The protein composition of the liver chromatin has been studied by two techniques for fractionation of histones. The "lability" fraction of histones H2A-H2B is revealed. In these fractions histones H2B have many modified forms and they are not included into octamer (H3, H4, H2A, H2B)2. Young animals rather than old ones have much quantitative subfractions of histone H2B. The "lability" fraction of histones H2A-H2B is stated to be very significant in the activated and repressed chromatin structure.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Evaluating the bioavailability of rare earth elements in paddy soils and their uptake in rice grains for human health risk.
Environ Geochem Health
January 2025
Department of Agricultural Chemistry, National Taiwan University, Taipei, 10617, Taiwan.
Rare earth elements (REEs) are a critical global focus due to their increasing use, raising concerns about their environmental distribution and human exposure, both vital to food safety and human health. Surface soil (0-30 cm) and corresponding rice grain samples (n = 85) were collected from paddy fields in Taiwan. This study investigated the total REE contents in soil through aqua regia digestion, as well as their labile forms extracted using 0.
View Article and Find Full Text PDFCharacterization of Phytoplankton-Derived Amino Acids and Tracing the Source of Organic Carbon Using Stable Isotopes in the Amundsen Sea.
Mar Drugs
October 2024
Division of Ocean and Atmosphere Sciences, Korea Polar Research Institute (KOPRI), Incheon 21990, Republic of Korea.
Article Synopsis
- * The carbon isotope ratios indicated that both particulate and dissolved organic matter mainly come from phytoplankton and melting sea ice, highlighting the meltwater's role in organic carbon supply.
- * Our findings showed a strong relationship between organic matter quality and its isotopic signatures, suggesting that variations in phytoplankton types influence carbon cycling and microbial activity in the region.
Soil carbon sequestration potential of different land use systems: evidence from sub-humid southern plains and Aravalli hills of Rajasthan, India.
Environ Monit Assess
October 2024
ICAR-Directorate of Rapeseed-Mustard Research, Sewar, Bharatpur, 321303, Rajasthan, India.
Article Synopsis
- The study analyzed total soil organic carbon (TOC) and carbon management across six different land use systems in Rajasthan, India, highlighting the impact of these systems on carbon storage and economic value.
- Forest land (FL) showed the highest levels of TOC and carbon management index, while barren land (BL) had the lowest, indicating significant differences in carbon stocks among the land use systems.
- The findings suggest promoting practices that restore barren and agricultural lands to horticultural or agri-horticultural systems can enhance soil carbon storage and increase economic benefits from carbon credits.
Role of Source, Mineralogy, and Organic Complexation on Lability and Fe Isotopic Composition of Terrestrial Fe sources to the Gulf of Alaska.
ACS Earth Space Chem
August 2024
Department of Marine, Earth and Atmospheric Sciences, North Carolina State University, Raleigh, North Carolina 27695, United States.
Iron (Fe) is a key trace nutrient supporting marine primary production, and its deposition in the surface ocean can impact multiple biogeochemical cycles. Understanding Fe cycling in the subarctic is key for tracking the fate of particulate-bound sources of oceans in a changing climate. Recently, Fe isotope ratios have been proposed as a potential tool to trace sources of Fe to the marine environment.
View Article and Find Full Text PDFCopper dynamics in vineyard topsoils as affected by the supply of aerated compost tea: Insights from a batch experiment.
Environ Pollut
September 2024
ISPA, Bordeaux Sciences Agro, INRAE, 33140, Villenave d'Ornon, France.
Aerated compost teas (ACTs) are rich in soluble humic substances (SHS) that have high affinity for metals, notably Cu. Using a batch experiment, we measured the extent to which two ACTs altered Cu dynamics in vineyard topsoils one day and 21 days after their addition. Soils were extracted with 0.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!