Results 41 to 50 of about 54,813 (313)

Incomplete Wood-Ljungdahl pathway facilitates one-carbon metabolism in organohalide-respiring Dehalococcoides mccartyi. [PDF]

open access: yes, 2014
The acetyl-CoA "Wood-Ljungdahl" pathway couples the folate-mediated one-carbon (C1) metabolism to either CO2 reduction or acetate oxidation via acetyl-CoA.
Alvarez-Cohen, Lisa   +8 more
core   +1 more source

Isotope label-aided mass spectrometry reveals the influence of environmental factors on metabolism in single eggs of fruit fly. [PDF]

open access: yesPLoS ONE, 2012
In order to investigate the influence of light/dark cycle on the biosynthesis of metabolites during oogenesis, here we demonstrate a simple experimental protocol which combines in-vivo isotopic labeling of primary metabolites with mass spectrometric ...
Te-Wei Tseng   +3 more
doaj   +1 more source

De Novo Synthesis of Bacteriochlorins Bearing Four Trideuteriomethyl Groups

open access: yesOrganics, 2022
Site-specific introduction of isotopes in tetrapyrrole macrocycles provides the foundation for probing physicochemical features germane to photosynthetic energy-transduction processes, but has chiefly been done with porphyrins rather than the more ...
Haoyu Jing   +3 more
doaj   +1 more source

Comparison of LFQ and IPTL for Protein Identification and Relative Quantification

open access: yesMolecules, 2021
(1) Background: Mass spectrometry-based quantitative proteome profiling is most commonly performed by label-free quantification (LFQ), stable isotopic labeling with amino acids in cell culture (SILAC), and reporter ion-based isobaric labeling methods ...
Christina Johannsen   +2 more
doaj   +1 more source

Isotope Labeling in Insect Cells [PDF]

open access: yes, 2011
Recent years have seen remarkable progress in applying nuclear magnetic resonance (NMR) spectroscopy to proteins that have traditionally been difficult to study due to issues with folding, posttranslational modification, and expression levels or combinations thereof. In particular, insect cells have proved useful in allowing large quantities of isotope-
Krishna, Saxena   +3 more
openaire   +2 more sources

Espectroscopia de Ressonância Magnética Nuclear de 13C no estudo de rotas biossintéticas de produtos naturais 13C Nuclear Magnetic Resonance spectroscopy in the studies of biosythetic routes of natural products

open access: yesQuímica Nova, 2007
During the last five decades, as a result of an interaction between natural product chemistry, synthetic organic chemistry, molecular biology and spectroscopy, scientists reached an extraordinary level of comprehension about the natural processes by ...
Fernando César de Macedo Júnior
doaj   +1 more source

isotopic labelling [PDF]

open access: yes, 2014
Citation: 'isotopic labelling' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03345 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

In or Out of Equilibrium? How Microbial Activity Controls the Oxygen Isotopic Composition of Phosphate in Forest Organic Horizons With Low and High Phosphorus Availability

open access: yesFrontiers in Environmental Science, 2020
While there are estimates of the abiotic processes contribution to soil phosphorus (P) availability, less is known about the contribution of biological processes.
Chiara Pistocchi   +7 more
doaj   +1 more source

Refilling meridians in a genus 2 handlebody complement [PDF]

open access: yes, 2008
Suppose a genus two handlebody is removed from a 3-manifold M and then a single meridian of the handlebody is restored. The result is a knot or link complement in M and it is natural to ask whether geometric properties of the link complement say ...
Scharlemann, Martin
core   +3 more sources

Mycorrhiza governs plant-plant interactions through preferential allocation of shared nutritional resources: A triple (13C, 15N and 33P) labeling study

open access: yesFrontiers in Plant Science, 2022
Plant-plant interactions and coexistence can be directly mediated by symbiotic arbuscular mycorrhizal (AM) fungi through asymmetric resource exchange between the plant and fungal partners.
Maede Faghihinia   +2 more
doaj   +1 more source

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