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质量水平
检测方案
≥80% (HPLC)
≥80% (spectrophotometric assay)
形式
powder
技术
cell culture | mammalian: suitable
颜色
white to off-white
溶解性
H2O: 100 mg/mL
运输
dry ice
储存温度
−20°C
SMILES字符串
[I-].C[S+](CC[C@H](N)C(O)=O)C[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23
InChI
1S/C15H22N6O5S.HI/c1-27(3-2-7(16)15(24)25)4-8-10(22)11(23)14(26-8)21-6-20-9-12(17)18-5-19-13(9)21;/h5-8,10-11,14,22-23H,2-4,16H2,1H3,(H2-,17,18,19,24,25);1H/t7-,8+,10+,11+,14+,27?;/m0./s1
InChI key
XQMWYLXPEGFCFT-XKGORWRGSA-N
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应用
S-(5′-腺苷)-L-甲硫氨酸（SAM，AdoMet）被用作哺乳动物细胞培养物的主要甲基供体分子以及甲硫氨酸生物合成的第一步代谢物。
生化/生理作用
甲基供体；作为酶催化甲基化的辅因子，包括儿茶酚O-甲基转移酶（COMT）和DNA甲基转移酶（DNMT）。 虽然它存在于所有细胞中，但在肝脏中较为集中，85%的甲基化反应发生在肝脏。 它还参与调节肝功能、生长和对损伤的反应中。
注意
该材料在室温下非常不稳定。
分析说明
通过UV和HPLC进行纯化。
警示用语：
Warning
危险声明
危险分类
Skin Sens. 1
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Faceshields, Gloves, type N95 (US)
Soon Goo Lee et al.
The Journal of biological chemistry, 287(2), 1426-1434 (2011-11-26)
In the malarial parasite Plasmodium falciparum, a multifunctional phosphoethanolamine methyltransferase (PfPMT) catalyzes the methylation of phosphoethanolamine (pEA) to phosphocholine for membrane biogenesis. This pathway is also found in plant and nematodes, but PMT from these organisms use multiple methyltransferase domains
T Kakutani et al.
Nucleic acids research, 23(1), 130-137 (1995-01-11)
We have recently isolated two Arabidopsis thaliana DNA hypomethylation mutations, identifying the DDM1 locus, that cause a 70% reduction in genomic 5-methylcytosine levels [1]. Here we describe further phenotypic and biochemical characterization of the ddm1 mutants. ddm1/ddm1 homozygotes exhibited altered
Benjamin R Duffus et al.
Biochimica et biophysica acta, 1824(11), 1254-1263 (2012-01-25)
Radical S-adenosylmethionine (AdoMet) enzymes comprise a large superfamily of proteins that engage in a diverse series of biochemical transformations through generation of the highly reactive 5'-deoxyadenosyl radical intermediate. Recent advances into the biosynthesis of unique iron-sulfur (FeS)-containing cofactors such as
Yui Yamashita et al.
The Journal of biological chemistry, 289(18), 12693-12704 (2014-03-22)
Expression of CGS1, which codes for an enzyme of methionine biosynthesis, is feedback-regulated by mRNA degradation in response to S-adenosyl-L-methionine (AdoMet). In vitro studies revealed that AdoMet induces translation arrest at Ser-94, upon which several ribosomes stack behind the arrested
Ernst G Malygin et al.
Critical reviews in biochemistry and molecular biology, 47(2), 97-193 (2012-01-21)
The sequence-specific transfer of methyl groups from donor S-adenosyl-L-methionine (AdoMet) to certain positions of DNA-adenine or -cytosine residues by DNA methyltransferases (MTases) is a major form of epigenetic modification. It is virtually ubiquitous, except for some notable exceptions. Site-specific methylation
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