Results 31 to 40 of about 498,738 (286)

Characterization of methionine oxidation and methionine sulfoxide reduction using methionine-rich cysteine-free proteins [PDF]

BMC Biochemistry, 2012
Abstract Background Methionine (Met) residues in proteins can be readily oxidized by reactive oxygen species to Met sulfoxide (MetO). MetO is a promising physiological marker of oxidative stress and its inefficient repair by MetO reductases (Msrs) has been linked to neurodegeneration and aging. Conventional methods of
Liang, Xinwen, Kaya, Alaattin, Zhang, Yan, Le, Dung T, Hua, Deame, Gladyshev, Vadim   +5 more
openaire   +3 more sources

Methionine metabolism, functions, and application in swine

Animal Nutrition
Methionine (Met) is the only sulfur-containing essential amino acid for animals and is the second or third limiting amino acid in swine diets. It plays a role not only in protein synthesis, but also as an important methyl donor to participate in various ...
Mengliao Wan, Yulong Yin, Yehui Duan, Jiashun Chen   +3 more
doaj   +1 more source

Broiler Responses to Reduced Protein and Energy Diets Supplemented With Lysine, Methionine and Threonine

The Journal of Poultry Science, 2012
This study was performed to evaluate the effect of supplementation of low crude protein (CP) corn-soybean meal diets which contained low ME levels with lysine (Lys), methionine (Met) and threonine (Thr) above that recommended by the National Research ...
A. Abudabos, R. Aljumaah
doaj   +1 more source

Kinetics and mechanism of the oxidation of methionine by quinolinium chlorochromate [PDF]

Journal of the Serbian Chemical Society, 2005
The oxidation of methionine by quinolinium chlorochromate (QCC) has been studied, in the presence of chloroacetic acid, and in water-acetic acid mixtures of varying mole fractions. The reaction is first order with respect to methionine, QCC and acid. The
Pandeeswaran M., Bincy John, Bhuvaneshwari D.S., Elango K.P.   +3 more
doaj   +1 more source

Methionine 129 variant of human prion protein oligomerizes more rapidly than the valine 129 variant - Implications for disease susceptibility to Creutzfeldt-Jakob disease [PDF]

, 2004
The human PrP gene (PRNP) has two common alleles that encode either methionine or valine at codon 129. This polymorphism modulates disease susceptibility and phenotype of human transmissible spongiform encyphalopathies, but the molecular mechanism by ...
Abdessamad Tahiri-Alaoui, Andrew C. Gill, Petra Disterer, William James, Prusiner, Weissmann, Will, Bruce, Hill, Prusiner, Prusiner, Collinge, Windl, Palmer, Brown, Baker, Cervenakova, Parchi, Hill, Collinge, Hauw, Goldfarb, Goldfarb, Dlouhy, Dermaut, Croes, Liemann, Riek, Alonso, Baskakov, Jackson, Baskakov, Gill, Lu, Lu, Landon, Safar, Bessen, Zahn, Riek, Nguyen, Tahiri-Alaoui, Santini, Wong, Wildegger, Matouschek, Vendruscolo, Kim, Fasman, Baskakov, Qin, Oesch, Conway, Sayer, Rhie, Schatzl, Mead   +56 more
core   +1 more source

Methionine sulfoxide reductase contributes to meeting dietary methionine requirements [PDF]

Archives of Biochemistry and Biophysics, 2012
Methionine sulfoxide reductases are present in all aerobic organisms. They contribute to antioxidant defenses by reducing methionine sulfoxide in proteins back to methionine. However, the actual in vivo roles of these reductases are not well defined.
Hang, Zhao, Geumsoo, Kim, Rodney L, Levine   +2 more
openaire   +2 more sources

Farinha de resíduos da filetagem de tilápia em rações para alevinos de piauçu (Leporinus macrocephalus) Effects of feeding tilapia by-products flour for piauçu (Leporinus macrocephalus) fingerlings

Revista Brasileira de Zootecnia, 2005
Este experimento foi realizado com o objetivo de avaliar o efeito da inclusão de farinha de resíduos da industrialização de tilápia (FT) na alimentação de alevinos de piauçu (Leporinus macrocephalus). Cento e vinte e cinco alevinos com peso e comprimento
Wilson Rogério Boscolo, Altevir Signor, Aldi Feiden, Arcangelo Augusto Signor, Luciano André Schaefer, Adilson Reidel   +5 more
doaj   +1 more source

Imaging Active Infection in vivo Using D-Amino Acid Derived PET Radiotracers. [PDF]

, 2017
Occult bacterial infections represent a worldwide health problem. Differentiating active bacterial infection from sterile inflammation can be difficult using current imaging tools. Present clinically viable methodologies either detect morphologic changes
Blecha, Joseph E, Flavell, Robert R, Kwak, Tiffany, Mutch, Christopher A, Neumann, Kiel D, Ohliger, Michael A, Rosenberg, Oren S, Sriram, Renuka, VanBrocklin, Henry F, Villanueva-Meyer, Javier E, Wilson, David M   +10 more
core   +1 more source

Reduction of methionine sulfoxide to methionine by Escherichia coli [PDF]

Journal of Bacteriology, 1979
L-Methionine-dl-sulfoxide can support the growth of an Escherichia coli methionine auxotroph, suggesting the presence of an enzyme(s) capable of reducing the sulfoxide to methionine. This was verified by showing that a cell-free extract of E. coli catalyzes the conversion of methionine sulfoxide to methionine.
S I, Ejiri, H, Weissbach, N, Brot
openaire   +2 more sources

The impact of general anesthesia on methionine metabolism during cardiopulmonary bypass

Вестник анестезиологии и реаниматологии, 2020
It has been found out that methylation of nucleic acids, proteins and low-molecular substrates is necessary to renew cellular structures, their restoration and cytoprotection.
Yu. S. Polushin, T. F. Subbotina, N. S. Molchan, A. A. Zhloba   +3 more
doaj   +1 more source