Results 91 to 100 of about 68,807 (327)
Herein we describe NMR experiments and structural modifications of 4-methyl-2-phenylpyrimidine-N-acylhydrazone compounds (aryl-NAH) in order to discover if duplication of some signals in their 1H- and 13C-NMR spectra was related to a mixture of imine ...
Alexandra Basilio Lopes+5 more
doaj +1 more source
The first characterized antifungal in the orotomide class is olorofim. It targets the de novo pyrimidine biosynthesis pathway by inhibiting dihydroorotate dehydrogenase (DHODH).
Saskia du Pré+7 more
doaj +1 more source
Solution of the Crow-Kimura and Eigen models for alphabets of arbitrary size by Schwinger spin coherent states [PDF]
To represent the evolution of nucleic acid and protein sequence, we express the parallel and Eigen models for molecular evolution in terms of a functional integral representation with an $h$-letter alphabet, lifting the two-state, purine/pyrimidine assumption often made in quasi-species theory. For arbitrary $h$ and a general mutation scheme, we obtain
arxiv +1 more source
Pyrimidine biosynthesis in Pseudomonas veronii and its regulation by pyrimidines
Pyrimidine biosynthesis in the nutritionally versatile bacterium Pseudomonas veronii ATCC 700474 appeared to be controlled by pyrimidines. When wild type cells were grown on glucose in the presence of uracil, four enzyme activities were depressed while all five enzyme activities increased in succinate-grown cells supplemented with uracil.
openaire +3 more sources
A cytotoxic survey on 2‐amino‐1H‐imidazol based synthetic marine sponge alkaloid analogues
Abstract Here, we describe the synthesis and biologic activity evaluation of 20 novel synthetic marine sponge alkaloid analogues with 2‐amino‐1H‐imidazol (2‐AI) core. Cytotoxicity was tested on murine 4T1 breast cancer, A549 human lung cancer, and HL‐60 human myeloid leukemia cells by the resazurin assay.
Nikolett Gémes+10 more
wiley +1 more source
ABSTRACT Schizophrenia is a neurodevelopmental psychiatric disorder characterized by symptoms of psychosis, thought disorder, and flattened affect. Immune mechanisms are associated with schizophrenia, though the precise nature of this relationship (causal, correlated, consequential) and the mechanisms involved are not fully understood.
David Stacey+6 more
wiley +1 more source
Parallel Synthesis of 2-Substituted 6-(5-Oxo-1-phenylpyrrolidin-3-yl)pyrimidine-5-carboxamides
A library of 24 6-(5-oxo-1-phenylpyrrolidin-3-yl)pyrimidine-5-carboxamides <strong>10</strong>{<em>1</em>,<em>2</em>; <em>1–12</em>} was prepared by a parallel solution-phase approach.
Branko Stanovnik+6 more
doaj +1 more source
RESEARCHES ON PYRIMIDINES. XCI. ALKYLATION OF 2-MERCAPTO-PYRIMIDINES.
n ...
openaire +3 more sources
Metabolic alterations in human pulmonary artery smooth muscle cells treated with PDGF‐BB
Metabolic abnormalities are considered to play a key regulatory role in vascular remodeling of pulmonary arterial hypertension. We analyzed the metabolome in the culture supernatants of human pulmonary artery smooth muscle cells (PASMC) during the malignant proliferation phenotype transition via a targeted metabolomics method. Significant and extensive
Meng‐Jie Zhang+9 more
wiley +1 more source
Deoxyribonucleotide Triphosphate Metabolism in Cancer and Metabolic Disease
The maintenance of a healthy deoxyribonucleotide triphosphate (dNTP) pool is critical for the proper replication and repair of both nuclear and mitochondrial DNA.
Raquel Buj, Katherine M. Aird
doaj +1 more source