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Showing 1 to 12 of 1342 entries
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A Structure-Activity Relationship for the Hydrolysis of Acetylamino Acids by Porcine Aminoacylase.

Bioorganic chemistry

Denton P.
PMID: 11034782
Bioorg Chem. 2000 Aug;28(4):205-213. doi: 10.1006/bioo.2000.1177.

A structure-activity relationship is presented that satisfactorily predicts the rates of hydrolysis of a series of acetylglycine derivatives by porcine aminoacylase. It is apparent that the substrate specificity of aminoacylase is mainly kinetic in origin, the observed correlation with...

Evidence for a 1,2 Shift of a Hydrogen Atom in a Radical Intermediate of the Methylmalonyl-CoA Mutase Reaction.

Bioorganic chemistry

Kunz M, Rétey J.
PMID: 10915551
Bioorg Chem. 2000 Jun;28(3):134-139. doi: 10.1006/bioo.2000.1165.

An excellent substrate of methylmalonyl-CoA mutase, methylmalonyl-carba-(dethia) coenzyme A (methylmalonyl-CH(2)-CoA), was synthesized by a chemoenzymatic method and its alpha-proton was exchanged with deuterium by long-term incubation in deuterium oxide at pH 6.9. After addition of highly purified epimerase-free methylmalonyl-CoA...

Carbonyl J Derivatives: A New Class of HIV-1 Integrase Inhibitors.

Bioorganic chemistry

Maurer K, Tang AH, Kenyon GL, Leavitt AD.
PMID: 10915552
Bioorg Chem. 2000 Jun;28(3):140-155. doi: 10.1006/bioo.2000.1166.

Integration of a DNA copy of the HIV-1 genome is required for viral replication and pathogenicity, and this highly specific molecular process is mediated by the virus-encoded integrase protein. The requirement for integration, combined with the lack of a...

Different Activities of 5-Hydroxy-dUMP and 5-Hydroxymethyl-dUMP in Thymidylate Synthase-Catalyzed Reaction in View of Molecular Modeling and Structural Studies.

Bioorganic chemistry

Jarmula A, Leś A, Rode W.
PMID: 10915553
Bioorg Chem. 2000 Jun;28(3):156-162. doi: 10.1006/bioo.2000.1172.

In order to explain different activities shown by 5-hydroxy-dUMP (substrate) and its close analogue 5-hydroxymethyl-dUMP (slow-binding inhibitor) in the reaction catalyzed by thymidylate synthase, studies have been undertaken involving (i) ab initio RHF simulations, (ii) comparative analysis of crystallographic...

Introduction.

Bioorganic chemistry

Benkovic SJ, Kenyon GL.
PMID: 11352468
Bioorg Chem. 2000 Dec;28(6):315. doi: 10.1006/bioo.2001.1198.

No abstract available.

The Unexpected Catalytic Properties of a Heterodimer of GAR Transformylase.

Bioorganic chemistry

Liu C, Shim JH, Benkovic SJ.
PMID: 11352469
Bioorg Chem. 2000 Dec;28(6):316-23. doi: 10.1006/bioo.2000.1186.

We have developed an efficient expression and purification protocol for a heterodimer of glycinamide ribonucleotide transformylase that was identified in incremental truncation libraries, a general combinatorial method for protein fragment complementation (M. Ostermeier, A. E. Nixon, J. H. Shim,...

Rational design of pyrrolo.

Bioorganic chemistry

Huang X, Suleman A, Skibo EB.
PMID: 11352470
Bioorg Chem. 2000 Dec;28(6):324-37. doi: 10.1006/bioo.2000.1183.

Models have been developed for the interaction of the pyrrolo[1,2-a]benzimidazole (PBI) antitumor agents with the two-electron activating enzyme DT-diaphorase and the DNA major groove. The DT-diaphorase model and experimental results indicate that the S-enantiomer of 3-carbamido PBI can enantioselect...

Analysis of claims of enhanced enzyme catalysis by inorganic colloidosomes.

Bioorganic chemistry

Kluger R.
PMID: 23886373
Bioorg Chem. 2013 Aug;49:59-60. doi: 10.1016/j.bioorg.2013.06.004. Epub 2013 Jun 20.

Ester hydrolysis reactions in the presence of enzymes have been reported to occur within inorganic colloidsomes that contain water in organic solvents. Analysis of reported data plots that were used to obtain values for Km and Vmax that led...

Discovery of the PARP (poly ADP-ribose polymerase) inhibitor 2-(1-(4,4-difluorocyclohexyl)piperidin-4-yl)-1H-benzo[d]imidazole-4-carboxamide for the treatment of cancer.

Bioorganic chemistry

Tang L, Wu W, Zhang C, Shi Z, Chen D, Zhai X, Jiang Y.
PMID: 34186467
Bioorg Chem. 2021 Sep;114:105026. doi: 10.1016/j.bioorg.2021.105026. Epub 2021 May 26.

In this work, two series of cyclic amine-containing benzimidazole carboxamide derivatives were designed and synthesized as potent anticancer agents. PARP1/2 inhibitory activity assays indicated that most of the compounds showed significant activity. The in vitro antiproliferative activity of these...

Computational studies and sever apoptotic bioactivity of new heterocyclic cyanoacrylamide based p-fluorophenyl and p-phenolic compounds against liver carcinoma (Hepg2).

Bioorganic chemistry

Mohamed MF, Saddiq AA, Al-Shaikh TM, Ibrahim NS, Abdelhamid IA.
PMID: 34246114
Bioorg Chem. 2021 Sep;114:105147. doi: 10.1016/j.bioorg.2021.105147. Epub 2021 Jul 05.

An efficient route for the preparation of new heterocyclic cyanoacrylamides based p-fluorophenyl and p-phenolic compounds was depicted. All structures were confirmed based on the different spectral tools and elemental analyses. MTT assay for the novel synthesized series was performed...

New pyrimidine and pyrazole-based compounds as potential EGFR inhibitors: Synthesis, anticancer, antimicrobial evaluation and computational studies.

Bioorganic chemistry

Othman IMM, Alamshany ZM, Tashkandi NY, Gad-Elkareem MAM, Anwar MM, Nossier ES.
PMID: 34161878
Bioorg Chem. 2021 Sep;114:105078. doi: 10.1016/j.bioorg.2021.105078. Epub 2021 Jun 10.

This study was focused on the synthesis of new pyrimidines 4a,b, 5a,b and pyrazoles 6a, b as ATP mimicking tyrosine kinase inhibitors of the epidermal growth factor receptor (EGFR). The new compounds were assessed as cytotoxic candidates against human...

Design, synthesis, and biological evaluation of hydroxamic acid-substituted 2,4-diaryl aminopyrimidines as potent EGFRT790M/L858R inhibitors for the treatment of NSCLC.

Bioorganic chemistry

Chen L, Zhang Y, Wang C, Tang Z, Meng Q, Sun H, Qi Y, Ma X, Li L, Li Y, Xu Y.
PMID: 34161879
Bioorg Chem. 2021 Sep;114:105045. doi: 10.1016/j.bioorg.2021.105045. Epub 2021 May 31.

A series of 2,4-diarylaminopyrimidine derivatives bearing hydrophilic hydroxamic acids were designed and synthesized as potent EGFR

Showing 1 to 12 of 1342 entries