Results 31 to 40 of about 35,273 (228)

Multi-Temperature Crystallography of Polyamine Biosynthesis Enzymes Reveals Differing Active Site Conformations at RT than 100K [PDF]

Structural Dynamics
The polyamine biosynthetic pathway synthesizes the polyamines putrescine, spermidine, and spermine from ornithine and S-adenosyl methionine. These polyamines are important molecules in metabolism and are associated with growth and proliferation of cells ...
Jonathan A Clinger
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Determinants of the differential antizyme-binding affinity of ornithine decarboxylase. [PDF]

PLoS ONE, 2011
Ornithine decarboxylase (ODC) is a ubiquitous enzyme that is conserved in all species from bacteria to humans. Mammalian ODC is degraded by the proteasome in a ubiquitin-independent manner by direct binding to the antizyme (AZ).
Yen-Chin Liu, Den-Hua Hsu, Chi-Liang Huang, Yi-Liang Liu, Guang-Yaw Liu, Hui-Chih Hung   +5 more
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Melatonin treatment induces chilling tolerance by regulating the contents of polyamine, γ-aminobutyric acid, and proline in cucumber fruit

Journal of Integrative Agriculture, 2021
The mechanism of melatonin (MT) induced chilling tolerance in harvested cucumber fruit was investigated at commercial maturity. In this study, cucumber fruits were treated with 100 µmol L–1 MT at 4°C and 90% relative humidity for 15 d of storage.
Miilion P MADEBO, Si-ming LUO, Li WANG, Yong-hua ZHENG, Peng JIN   +4 more
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Putrescine Biosynthesis Inhibition in Tomato by DFMA and DFMO Treatment

Bio-Protocol, 2016
This protocol can be used to inhibit the biosynthesis of polyamines, specifically putrescine, in tomato plants grown with NH4+ as a solely N source. In general, polyamines are positively charged small metabolites implicated in physiological processes ...
Emma Fernández-Crespo, Ana González-Hernández, Loredana Scalschi, Eugenio Llorens, Pilar García-Agustín, Gemma Camañes   +5 more
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Hydroxylamine Analogue of Agmatine: Magic Bullet for Arginine Decarboxylase

Biomolecules, 2020
The biogenic polyamines, spermine, spermidine (Spd) and putrescine (Put) are present at micro-millimolar concentrations in eukaryotic and prokaryotic cells (many prokaryotes have no spermine), participating in the regulation of cellular proliferation and
Mervi T. Hyvönen, Tuomo A. Keinänen, Gulgina K. Nuraeva, Dmitry V. Yanvarev, Maxim Khomutov, Elena N. Khurs, Sergey N. Kochetkov, Jouko Vepsäläinen, Alexander A. Zhgun, Alex R. Khomutov   +9 more
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Regulation of Ornithine Decarboxylase [PDF]

Journal of Biological Chemistry, 2006
Ornithine decarboxylase (ODC) initiates the polyamine biosynthetic pathway. The amount of ODC is altered in response to many growth factors, oncogenes, and tumor promoters and to changes in polyamine levels. Susceptibility to tumor development is increased in transgenic mice expressing high levels of ODC and is decreased in mice with reduced ODC due to
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Decreased sensitivity to aspirin is associated with altered polyamine metabolism in human prostate cancer cells [PDF]

, 2015
Acknowledgments We thank NHS Grampian for financial support of this work.Peer reviewedPublisher ...
Cameron, Gary A., Li, Jun, Wallace, Heather M.   +2 more
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Assay of Ornithine Decarboxylase and Spermidine/Spermine N1-acetyltransferase Activities

Bio-Protocol, 2014
The polyamines, spermidine (Spd) and spermine, and their diamine precursor putrescine, are important regulators of various cellular functions, such as proliferation and differentiation.
Mervi Hyvönen, Tuomo Keinänen, Leena Alhonen   +2 more
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Characterization of the Entamoeba histolytica ornithine decarboxylase-like enzyme. [PDF]

PLoS Neglected Tropical Diseases, 2008
BACKGROUND: The polyamines putrescine, spermidine, and spermine are organic cations that are required for cell growth and differentiation. Ornithine decarboxylase (ODC), the first and rate-limiting enzyme in the polyamine biosynthetic pathway, is a ...
Anupam Jhingran, Prasad K Padmanabhan, Sushma Singh, Krishanpal Anamika, Abhijeet A Bakre, Sudha Bhattacharya, Alok Bhattacharya, Narayanaswamy Srinivasan, Rentala Madhubala   +8 more
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Metabolism within the tumor microenvironment and its implication on cancer progression: an ongoing therapeutic target [PDF]

, 2018
Since reprogramming energy metabolism is considered a new hallmark of cancer, tumor metabolism is again in the spotlight of cancer research. Many studies have been carried out and many possible therapies have been developed in the last years.
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