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  1. Book: Ying han zi dong hua ci hui

    Zheng, Dazhong

    2010  

    Title variant Ying-han zidonghua cihui ; An Englisch-Chinese dictionary of automation
    Author's details Zheng da zhong bian
    Language Chinese ; English
    Size 872 S
    Publisher Qing hua da xue chu ban she
    Publishing place Bei jing
    Document type Book
    ISBN 9787302213734 ; 7302213739
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  2. Article ; Online: Supramolecular Click Chemistry for Surface Modification of Quantum Dots Mediated by Cucurbit[7]uril.

    McGuire, Katie / He, Suhang / Gracie, Jennifer / Bryson, Charlotte / Zheng, Dazhong / Clark, Alasdair W / Koehnke, Jesko / France, David J / Nau, Werner M / Lee, Tung-Chun / Peveler, William J

    ACS nano

    2023  Volume 17, Issue 21, Page(s) 21585–21594

    Abstract: Cucurbiturils (CBs), barrel-shaped macrocyclic molecules, are capable of self-assembling at the surface of nanomaterials in their native state, via their carbonyl-ringed portals. However, the symmetrical two-portal structure typically leads to aggregated ...

    Abstract Cucurbiturils (CBs), barrel-shaped macrocyclic molecules, are capable of self-assembling at the surface of nanomaterials in their native state, via their carbonyl-ringed portals. However, the symmetrical two-portal structure typically leads to aggregated nanomaterials. We demonstrate that fluorescent quantum dot (QD) aggregates linked with CBs can be broken-up, retaining CBs adsorbed at their surface, via inclusion of guests in the CB cavity. Simultaneously, the QD surface is modified by a functional tail on the guest, thus the high affinity host-guest binding (log
    Language English
    Publishing date 2023-11-03
    Publishing country United States
    Document type Journal Article
    ISSN 1936-086X
    ISSN (online) 1936-086X
    DOI 10.1021/acsnano.3c06601
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Unusual peptide-binding proteins guide pyrroloindoline alkaloid formation in crocagin biosynthesis.

    Adam, Sebastian / Zheng, Dazhong / Klein, Andreas / Volz, Carsten / Mullen, William / Shirran, Sally L / Smith, Brian O / Kalinina, Olga V / Müller, Rolf / Koehnke, Jesko

    Nature chemistry

    2023  Volume 15, Issue 4, Page(s) 560–568

    Abstract: Ribosomally synthesized and post-translationally modified peptide natural products have provided many highly unusual scaffolds. This includes the intriguing alkaloids crocagins, which possess a tetracyclic core structure and whose biosynthesis has ... ...

    Abstract Ribosomally synthesized and post-translationally modified peptide natural products have provided many highly unusual scaffolds. This includes the intriguing alkaloids crocagins, which possess a tetracyclic core structure and whose biosynthesis has remained enigmatic. Here we use in vitro experiments to demonstrate that three proteins, CgnB, CgnC and CgnE, are sufficient for the production of the hallmark tetracyclic crocagin core from the precursor peptide CgnA. The crystal structures of the homologues CgnB and CgnE reveal them to be the founding members of a peptide-binding protein family and allow us to rationalize their distinct functions. We further show that the hydrolase CgnD liberates the crocagin core scaffold, which is subsequently N-methylated by CgnL. These insights allow us to propose a biosynthetic scheme for crocagins. Bioinformatic analyses based on these data led to the discovery of related biosynthetic pathways that may provide access to a structurally diverse family of peptide-derived pyrroloindoline alkaloids.
    MeSH term(s) Protein Binding ; Proteins/chemistry ; Proteins/metabolism ; Alkaloids/chemistry ; Alkaloids/metabolism ; Peptides, Cyclic/chemistry ; Peptides, Cyclic/metabolism ; Zinc/chemistry ; Zinc/metabolism ; Protein Multimerization ; Models, Molecular ; Protein Structure, Tertiary ; Protein Structure, Quaternary ; Biocatalysis
    Chemical Substances Proteins ; pyrroloindolizine (81384-50-1) ; Alkaloids ; Peptides, Cyclic ; Zinc (J41CSQ7QDS)
    Language English
    Publishing date 2023-03-09
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2464596-5
    ISSN 1755-4349 ; 1755-4330
    ISSN (online) 1755-4349
    ISSN 1755-4330
    DOI 10.1038/s41557-023-01153-w
    Database MEDical Literature Analysis and Retrieval System OnLINE

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