Results 311 to 320 of about 881,260 (340)
Some of the next articles are maybe not open access.
Archives of General Psychiatry, 1979
L-Methionine had no behavioral effects in normal humans and failed to increase concentrations of S-adenosylmethionine (methyl donor) in human or rat blood, while increasing rat liver levels more than fivefold. Methionine or S-adenosylmethionine in very high doses had almost no effect on methylation of tritiated levodopa in rodent tissues; various ...
R J, Baldessarini +2 more
openaire +2 more sources
L-Methionine had no behavioral effects in normal humans and failed to increase concentrations of S-adenosylmethionine (methyl donor) in human or rat blood, while increasing rat liver levels more than fivefold. Methionine or S-adenosylmethionine in very high doses had almost no effect on methylation of tritiated levodopa in rodent tissues; various ...
R J, Baldessarini +2 more
openaire +2 more sources
Methyl(trifluoro-methyl)dioxirane
2005A review of the article Methyl(trifluoro-methyl)dioxirane.
Jack K. Crandall +3 more
openaire +3 more sources
10-Methyl- and 9,10-dimethylacridinium methyl sulfate
Acta Crystallographica Section C Crystal Structure Communications, 2002The title compounds, C(14)H(12)N(+).CH(3)O(4)S(-), (I), and C(15)H(14)N(+).CH(3)O(4)S(-), (II), respectively, crystallize with the planar 10-methylacridinium or 9,10-dimethylacridinium cations arranged in layers, parallel to the twofold axis in (I) and perpendicular to the 2(1) axis in (II).
Joanna, Meszko +4 more
openaire +2 more sources
Methyl transfer from methyl vitamin B12
Biochimica et Biophysica Acta (BBA) - General Subjects, 1971Abstract The transfer of the methyl group from methyl vitamin B12 to thiolates and other anions has been studied. In the presence of oxidising agents, including molecular oxygen, transfer is rapid. In the absence of such reagents no methyl transfer is observed.
G, Agnes +5 more
openaire +2 more sources
Histone Methylation: Recognizing the Methyl Mark
2003Publisher Summary Histone N-terminal tails are subject to a variety of covalent modifications that ultimately affect chromatin structure. One such modification is N-methylation, which occurs on Lys (K) and Arg (R) amino acids. The enzymes performing these modifications are the histone N-methyl transferases (HMTs) that catalyze the transfer of a ...
Andrew J, Bannister, Tony, Kouzarides
openaire +2 more sources
Current Opinion in Cell Biology, 1993
Proteins can be enzymatically modified in several ways by the addition of methyl groups from S-adenosylmethionine. Reactions forming methyl esters on carboxyl groups are potentially reversible and can modulate the activity of the target protein; in the past year, advances have been made in understanding the physiological roles of four distinct systems ...
openaire +2 more sources
Proteins can be enzymatically modified in several ways by the addition of methyl groups from S-adenosylmethionine. Reactions forming methyl esters on carboxyl groups are potentially reversible and can modulate the activity of the target protein; in the past year, advances have been made in understanding the physiological roles of four distinct systems ...
openaire +2 more sources
Monoepoxidation of methyl linoleate: (±)‐methyl vernolate and (±)‐methyl coronarate
Journal of the American Oil Chemists' Society, 1968AbstractThe two monoepoxides resulting from the epoxidation of methyl linoleate with monoperphthalic acid have been separated from each other by column chromatography. Degradation reactions on each of these established that the separation occurred without concomitant rearrangement of the double bond or the epoxide ring.
M. Ferrari +3 more
openaire +1 more source
Partial methylation of methyl glycosides
Chemistry of Natural Compounds, 1975The partial methylation of methyl xylo-, arabino-, lyxo- and rhamnopyranosides by Purdie's method has been studied; it is possible to use the results obtained for the isolation of individual methyl ethers by micro-preparative GLC.
E. V. Evtushenko, Yu. S. Ovodov
openaire +1 more source
Methylation by methyl vitamin B12
Journal of the Chemical Society D: Chemical Communications, 1971Methyl vitamin B12 is shown to be capable of transferring methyl groups to HgII, TlIII, PtII, and AuI; two different reaction paths are involved, one of which, with HgII or TlIII, is an acid-base reaction while the other is probably an oxidation-reduction reaction for it requires both PtII and PtIV, or AuI and AuIII.
G. Agnes +4 more
openaire +1 more source
(Dimethylamino)methyl Methyl Ether
2001(1; R = Me) [62393-45-7] C4H11NO (MW 89.14) InChI = 1S/C4H11NO/c1-5(2)4-6-3/h4H2,1-3H3 InChIKey = YFTNTMQKPLVKFQ-UHFFFAOYSA-N (2; R = Bu) [56275-84-4] C7H17NO (MW 131.22) InChI = 1S/C7H17NO/c1-4-5-6-9-7-8(2)3/h4-7H2,1-3H3 InChIKey = HPUIQFXZXVKZBN-UHFFFAOYSA-N (precursor for N,N-dimethyl(methylene)ammonium salts;2, 3 useful ...
openaire +1 more source