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  1. Article: Knockout of CAFFEOYL-COA 3-O-METHYLTRANSFERASE 6/6L enhances the S/G ratio of lignin monomers and disease resistance in

    Liu, Mingxin / Liu, Huayin / Zhang, Jianduo / Li, Cui / Li, Yinke / Yang, Guangyu / Xia, Tong / Huang, Haitao / Xu, Yong / Kong, Weisong / Hou, Bingzhu / Qi, Xiaoquan / Wang, Jin

    Frontiers in plant science

    2023  Volume 14, Page(s) 1216702

    Abstract: ... CAFFEOYL-COA 3-O-METHYLTRANSFERASE 6/6L can regulate the S/G ratio of lignin monomers and may affect ...

    Abstract Background: Nicotiana tabacum
    Results: Here, we annotated and screened 14
    Conclusions: CAFFEOYL-COA 3-O-METHYLTRANSFERASE 6/6L can regulate the S/G ratio of lignin monomers and may affect tobacco bacterial wilt and brown spot disease resistance by disturbing phenylpropane and terpene metabolism in leaves and roots of
    Language English
    Publishing date 2023-10-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2613694-6
    ISSN 1664-462X
    ISSN 1664-462X
    DOI 10.3389/fpls.2023.1216702
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Photocatalytic reduction of CO2 and degradation of Bisphenol-S by g-C3N4/Cu2O@Cu S-scheme heterojunction: Study on the photocatalytic performance and mechanism insight

    Dai, Benlin / Zhao, Wei / Wei, Wei / Cao, Jihui / Yang, Gang / Li, Shijie / Sun, Cheng / Leung, Dennis Y.C.

    Carbon. 2022 June 30, v. 193

    2022  

    Abstract: An efficient g-C₃N₄/Cu₂O@Cu plasmonic Step-scheme (S-scheme) heterojunction photocatalyst was ... separation of photogenerated electron-hole pairs in the S-scheme g-C₃N₄/Cu₂O@Cu heterojunction was realized ... of Bisphenol-S pollutants and catalytic reduction of CO₂ for hydrocarbon fuel production experiments under ...

    Abstract An efficient g-C₃N₄/Cu₂O@Cu plasmonic Step-scheme (S-scheme) heterojunction photocatalyst was successfully designed and used for the degradation of pollutants and energy generation. The removal of Bisphenol-S pollutants and catalytic reduction of CO₂ for hydrocarbon fuel production experiments under the visible light irradiation showed that the catalyst displayed good stability and perfect photocatalytic performance. Among the prepared samples, g-C₃N₄/Cu₂O@Cu-4 displayed the highest catalytic performance, which was attributed to the high light absorption capacity and the efficient interfacial charge separation in the S-scheme heterojunction. From the viewpoint of practical wastewater treatment, a series of the effects of environmental factors, such as initial pollutant concentration, inorganic salts, organic compounds and various water sources on the photocatalytic performance were investigated. Eight intermediate products formed in the photocatalytic oxidation of Bisphenol-S were confirmed by the GC-MS, and the proposed photocatalytic degradation pathway of Bisphenol-S was suggested according to the intermediate products. Importantly, the charge density difference of the interface between g-C₃N₄ and Cu₂O (g-C₃N₄/Cu₂O) as well as the interface between Cu and Cu₂O (Cu/Cu₂O heterostructures) was calculated, respectively. The calculated results verified that the built-in electric field had been established at their interface. Spatial separation of photogenerated electron-hole pairs in the S-scheme g-C₃N₄/Cu₂O@Cu heterojunction was realized through the built-in electric field.
    Keywords absorption ; carbon ; carbon dioxide ; electric field ; energy ; fuel production ; irradiation ; light ; oxidation ; photocatalysis ; photocatalysts ; pollutants ; wastewater treatment
    Language English
    Dates of publication 2022-0630
    Size p. 272-284.
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 0008-6223
    DOI 10.1016/j.carbon.2022.03.038
    Database NAL-Catalogue (AGRICOLA)

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  3. Article ; Online: Efficient bacterial inactivation with S-doped g-C

    Li, Juan / Yang, Ruixian / Hu, DanDan / Xu, Yanchong / Ma, Zhanqiang

    Environmental science and pollution research international

    2022  Volume 29, Issue 23, Page(s) 34637–34650

    Abstract: ... as model bacterium and the disinfection performance of prepared S-doped g-C ...

    Abstract The pathogenic bacteria in water that threatens the human health and photocatalytic disinfection have been proven to be a cost-effective and promising green technology. It is significant and necessary to develop efficient, safe, and visible light-driven photocatalysts. In this study, Escherichia coli was used as model bacterium and the disinfection performance of prepared S-doped g-C
    MeSH term(s) Bacteria ; Catalysis ; Disinfection/methods ; Escherichia coli ; Humans ; Light
    Language English
    Publishing date 2022-01-18
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1178791-0
    ISSN 1614-7499 ; 0944-1344
    ISSN (online) 1614-7499
    ISSN 0944-1344
    DOI 10.1007/s11356-021-18092-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Green Synthesis Strategy of Template-Free S-Doped g-C

    Yan, Zheng / Liu, Yang / Zhang, Leixin / Luan, Jingde / Ke, Xin

    Langmuir : the ACS journal of surfaces and colloids

    2023  Volume 39, Issue 38, Page(s) 13705–13716

    Abstract: ... free synthesis strategy of S-doped g-C ...

    Abstract Constructing a nanostructure with a high surface area and regulating the band gap by nonmetallic doping are two effective methods for improving the photocatalytic activity of catalysts. A green template-free synthesis strategy of S-doped g-C
    Language English
    Publishing date 2023-09-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.3c01935
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Synergism between chemisorption and unique electron transfer pathway in S-scheme AgI/g-C

    Shang, Yanyan / Fan, Huiqing / Yang, Xueya / Dong, Wenqiang / Wang, Weijia

    Journal of colloid and interface science

    2022  Volume 631, Issue Pt B, Page(s) 269–280

    Abstract: AgI/g-C ...

    Abstract AgI/g-C
    Language English
    Publishing date 2022-11-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 241597-5
    ISSN 1095-7103 ; 0021-9797
    ISSN (online) 1095-7103
    ISSN 0021-9797
    DOI 10.1016/j.jcis.2022.10.168
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Cyclin-dependent kinase 4 may be expressed as multiple proteins and have functions that are independent of binding to CCND and RB and occur at the S and G 2/M phases of the cell cycle.

    Sun, Yuan / Lou, Xiaomin / Yang, Min / Yuan, Chengfu / Ma, Ling / Xie, Bing-Kun / Wu, Jian-Min / Yang, Wei / Shen, Steven Xj / Xu, Ningzhi / Liao, D Joshua

    Cell cycle (Georgetown, Tex.)

    2013  Volume 12, Issue 22, Page(s) 3512–3525

    Abstract: ... could inhibit G 1-S progression, accelerate S-G 2/M progression, and enhance or delay apoptosis in a cell line ... have previously unrecognized functions at the S-G 2/M phases of the cell cycle via mechanisms ... Cyclin-dependent kinase 4 (CDK4) is known to be a 33 kD protein that drives G 1 phase progression ...

    Abstract Cyclin-dependent kinase 4 (CDK4) is known to be a 33 kD protein that drives G 1 phase progression of the cell cycle by binding to a CCND protein to phosphorylate RB proteins. Using different CDK4 antibodies in western blot, we detected 2 groups of proteins around 40 and 33 kD, respectively, in human and mouse cells; each group often appeared as a duplet or triplet of bands. Some CDK4 shRNAs could decrease the 33 kD wild-type (wt) CDK4 but increase some 40 kD proteins, whereas some other shRNAs had the opposite effects. Liquid chromatography-mass spectrometry/mass spectrometry analysis confirmed the existence of CDK4 isoforms smaller than 33 kD but failed to identify CDK4 at 40 kD. We cloned one CDK4 mRNA variant that lacks exon 2 and encodes a 26 kD protein without the first 74 amino acids of the wt CDK4, thus lacking the ATP binding sequence and the PISTVRE domain required for binding to CCND. Co-IP assay confirmed that this ΔE2 protein lost CCND1- and RB1-binding ability. Moreover, we found, surprisingly, that the wt CDK4 and the ΔE2 could inhibit G 1-S progression, accelerate S-G 2/M progression, and enhance or delay apoptosis in a cell line-specific manner in a situation where the cells were treated with a CDK4 inhibitor or the cells were serum-starved and then replenished. Hence, CDK4 seems to be expressed as multiple proteins that react differently to different CDK4 antibodies, respond differently to different shRNAs, and, in some situations, have previously unrecognized functions at the S-G 2/M phases of the cell cycle via mechanisms independent of binding to CCND and RB.
    MeSH term(s) Animals ; Apoptosis ; Cell Line ; Cyclin D1/genetics ; Cyclin D1/metabolism ; Cyclin-Dependent Kinase 4/genetics ; Cyclin-Dependent Kinase 4/metabolism ; G2 Phase Cell Cycle Checkpoints ; Humans ; Isoenzymes/genetics ; Isoenzymes/metabolism ; M Phase Cell Cycle Checkpoints ; Mice ; Mutation ; Retinoblastoma Protein/genetics ; Retinoblastoma Protein/metabolism ; S Phase Cell Cycle Checkpoints
    Chemical Substances Isoenzymes ; Retinoblastoma Protein ; Cyclin D1 (136601-57-5) ; CDK4 protein, human (EC 2.7.11.22) ; Cyclin-Dependent Kinase 4 (EC 2.7.11.22)
    Language English
    Publishing date 2013-09-24
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2146183-1
    ISSN 1551-4005 ; 1538-4101 ; 1554-8627
    ISSN (online) 1551-4005
    ISSN 1538-4101 ; 1554-8627
    DOI 10.4161/cc.26510
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Structures of the ADGRG2-G<sub>s</sub> complex in apo and ligand-bound forms.

    Lin, Hui / Xiao, Peng / Bu, Rui-Qian / Guo, Shengchao / Yang, Zhao / Yuan, Daopeng / Zhu, Zhong-Liang / Zhang, Chuan-Xin / He, Qing-Tao / Zhang, Chao / Ping, Yu-Qi / Zhao, Ru-Jia / Ma, Chuan-Shun / Liu, Chang-Hao / Zhang, Xiao-Ning / Jiang, Dan / Huang, Shaohui / Xi, Yue-Tong / Zhang, Dao-Lai /
    Xue, Chen-Yang / Yang, Bai-Sheng / Li, Jian-Yuan / Lin, Hao-Cheng / Zeng, Xu-Hui / Zhao, Han / Xu, Wen-Ming / Yi, Fan / Liu, Zhongmin / Sun, Jin-Peng / Yu, Xiao

    Nature chemical biology

    2022  Volume 18, Issue 11, Page(s) 1196–1203

    Abstract: ... membrane receptor for maintaining male fertility, in complex with a Gs trimer ... Adhesion G protein-coupled receptors are elusive in terms of their structural information and ... dehydroepiandrosterone sulfate and deoxycorticosterone as potential ligands of ADGRG2. The cryo-EM structures of DHEA-ADGRG2-G ...

    Abstract Adhesion G protein-coupled receptors are elusive in terms of their structural information and ligands. Here, we solved the cryogenic-electron microscopy (cryo-EM) structure of apo-ADGRG2, an essential membrane receptor for maintaining male fertility, in complex with a G<sub>s</sub> trimer. Whereas the formations of two kinks were determinants of the active state, identification of a potential ligand-binding pocket in ADGRG2 facilitated the screening and identification of dehydroepiandrosterone (DHEA), dehydroepiandrosterone sulfate and deoxycorticosterone as potential ligands of ADGRG2. The cryo-EM structures of DHEA-ADGRG2-G<sub>s</sub> provided interaction details for DHEA within the seven transmembrane domains of ADGRG2. Collectively, our data provide a structural basis for the activation and signaling of ADGRG2, as well as characterization of steroid hormones as ADGRG2 ligands, which might be used as useful tools for further functional studies of the orphan ADGRG2.
    MeSH term(s) Humans ; Male ; Cryoelectron Microscopy ; Dehydroepiandrosterone Sulfate ; Desoxycorticosterone ; Ligands ; Receptors, G-Protein-Coupled/chemistry ; Signal Transduction
    Chemical Substances Dehydroepiandrosterone Sulfate (57B09Q7FJR) ; Desoxycorticosterone (40GP35YQ49) ; Ligands ; Receptors, G-Protein-Coupled ; ADGRG2 protein, human
    Language English
    Publishing date 2022-08-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2202962-X
    ISSN 1552-4469 ; 1552-4450
    ISSN (online) 1552-4469
    ISSN 1552-4450
    DOI 10.1038/s41589-022-01084-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Photocatalytic performance and mechanism insights of a S-scheme g-C

    Zhen, Yanzhong / Yang, Chunming / Shen, Huidong / Xue, Wenwen / Gu, Chunrong / Feng, Jinghao / Zhang, Yuecheng / Fu, Feng / Liang, Yucang

    Physical chemistry chemical physics : PCCP

    2020  Volume 22, Issue 45, Page(s) 26278–26288

    Abstract: ... photocatalytic activity. Herein, a novel Step-scheme (S-scheme) heterojunction photocatalyst, a g-C3N4/Bi2MoO6 (g-CN/BMO ... photoelectron spectroscopy, for S-scheme heterojunction-structured g-CN/BMO-200, the internal electric field-, band edge ... This study revealed that for the S-scheme g-CN/BMO composite the internal electric field, band edge bending ...

    Abstract Photocatalysis with potentially low cost and sustainable utilization is a typically environmentally benign method for the degradation of organic pollutants, but the rational design and fabrication of photocatalysts with high catalytic performance is still an enormous challenge. The efficient segregation of photogenerated electron-hole pairs in photocatalysts is a key and essential factor to decide photocatalytic activity. Herein, a novel Step-scheme (S-scheme) heterojunction photocatalyst, a g-C3N4/Bi2MoO6 (g-CN/BMO) composite, was successfully fabricated using g-C3N4 nanosheet-wrapped Bi2MoO6 microspheres. By adjusting the amount of g-C3N4 in BMO, a series of g-CN/BMO composites was prepared while optimizing posttreatment temperature. The resulting g-CN/BMO indicated well the photocatalytic performance for the degradation of phenol and hydrogen evolution reactions, especially, 100 g of g-CN was integrated into 100 g of the pre-calcined BMO at 200 °C to produce 100% g-CN/BMO-200, showing the highest photocatalytic performance compared to single composite BMO, BMO-200, g-CN, and g-CN/BMO-200 with other mass ratios. Combining the results from the density functional theory calculations and the results of X-ray photoelectron spectroscopy, for S-scheme heterojunction-structured g-CN/BMO-200, the internal electric field-, band edge bending- and coulomb interaction-driven efficient segregation of photogenerated electrons and holes at the interface is elucidated to explain the photocatalytic mechanism, and the resulting holes on the VB of BMO and electrons on the CB of g-CN are responsible for the improvement of the photocatalytic performance. This study revealed that for the S-scheme g-CN/BMO composite the internal electric field, band edge bending and coulomb interaction at the interface between g-CN and BMO can not only promote the effective segregation of electrons and holes, but also retain stronger redox ability. Such an investigation provides a facile and simple strategy to fabricate novel S-scheme heterojunction-structured photocatalysts for solar energy conversion.
    Language English
    Publishing date 2020-11-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/d0cp02199g
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Dual and opposing roles of ERK in regulating G(1) and S-G(2)/M delays in A549 cells caused by hyperoxia.

    Ko, Jen-Chung / Wang, Yi-Ting / Yang, Jia-Ling

    Experimental cell research

    2004  Volume 297, Issue 2, Page(s) 472–483

    Abstract: This study explores the role of ERK activation in regulating G(1) and S-G(2)/M delays during ... contributes to the p53/p21-mediated G(1) checkpoint. However, inhibition of ERK signaling during hyperoxia ... further delays S-phase entry and progression. Hyperoxia induces significant expression of cyclin A/B1 and ...

    Abstract This study explores the role of ERK activation in regulating G(1) and S-G(2)/M delays during hyperoxia. We demonstrate here that exposing A549 human alveolar type 2 adenocarcinoma cells to hyperoxia (95% O(2)) for 0.5-24 h time-dependently increases phospho-ERK, phospho-p53(Ser15), p53, and p21(CIP1) protein levels. Decreasing phospho-ERK with the pharmacological inhibitors, PD98059 and U0126, markedly suppresses hyperoxia-stimulated phospho-p53(Ser15), p53, and p21(CIP1), and also restores the hyperoxia-reduced kinase activities of cyclin D1/E1-Cdks. Our results suggest that ERK activation during hyperoxia contributes to the p53/p21-mediated G(1) checkpoint. However, inhibition of ERK signaling during hyperoxia further delays S-phase entry and progression. Hyperoxia induces significant expression of cyclin A/B1 and translocation of cyclin A into nuclei while marginally decreasing cyclin A/B1-Cdks kinase activities, which may be related to nuclear association with p21. Interestingly, inhibition of ERK signaling markedly suppresses the elevation of cyclin A/B1 proteins and cyclin A/B1-Cdks kinase activities during hyperoxia. Taken together, the results presented here suggest that hyperoxia-activated ERK acts upstream of p53 and p21 to suppress G(1)-Cdk activities; however, it is also required for induction of cyclin A/B1 and maintenance of cyclin A/B1-Cdk activities that oppose delays in S-phase entry and progression.
    MeSH term(s) Adenocarcinoma/pathology ; Blotting, Western ; Cell Line, Tumor ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclin-Dependent Kinases/metabolism ; Cyclins/metabolism ; Enzyme Activation ; Flow Cytometry ; Fluorescent Antibody Technique, Indirect ; G1 Phase ; G2 Phase ; Humans ; Hyperoxia/physiopathology ; Lung Neoplasms/pathology ; Microscopy, Confocal ; Mitogen-Activated Protein Kinases/metabolism ; Models, Biological ; Precipitin Tests ; S Phase ; Tumor Suppressor Protein p53/genetics
    Chemical Substances CDKN1A protein, human ; Cyclin-Dependent Kinase Inhibitor p21 ; Cyclins ; Tumor Suppressor Protein p53 ; Cyclin-Dependent Kinases (EC 2.7.11.22) ; Mitogen-Activated Protein Kinases (EC 2.7.11.24)
    Language English
    Publishing date 2004-07-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1493-x
    ISSN 1090-2422 ; 0014-4827
    ISSN (online) 1090-2422
    ISSN 0014-4827
    DOI 10.1016/j.yexcr.2004.03.033
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: An ultrasensitive MnO2-S,O-doped g-C3N4 nanoprobe for “turn-on” detection of glutathione and cell imaging

    Chai, Chaofan / Yang, Xuefang / Yang, Xiaohua / Dong, Chuan / Bian, Wei / Choi, Martin M. F.

    Journal of materials science. 2022 Apr., v. 57, no. 16

    2022  

    Abstract: ... manganese dioxide-S, O co-doped graphitic carbon nitride quantum dots (MnO₂-S, O-CNQDs) nanocomposite ... by in situ synthesis of MnO₂ nanosheets in S,O-CNQDs dispersion solution. It was found that GSH ... could specifically bind to MnO₂-S, O-CNQDs so that the fluorescence of S, O-CNQDs could be recovered ...

    Abstract The utilization of nanomaterial-based probes in detecting glutathione (GSH) and cell imaging has aroused extensive attention owing to the excellent properties of nanoprobes. Herein, we have synthesized manganese dioxide-S, O co-doped graphitic carbon nitride quantum dots (MnO₂-S, O-CNQDs) nanocomposite by in situ synthesis of MnO₂ nanosheets in S,O-CNQDs dispersion solution. It was found that GSH could specifically bind to MnO₂-S, O-CNQDs so that the fluorescence of S, O-CNQDs could be recovered. As such, a “turn-on” MnO₂-S, O-CNQDs nanoprobe can be fabricated and applied to rapidly determine trace amounts of GSH. Under the optimal conditions, MnO₂-S, O-CNQDs shows sensitive response to GSH in the range 10–270 μM with a detection limit of 0.307 μM (S/N = 3). The developed MnO₂-S, O-CNQDs probe has demonstrated great potential to detection of GSH in biological samples and glutathione injections. What is more, MTT assay indicates that MnO₂-S, O-CNQDs has low biotoxicity. The non-fluorescence MnO₂-S, O-CNQDs reacts with GSH to recover the fluorescence of S, O-CNQDs in HepG2 cells. Thus, the “turn-on” fluorescence change of MnO₂-S, O-CNQDs offers a potentially useful tool to monitor GSH of cancer cells.
    Keywords carbon nitride ; detection limit ; fluorescence ; glutathione ; graphene ; manganese ; nanocomposites ; nanosheets ; toxicity testing
    Language English
    Dates of publication 2022-04
    Size p. 7909-7922.
    Publishing place Springer US
    Document type Article
    ZDB-ID 2015305-3
    ISSN 1573-4803 ; 0022-2461
    ISSN (online) 1573-4803
    ISSN 0022-2461
    DOI 10.1007/s10853-022-07160-5
    Database NAL-Catalogue (AGRICOLA)

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