ALTER 发表于 2025-3-26 21:17:55
http://reply.papertrans.cn/19/1875/187405/187405_31.pngARC 发表于 2025-3-27 01:23:45
https://doi.org/10.1007/978-3-322-99428-8 include other tumors and genes (Hoffman, 1984). Finally, dietary deprivation of the methyl donors methionine and choline had been shown to induce liver carcinomas in rats (Copeland and Salmon, 1946). Although these findings were accepted for a period of nearly 10 years, the subsequent demonstration引水渠 发表于 2025-3-27 07:04:01
https://doi.org/10.1007/978-3-662-66619-7e 28 S rRNA and present in the large subunit of eukaryotic (but not of prokaryotic) ribosomes, contains two 2′−0 methylated ribose residues (Nazar .., 1975a, b ; MacKay and Doolittle, 1981 ; Schnare and Gray, 1982). Whereas phosphodiester bonds adjacent to methylated bases in RNA display normal sens彻底检查 发表于 2025-3-27 10:52:16
https://doi.org/10.1007/978-90-313-7590-5of these enzymes would function as components of reversible covalent modification systems to regulate the activity of various methyl-accepting proteins (Gagnon and Heisler, 1979; Paik and Kim, 1980; O’Dea et al., 1981). Although this does appear to be the case for a class of bacterial methyltransferStricture 发表于 2025-3-27 13:55:52
Kleine ontwikkelingspsychologie IIbeen well established (Paik & Kim, 1980). It involves N-methylation of lysine, arginine, histidine, alanine, proline, and glutamine, O-methylation of glutamic and aspartic acid, and S-methylation of methionine and cysteine (Paik & Kim, 1985). As shown in Table I, methylated amino acids occur in highMagnificent 发表于 2025-3-27 19:32:53
Kleine ontwikkelingspsychologie II role of this enzyme are 1) the nature and specificity of relevant . protein substrates; 2) the stoichiometry of protein carboxylmethylation and 3) the rapid hydrolysis of carboxylmethylesters under conditions of neutral and basic pH (Billingsley and Lovenberg, 1985). Thus, two major schools of thouHPA533 发表于 2025-3-27 23:31:38
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http://reply.papertrans.cn/19/1875/187405/187405_39.png针叶树 发表于 2025-3-28 11:57:01
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