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  1. Article: Physiological Psychology: No. V.

    Dunn, Robert

    Journal of psychological medicine and mental pathology (London, England : 1848)

    2017  Volume 11, Issue 10, Page(s) 317–335

    Language English
    Publishing date 2017-09-14
    Publishing country England
    Document type Journal Article
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Biphilic Organophosphorus Catalysis: Regioselective Reductive Transposition of Allylic Bromides via P(III)/P(V) Redox Cycling.

    Reichl, Kyle D / Dunn, Nicole L / Fastuca, Nicholas J / Radosevich, Alexander T

    Journal of the American Chemical Society

    2015  Volume 137, Issue 16, Page(s) 5292–5295

    Abstract: ... P(V) redox catalytic cycle. These results broaden the growing repertoire of reactions catalyzed ... within the P(III)/P(V) redox couple and suggest additional opportunities for organophosphorus catalysis ...

    Abstract We report that a regioselective reductive transposition of primary allylic bromides is catalyzed by a biphilic organophosphorus (phosphetane) catalyst. Spectroscopic evidence supports the formation of a pentacoordinate (σ(5)-P) hydridophosphorane as a key reactive intermediate. Kinetics experiments and computational modeling are consistent with a unimolecular decomposition of the σ(5)-P hydridophosphorane via a concerted cyclic transition structure that delivers the observed allylic transposition and completes a novel P(III)/P(V) redox catalytic cycle. These results broaden the growing repertoire of reactions catalyzed within the P(III)/P(V) redox couple and suggest additional opportunities for organophosphorus catalysis in a biphilic mode.
    MeSH term(s) Allyl Compounds/chemistry ; Bromides/chemistry ; Catalysis ; Organophosphorus Compounds/chemistry ; Oxidation-Reduction ; Phosphorus/chemistry ; Stereoisomerism
    Chemical Substances Allyl Compounds ; Bromides ; Organophosphorus Compounds ; Phosphorus (27YLU75U4W) ; allyl bromide (FXQ8X2F74Z)
    Language English
    Publishing date 2015-04-29
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.5b01899
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  3. Article ; Online: Antisense transcripts of V(D)J rearrangements; artifacts caused by false priming?

    Zhao, Yuan / Dunn-Walters, Deborah K / Barone, Francesca / Spencer, Jo

    Molecular immunology

    2009  Volume 46, Issue 11-12, Page(s) 2357–2362

    Abstract: Somatic hypermutation (SH) of V(D)J rearrangements at the IGH and IGL loci diversifies the IG ... that bidirectional transcription across V(D)J rearrangements occurs in activated and quiescent B cells and that it is ...

    Abstract Somatic hypermutation (SH) of V(D)J rearrangements at the IGH and IGL loci diversifies the IG repertoire during the germinal center response. SH is absolutely dependent on the enzyme activation induced cytidine deaminase (AID) that initiates the SH process by deaminating C nucleotides in ssDNA. Mutations from G and C are thought to occur as a result of strand symmetrical deamination of C by AID on the coding and non-coding strands respectively. Mutations from A and T are introduced in a strand biased way during error prone repair of the AID induced lesion. SH is linked to transcription and it has been proposed that bidirectional transcription across V(D)J rearrangements occurs in activated and quiescent B cells and that it is co-opted to facilitate the accessibility of the two DNA strands by regulating accessibility of single stranded DNA to AID. We have developed a quantitative method to study directional transcription. Our method controls for differences in efficiency and specificity of reverse transcription that are known to be able to generate false positive data. This method does not detect antisense transcripts in exonic or intronic regions within the hypermutation domain of the spontaneously hypermutating cell line Ramos, or in human blood B cells or tonsil cells, providing convincing evidence that antisense transcripts are rare or absent in human B cells.
    MeSH term(s) Artifacts ; B-Lymphocytes/immunology ; B-Lymphocytes/metabolism ; Cell Line ; Exons ; False Positive Reactions ; Gene Rearrangement, B-Lymphocyte, Heavy Chain ; Gene Rearrangement, B-Lymphocyte, Light Chain ; Humans ; Immunoglobulin Heavy Chains/genetics ; Immunoglobulin Light Chains/genetics ; Palatine Tonsil/cytology ; Palatine Tonsil/metabolism ; Polymerase Chain Reaction/methods ; RNA Splicing ; RNA, Antisense/genetics ; Somatic Hypermutation, Immunoglobulin ; Transcription, Genetic
    Chemical Substances Immunoglobulin Heavy Chains ; Immunoglobulin Light Chains ; RNA, Antisense
    Language English
    Publishing date 2009-04-28
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 424427-8
    ISSN 1872-9142 ; 0161-5890
    ISSN (online) 1872-9142
    ISSN 0161-5890
    DOI 10.1016/j.molimm.2009.03.020
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  4. Article ; Online: Main group redox catalysis: reversible P(III)/P(V) redox cycling at a phosphorus platform.

    Dunn, Nicole L / Ha, Minji / Radosevich, Alexander T

    Journal of the American Chemical Society

    2012  Volume 134, Issue 28, Page(s) 11330–11333

    Abstract: ... P(III)/P(V)) enabling its use as catalyst for a transfer hydrogenation reaction. The trivalent ...

    Abstract A planar, trivalent phosphorus compound is shown to undergo reversible two-electron redox cycling (P(III)/P(V)) enabling its use as catalyst for a transfer hydrogenation reaction. The trivalent phosphorus compound activates ammonia-borane to furnish a 10-P-5 dihydridophosphorane, which in turn is shown to transfer hydrogen cleanly to azobenzene, yielding diphenylhydrazine and regenerating the initial trivalent phosphorus species. This result constitutes a rare example of two-electron redox catalysis at a main group compound and suggests broader potential for this nonmetal platform to support bond-modifying redox catalysis of the type dominated by transition metal catalysts.
    Language English
    Publishing date 2012-07-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/ja302963p
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  5. Article: Dynamics of the unbound head during myosin V processive translocation.

    Dunn, Alexander R / Spudich, James A

    Nature structural & molecular biology

    2007  Volume 14, Issue 3, Page(s) 246–248

    Abstract: Myosin V moves cargoes along actin filaments by walking hand over hand. Although numerous studies ... nanoparticle-labeled myosin V to directly observe the free head as it releases from the actin filament ...

    Abstract Myosin V moves cargoes along actin filaments by walking hand over hand. Although numerous studies support the basic hand-over-hand model, little is known about the fleeting intermediate that occurs when the rear head detaches from the filament. Here we use submillisecond dark-field imaging of gold nanoparticle-labeled myosin V to directly observe the free head as it releases from the actin filament, diffuses forward and rebinds. We find that the unbound head rotates freely about the lever-arm junction, a trait that likely facilitates travel through crowded actin meshworks.
    MeSH term(s) Animals ; Chickens ; Models, Biological ; Myosin Type V/chemistry ; Myosin Type V/metabolism ; Protein Conformation ; Protein Transport ; Time Factors
    Chemical Substances Myosin Type V (EC 3.6.1.-)
    Language English
    Publishing date 2007-03
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2126708-X
    ISSN 1545-9985 ; 1545-9993
    ISSN (online) 1545-9985
    ISSN 1545-9993
    DOI 10.1038/nsmb1206
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  6. Article ; Online: In AF, underdosing of DOACs was not linked to reduced bleeding.

    Dunn, Andrew

    Annals of internal medicine

    2023  Volume 176, Issue 3, Page(s) JC32

    Abstract: Source citation: Caso V, de Groot JR, Sanmartin Fernandez M, et al. ...

    Abstract Source citation: Caso V, de Groot JR, Sanmartin Fernandez M, et al.
    MeSH term(s) Humans ; Anticoagulants/adverse effects ; Stroke ; Administration, Oral ; Hemorrhage/chemically induced ; Atrial Fibrillation/complications ; Atrial Fibrillation/drug therapy
    Chemical Substances Anticoagulants
    Language English
    Publishing date 2023-03-07
    Publishing country United States
    Document type Systematic Review ; Meta-Analysis ; Journal Article ; Comment
    ZDB-ID 336-0
    ISSN 1539-3704 ; 0003-4819
    ISSN (online) 1539-3704
    ISSN 0003-4819
    DOI 10.7326/J23-0010
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  7. Article: Dentistry's daddy. The story of G. V. Black.

    Dunn, M

    Dentistry (American Student Dental Association)

    1999  Volume 19, Issue 2, Page(s) 8–9

    MeSH term(s) Dentistry, Operative/history ; History, 19th Century ; History, 20th Century ; United States
    Language English
    Publishing date 1999-11-03
    Publishing country United States
    Document type Biography ; Historical Article ; Journal Article ; Portrait
    ZDB-ID 1068063-9
    ISSN 0277-3635
    ISSN 0277-3635
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  8. Book ; Conference proceedings: Sol-gel optics V

    Dunn, Bruce S

    (SPIE proceedings series ; 3943)

    2000  

    Institution Sol Gel Optics Conference
    Event/congress Sol-Gel Optics Conference (5, 2000.01.26-28, SanJoseCalif.)
    Author's details [Sol-Gel Optics V Conference], 26 - 28 January 2000, San Jose, California. Sponsored and publ. by SPIE, the International Society for Optical Engineering. Bruce S. Dunn ..., chairs/ed
    Series title SPIE proceedings series ; 3943
    Language English
    Size IX, 316 S
    Publisher SPIE
    Publishing place Bellingham, Wash
    Document type Book ; Conference proceedings
    ISBN 0819435600 ; 9780819435606
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  9. Article: Prescription data mining, medical privacy and the First Amendment: the U.S. Supreme Court in Sorrell v. IMS health Inc.

    Boumil, Marcia M / Dunn, Kaitlyn / Ryan, Nancy / Clearwater, Katrina

    Annals of health law

    2012  Volume 21, Issue 2, Page(s) 447–91, 4 p preceding i

    Abstract: In 2011, the United States Supreme Court in Sorrell v. IMS Health Inc. struck down a Vermont law ...

    Abstract In 2011, the United States Supreme Court in Sorrell v. IMS Health Inc. struck down a Vermont law that would restrict the ability of pharmaceutical companies to purchase certain physician-identifiable prescription data without the consent of the prescriber. The law's stated purpose was threefold: to protect the privacy of medical information, to protect the public health and to contain healthcare costs by promoting Vermont's preference in having physicians prescribe more generic drugs. The issue before the Supreme Court was whether the Vermont law represented a legitimate, common sense regulatory program or a bold attempt to suppress commercial speech when the "message" is disfavored by the state. Striking down the law, the Supreme Court applied a heightened level of First Amendment scrutiny to this commercial transaction and held that the Vermont law was not narrowly tailored to protect legitimate privacy interests.
    MeSH term(s) Advertising as Topic/legislation & jurisprudence ; Confidentiality/legislation & jurisprudence ; Data Mining/legislation & jurisprudence ; Drug Prescriptions ; Humans ; Supreme Court Decisions ; United States
    Language English
    Publishing date 2012
    Publishing country United States
    Document type Journal Article ; Legal Cases
    ZDB-ID 1169895-0
    ISSN 1075-2994
    ISSN 1075-2994
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  10. Article: Studies of Spotting Patterns. V. Further Analysis of Minor Spotting Genes in the House Mouse.

    Dunn, L C

    Genetics

    2007  Volume 27, Issue 2, Page(s) 258–267

    Language English
    Publishing date 2007-01-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2167-2
    ISSN 1943-2631 ; 0016-6731
    ISSN (online) 1943-2631
    ISSN 0016-6731
    DOI 10.1093/genetics/27.2.258
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