Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Larissa V. Ponomareva"'
Autor:
Maira Saleem, Ashba Hassan, Feina Li, Qinpei Lu, Larissa V. Ponomareva, Sean Parkin, Chenghang Sun, Jon S. Thorson, Khaled A. Shaaban, Imran Sajid
Publikováno v:
BMC Microbiology, Vol 23, Iss 1, Pp 1-16 (2023)
Abstract Background Bioprospecting of actinobacteria isolated from Kubuqi desert, China for antibacterial, antifungal and cytotoxic metabolites production and their structure elucidation. Results A total of 100 actinobacteria strains were selectively
Externí odkaz:
https://doaj.org/article/e1065cc76b89435886e6734bcbb29a22
Autor:
Essam M. Eliwa, Marcel Frese, Ahmed H. Halawa, Maha M. Soltan, Larissa V. Ponomareva, Jon S. Thorson, Khaled A. Shaaban, Mohamed Shaaban, Ahmed M. El-Agrody, Norbert Sewald
Publikováno v:
Green Chemistry Letters and Reviews, Vol 14, Iss 4, Pp 578-599 (2021)
A metal-free, atom-economy and simple work-up domino amination-Knoevenagel condensation approach to construct new coumarin analogous (4a-f and 8a-e) was described. Further, new formyl (5a,d-f) and nitro (9a,d-f) coumarin derivatives were synthesized
Externí odkaz:
https://doaj.org/article/2cd3c5861be14fbdbc55a65a6e87fd94
Autor:
Manar M. Mahmoud, Ahmed S. Abdel-Razek, Hesham S.M. Soliman, Larissa V. Ponomareva, Jon S. Thorson, Khaled A. Shaaban, Mohamed Shaaban
Publikováno v:
Biotechnology Reports, Vol 33, Iss , Pp e00628- (2022)
We report the isolation and characterization of five polyketides [alternariol (1), alternariol-9-methyl ether (2), altertoxin I (3), altertoxin II (4) and tenuazonic acid (5)] from the marine endophytic Alternaria sp. LV52 derived from Cystoseira tam
Externí odkaz:
https://doaj.org/article/16b2073081d048f1a1fdf5d636055949
Autor:
S. Randal Voss, Jeramiah J. Smith, Raissa F. Cecil, Mirindi Kabangu, Timothy J. Duerr, James R. Monaghan, Nataliya Timoshevskaya, Larissa V. Ponomareva, Jon S. Thorson, Alan Veliz-Cuba, David Murrugarra
Publikováno v:
Frontiers in Cell and Developmental Biology, Vol 9 (2021)
New patterns of gene expression are enacted and regulated during tissue regeneration. Histone deacetylases (HDACs) regulate gene expression by removing acetylated lysine residues from histones and proteins that function directly or indirectly in tran
Externí odkaz:
https://doaj.org/article/465281b56b2b49afb7282e7ef27af686
Autor:
Rongbin, Wang, Jennifer, Nguyen, Jacob, Hecht, Nora, Schwartz, Katelyn V, Brown, Larissa V, Ponomareva, Magdalena, Niemczura, Dino, van Dissel, Gilles P, van Wezel, Jon S, Thorson, Mikko, Metsä-Ketelä, Khaled A, Shaaban, S Eric, Nybo
Publikováno v:
ACS synthetic biology. 11(12)
Actinomycetes produce a variety of clinically indispensable molecules, such as antineoplastic anthracyclines. However, the actinomycetes are hindered in their further development as genetically engineered hosts for the synthesis of new anthracycline
Autor:
Qing-Bai She, Mohsin Tassawar Cheema, Jon S. Thorson, Yongyong Zhang, Larissa V. Ponomareva, Jürgen Rohr, S. Randal Voss, Imran Sajid, Qing Ye, Khaled A. Shaaban, Tao Liu
Publikováno v:
Journal of Natural Products. 84:1930-1940
Himalaquinones A-G, seven new anthraquinone-derived metabolites, were obtained from the Himalayan-based Streptomyces sp. PU-MM59. The chemical structures of the new compounds were identified based on cumulative analyses of HRESIMS and NMR spectra. Hi
Autor:
Tao Liu, Khaled A. Shaaban, Mohsin Tassawar Cheema, Jon S. Thorson, Imran Sajid, S. Randal Voss, Larissa V. Ponomareva
Publikováno v:
Current Microbiology. 78:3044-3057
Actinobacteria have proven themselves as the major producers of bioactive compounds with wide applications. In this study, 35 actinobacteria strains were isolated from soil samples collected from the Himalayan mountains region in Pakistan. The isolat
Autor:
Marcel Frese, Ahmed Halawa, Larissa V. Ponomareva, Mohamed Shaaban, Maha M. Soltan, Khaled A. Shaaban, Ahmed M. El-Agrody, Norbert Sewald, Essam M. Eliwa, Jon S. Thorson
Publikováno v:
Green Chemistry Letters and Reviews, Vol 14, Iss 4, Pp 578-599 (2021)
A metal-free, atom-economy and simple work-up domino amination-Knoevenagel condensation approach to construct new coumarin analogous (4a-f and 8a-e) was described. Further, new formyl (5a,d-f) and nitro (9a,d-f) coumarin derivatives were synthesized
Autor:
Ahmed S. Abdel-Razek, Hesham S. M. Soliman, Khaled A. Shaaban, Mohamed Shaaban, Larissa V. Ponomareva, Manar M. Mahmoud, Jon S. Thorson
Publikováno v:
Biotechnology Reports, Vol 33, Iss, Pp e00628-(2022)
Biotechnology Reports
Biotechnology Reports
Highlights • Isolation and characterization of five polyketides 1–5 from the marine endophytic Alternaria sp. LV52 derived from Cystoseira tamariscifolia. • The chemical structures of compounds 1–5 were identified by extensive 1D, 2D NMR, and
Autor:
S. Randal Voss, Varun B. Dwaraka, Jon S. Thorson, Larissa V. Ponomareva, Nour W. Al Haj Baddar
Publikováno v:
Developmental Dynamics. 250:852-865
Background Histone deacetylases (HDACs) regulate transcriptional responses to injury stimuli that are critical for successful tissue regeneration. Previously we showed that HDAC inhibitor romidepsin potently inhibits axolotl tail regeneration when ap