Results 11 to 20 of about 40,055 (282)

Plant Polyamines [PDF]

open access: yesPlants, 2020
Polyamines are small organic compounds found in all living organisms. According to the high degree of positive charge at physiological pH, they interact with negatively charged macromolecules, such as DNA, RNA, and proteins, and modulate their activities.
Taku Takahashi
doaj   +8 more sources

Polyamines in Food [PDF]

open access: yesFrontiers in Nutrition, 2019
The polyamines spermine, spermidine, and putrescine are involved in various biological processes, notably in cell proliferation and differentiation, and also have antioxidant properties.
Nelly C. Muñoz-Esparza   +15 more
doaj   +7 more sources

Polyamines directly promote antizyme-mediated degradation of ornithine decarboxylase by the proteasome [PDF]

open access: yesMicrobial Cell, 2015
Ornithine decarboxylase (ODC), a ubiquitin-independent substrate of the proteasome, is a homodimeric protein with a rate-limiting function in polyamine biosynthesis.
R. Roshini Beenukumar   +3 more
doaj   +2 more sources

Role of Polyamines in Asthma Pathophysiology [PDF]

open access: yesMedical Sciences, 2018
Asthma is a complex disease of airways, where the interactions of immune and structural cells result in disease outcomes with airway remodeling and airway hyper-responsiveness.
Vaibhav Jain
doaj   +2 more sources

Putrescine alleviates cold injury in peach fruit via elevating the conjugated polyamines in tonoplast and thereby maintaining vacuole conformation [PDF]

open access: yesHorticultural Science
Exogenous polyamines can elevate postharvest fruit cold resistance and alleviate cold injury. However, the mechanism, by which polyamines mediate cold tolerance, is still to be explored.
Huaipan Liu, Dongxiao Liu
doaj   +2 more sources

Helical polyamines [PDF]

open access: yesChemical Science
The first report on isotactic poly(propylene imine) and its stereoblock copolymers prepared by living anionic polymerization.
Daniël Hagedoorn   +6 more
openaire   +5 more sources

Polyamines and apoptosis [PDF]

open access: yesJournal of Cellular and Molecular Medicine, 2005
The natural polyamines putrescine, spermidine and spermine are in multiple ways involved in cell growth and the maintenance of cell viability. In the course of the last 15 years more and more evidence hinted also at roles in gene regulation. It is therefore not surprising that the polyamines are involved in events inherent to genetically programmed ...
Nikolaus, Seiler, Francis, Raul
openaire   +2 more sources

Polyamines in Plant Biotechnology, Food Nutrition and Human Health [PDF]

open access: yes, 2020
Polyamines (PAs) are low-molecular-mass organic polycations derived from amino acids. Structurally, PAs are aliphatic chains containing two or more amine groups.

core   +1 more source

Polyamines as potential cancer markers in urine and blood. [PDF]

open access: yes, 2021
Neoplastic diseases are the leading causes of death after cardiovascular diseases in the world. Therefore, an early cancer diagnosis is essential for cancer patients to have the best chances for successful treatment and improve the quality of life.
Kassymov, Nurassyl
core  

Nucleosome destabilization by polyamines [PDF]

open access: yes, 2022
The roles and molecular interactions of polyamines (PAs) in the nucleus are not fully understood. Here their effect on nucleosome stability, a key regulatory factor in eukaryotic gene control, is reported, as measured in agarose embedded nuclei of H2B ...
Bosire, Rosevalentine   +11 more
core   +1 more source

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