Results 51 to 60 of about 3,513,162 (340)

Radiocarbon dates and stable isotope data for human and animal skeletal remains from a passage grave in Kierzkowo, Poland (Late Neolithic and modern period)

open access: yesData in Brief, 2022
This dataset is comprised of paired radiocarbon (14C) dates, and carbon (δ13C) and nitrogen (δ15N) stable isotope ratios received for skeletal remains of 18 humans and 6 animals.
Łukasz Pospieszny, Szymon Nowaczyk
doaj   +1 more source

Smaller is better: nanobodies meet NMR

open access: yesFEBS Letters, EarlyView.
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley   +1 more source

Isotope Mass Spectrometry and Inductively Coupled Plasma Mass Spectrometry in Honey Authentication

open access: yesТехника и технология пищевых производств
Honey is a popular product and one of the most faked foods in the world. Current authentication methods remain rather ineffective. In this study, isotope radio mass spectrometry (IRMS) and inductively coupled plasma mass spectrometry (ICP-MS) made it ...
Oganesyants Lev   +3 more
doaj   +1 more source

Culinary diversity in early modern Brazil revealed by residue analysis of ceramic artefactsCulinary diversity in early modern Brazil revealed by residue analysis of ceramic artefacts [PDF]

open access: yesRoyal Society Open Science
Brazil is a multi-cultural and ethnically diverse country shaped by a complex history of colonization, migration, slavery and economic intensification that has transformed it into one of the world's leading food-producing regions.
Alice Di Muro   +15 more
doaj   +1 more source

Invisible but not inaccessible—Revealing transient oligomers formed by intrinsically disordered proteins with solution NMR and complementary methods

open access: yesFEBS Letters, EarlyView.
Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
wiley   +1 more source

Research Advance of Chlorine Isotope Analytical Techniques

open access: yesJournal of Isotopes
Chlorine is widely distributed in nature as a major and minor constituent in natural water bodies and salt deposits. The isotopic composition of chlorine serves as a key tracer for understanding the cycling processes of chlorine,and has been extensively ...
Xiangzhe ZENG   +3 more
doaj   +1 more source

An efficient method for the production of isotopically enriched cholesterol for NMR[S]

open access: yesJournal of Lipid Research, 2011
13C-Cholesterol was produced with high efficiency by a genetically engineered yeast strain. The method produces ∼1 mg of cholesterol per gram of glucose using 100 ml of culture medium.
Rupali Shivapurkar   +3 more
doaj   +1 more source

Identifying metabolites with integer decomposition techniques, using only their mass spectrometric isotope patterns [PDF]

open access: yes, 2007
Böcker S, Letzel M, Lipták Z, Pervukhin A. Identifying metabolites with integer decomposition techniques, using only their mass spectrometric isotope patterns.
Lipták, Zsuzsanna   +3 more
core  

Differential Mobility Spectrometry-Mass Spectrometry (DMS-MS) for Uranium Ion Prefiltration to Improve Isotope Ratio Analysis [PDF]

open access: yes, 2020
We demonstrate chemical noise filtration by differential mobility spectrometry (DMS) ahead of an ion trap mass analyzer. Use of DMS enables 10x improved accuracy in the isotope ratio measurement made for a sample of natural ...
Jacob T., Shelley   +3 more
core   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

open access: yesFEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana   +5 more
wiley   +1 more source

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