Results 41 to 50 of about 955,121 (302)

The Prevalence of Carbon-13 in Respiratory Carbon Dioxide As an Indicator of the Type of Endogenous Substrate. The change from lipid to carbohydrate during the respiratory rise in potato slices [PDF]

, 1970
Isotope discrimination is a common feature of biosynthesis in nature, with the result that different classes of carbon compounds frequently display different 13C/12C ratios.
Epstein, Samuel, Jacobson, Bruce S., Laties, George G., Smith, Bruce N.   +3 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Rastreabilidade de subprodutos de origem animal em dietas com levedura e trigo para frangos Traceability of animal byproducts in diets containing yeast and wheat meal for broilers

Pesquisa Agropecuária Brasileira, 2008
O objetivo deste trabalho foi rastrear a inclussão de farinhas de origem animal em rações para frango de corte com ou sem levedura de cana-de-açúcar e farelo de trigo, por meio da análise do músculo peitoral das aves pelas técnicas dos isótopos estáveis ...
Rosana Gottmann, Antonio Celso Pezzato, Carlos Ducatti, Juliana Célia Denadai, Cleusa Móri, Mariela Akie Okino Mituo, José Roberto Sartori   +6 more
doaj   +1 more source

Hyperpolarized [2–13C]pyruvate MR molecular imaging with whole brain coverage

NeuroImage, 2023
Hyperpolarized (HP) 13C Magnetic Resonance Imaging (MRI) was applied for the first time to image and quantify the uptake and metabolism of [2–13C]pyruvate in the human brain to provide new metabolic information on cerebral energy metabolism.
Brian T. Chung, Yaewon Kim, Jeremy W. Gordon, Hsin-Yu Chen, Adam W. Autry, Philip M. Lee, Jasmine Y. Hu, Chou T. Tan, Chris Suszczynski, Susan M. Chang, Javier E. Villanueva-Meyer, Robert A. Bok, Peder E.Z. Larson, Duan Xu, Yan Li, Daniel B. Vigneron   +15 more
doaj   +1 more source

High resolution quantum sensing with shaped control pulses

, 2017
We investigate the application of amplitude-shaped control pulses for enhancing the time and frequency resolution of multipulse quantum sensing sequences.
Boss, J. M., Chang, K., Cujia, K. S., Degen, C. L., Itoh, K. M., Sasaki, K., Segawa, T. F., Zopes, J.   +7 more
core   +1 more source

Experimental Implementation of Remote State Preparation by Nuclear Magnetic Resonance [PDF]

, 2002
We have experimentally implemented remote state preparation (RSP) of a qubit from a hydrogen to a carbon nucleus in molecules of carbon-13 labeled chloroform $^{13}$CHCl$_{3}$ over interatomic distances using liquid-state nuclear magnetic resonance (NMR)
Bennett, Bennett, Boschi, Bouwmeester, Brassard, Chuang, Cummins, Du, Ernst, Jones, Kelin Gao, Knill, Lo, Maili Liu, Mang Feng, Nielsen, Pati, Peng, Sharf, Wootters, Ximing Fang, Xinhua Peng, Xiwen Zhu   +22 more
core   +3 more sources

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Competition and coexistence of bond and charge orders in (TMTTF)2AsF6

, 2002
(TMTTF)2AsF6 undergoes two phase transitions upon cooling from 300 K. At Tco=103 K a charge-ordering (CO) occurs, and at Tsp(B=9 T)=11 K the material undergoes a spin-Peierls (SP) transition.
A. Baur, B. Alavi, C. A. Merlic, D. Jerome, D.S. Chow, F. Mila, F. Nad, F. Zamborszky, G. Mihaly, H. Seo, H. Wilhelm, J.M. Tranquada, J.P. Pouget, K. Miyagawa, L.D. Vescoli, P. Monceau, P. Roth, R. Laversanne, S. E. Brown, S. Mazumdar, S. Mori, S.E. Brown, S.E. Brown, T. Acachi, T.W. Hijmans, V.J. Emery, W. Raas, W. Yu, Y. Fagot-Revurat   +28 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Fluorometabolite biosynthesis : isotopically labelled glycerol incorporations into the antibiotic nucleocidin in Streptomyces calvus [PDF]

, 2017
Deuterium and carbon-13 labelled glycerols have been fed to Streptomyces calvus fermentations and isotope incorporation into the fluorine containing antibiotic nucleocidin have been evaluated by 19F-NMR. A single deuterium atom was incorporated from [2H5]
Bartholomé, Axel, Janso, Jeffrey E., O'Hagan, David, Reilly, Usa   +3 more
core   +1 more source