brown, Leonid S., et al.. (1994). The Proton Transfers in the Cytoplasmic Domain of Bacteriorhodopsin are Facilitated by a Cluster of Interacting Residues. Journal of Molecular Biology. 239(3). 401–414. 69 indexed citations

15.

Cao, Yi, Leonid S. Brown, Richard Needleman, & Janos Κ. Lanyi. (1993). Relationship of proton uptake on the cytoplasmic surface and reisomerization of the retinal in the bacteriorhodopsin photocycle: An attempt to understand the complex kinetics of the pH changes and the N and O intermediates. Biochemistry. 32(38). 10239–10248. 68 indexed citations

16.

Váró, György, László Zimányi, Mi Chang, et al.. (1992). A residue substitution near the beta-ionone ring of the retinal affects the M substates of bacteriorhodopsin. Biophysical Journal. 61(3). 820–826. 25 indexed citations

17.

Druckmann, S., Noga Friedman, Janos Κ. Lanyi, et al.. (1992). The back photoreaction of the M intermediate in the photocycle of bacteriorhodopsin: mechanism and evidence for two M species. Photochemistry and Photobiology. 56(6). 1041–1047. 50 indexed citations

18.

Maeda, Akio, Jun Sasaki, Yoshinori Shichida, et al.. (1992). Structures of aspartic acid-96 in the L and N intermediates of bacteriorhodopsin: analysis by Fourier transform infrared spectroscopy. Biochemistry. 31(19). 4684–4690. 76 indexed citations

19.

Cao, Yi, György Váró, Man Chang, et al.. (1991). Water is required for proton transfer from aspartate-96 to the bacteriorhodopsin Schiff base. Biochemistry. 30(45). 10972–10979. 179 indexed citations

20.

Ni, Baofu, Man Chang, Albert Duschl, Janos Κ. Lanyi, & Richard Needleman. (1990). An efficient system for the synthesis of bacteriorhodopsin in Halobacterium halobium. Gene. 90(1). 169–172. 106 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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