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Articles 1 - 4 of 4
Full-Text Articles in Chemicals and Drugs
5¢-O-B,G-Methylenetriphosphate Derivatives Of Nucleoside, Yousef Ahmadibeni, Chandravanu Dash, S. F. J. Le Grice, Keykavous Parang
5¢-O-B,G-Methylenetriphosphate Derivatives Of Nucleoside, Yousef Ahmadibeni, Chandravanu Dash, S. F. J. Le Grice, Keykavous Parang
Pharmacy Faculty Articles and Research
The solid-phase synthesis of 5¢-O-b,g-methylenetriphosphates of nucleosides 1–5 is described, where a 4-acetoxy-3-arylbenzyloxy group was used as a linker.
Synthesis And Evaluation Of Conformationally Constrained Peptide Analogues As The Src Sh3 Domain Binding Ligands, Rakesh Tiwari, Alex Brown, Seetha Narramaneni, Gongqin Sun, Keykavous Parang
Synthesis And Evaluation Of Conformationally Constrained Peptide Analogues As The Src Sh3 Domain Binding Ligands, Rakesh Tiwari, Alex Brown, Seetha Narramaneni, Gongqin Sun, Keykavous Parang
Pharmacy Faculty Articles and Research
Src kinase activity is regulated by the interaction of SH3 domain with protein sequences that are rich in proline residues. Identification of more potent SH3 domain binding ligands that can regulate Src kinase activity is a subject of major interest. Conformationally constrained peptides have been previously used for improving the binding potency of the Src SH2 domain binding peptide ligands and peptide substrates of the substrate-binding site of Src. A series of peptide analogues of Ac-VSLARRPLPPLP (1, Ac-VSL-12, Kd = 0.34 M) were synthesized by introducing conformational constraints to improve the binding affinity towards the Src SH3 domain. Peptides synthesized …
Prospects And Pits On The Path Of Biomimetics: The Case Of Tooth Enamel, Vuk Uskoković
Prospects And Pits On The Path Of Biomimetics: The Case Of Tooth Enamel, Vuk Uskoković
Pharmacy Faculty Articles and Research
This review presents a discourse on challenges in understanding and imitating the process of amelogenesis in vitro on the molecular scale. In light of the analysis of imitation of the growth of dental enamel, it also impends on the prospects and potential drawbacks of the biomimetic approach in general. As the formation of enamel proceeds with the protein matrix guiding the crystal growth, while at the same time conducting its own degradation and removal, it is argued that three aspects of amelogenesis need to be induced in parallel: a) crystal growth; b) protein assembly; c) proteolytic degradation. A particular emphasis …
Synthesis, Antiviral And Contraceptive Activities Of Nucleoside-Sodium Cellulose Sulfate Acetate And Succinate Conjugates, Hitesh K. Agarwal, Anil Kumar, Gustavo F. Doncel, Keykavous Parang
Synthesis, Antiviral And Contraceptive Activities Of Nucleoside-Sodium Cellulose Sulfate Acetate And Succinate Conjugates, Hitesh K. Agarwal, Anil Kumar, Gustavo F. Doncel, Keykavous Parang
Pharmacy Faculty Articles and Research
Chemical conjugates between sodium cellulose sulfate (CS), displaying contraceptive and HIV-entry inhibiting properties, and nucleoside reverse transcriptase inhibitors (NRTIs) (3′-azido-2′,3′-dideoxythymidine (AZT), 3′-fluoro-2′,3′-dideoxythymidine (FLT), or 2',3'-dideoxy-3'-thiacytidine (3TC)) were designed to simultaneously provide contraceptive and anti-HIV activity. Two linkers, acetate and succinate, were used to conjugate the nucleoside analogs with CS. The conjugates containing cellulose sulfate-acetate (CSA) (e.g., AZT-CSA and FLT-CSA) were found to be more potent than CS and other conjugates (e.g., AZT-succinate-CS, and FLT-succinate-CS). The presence of both sulfate and the acetate groups on cellulose were critical for generating maximum anti-HIV activity. In addition to showing equal potency against wild-type …