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Key Documents

A9384

Sigma-Aldrich

S-(5′-Adenosyl)-L-homocysteine

crystalline

Sinonimo/i:

5′-Deoxy-S-adenosyl-L-homocysteine, AdoHcy, S-(5′-Deoxyadenosine-5′)-L-homocysteine

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About This Item

Formula empirica (notazione di Hill):
C14H20N6O5S
Numero CAS:
Peso molecolare:
384.41
Beilstein:
99188
Numero CE:
Numero MDL:
Codice UNSPSC:
41106305
eCl@ss:
32160406
ID PubChem:
NACRES:
NA.51

Saggio

≥98.0% (HPLC)
≥98.0% (TLC)

Livello qualitativo

Forma fisica

crystalline

PM

384.41

Solubilità

1 M HCl: soluble 19.60-20.40 mg/mL, clear to slightly hazy, colorless to faintly yellow

Temperatura di conservazione

−20°C

Stringa SMILE

N[C@@H](CCSC[C@H]1O[C@H]([C@H](O)[C@@H]1O)n2cnc3c(N)ncnc23)C(O)=O

InChI

1S/C14H20N6O5S/c15-6(14(23)24)1-2-26-3-7-9(21)10(22)13(25-7)20-5-19-8-11(16)17-4-18-12(8)20/h4-7,9-10,13,21-22H,1-3,15H2,(H,23,24)(H2,16,17,18)/t6-,7+,9+,10+,13+/m0/s1
ZJUKTBDSGOFHSH-WFMPWKQPSA-N

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Applicazioni

SAH is suitable for use:
  • to investigate whether AdoHcy competes with AdoMet in the down-regulation of reporter activity of LUC reporter gene
  • as a reagent to study the abundance patterns of SAH and its correlation with vertebrate metamorphosis
  • in the optimization of the protein (lysine K) methyltransferase SET7/9 activity assay
  • in the fluorescence polarization (FP) assay during dengue virus methyltransferase activity measurement
  • as a standard for the measurement of SAH from blood samples by high performance liquid chromatography (HPLC) with fluorimetric detection method

Azioni biochim/fisiol

S-(5′-Adenosyl)-L-homocysteine (AdoHcy/SAH) is a component of intracellular homocysteine stress. AdoHcy is a competitive inhibitor (versus AdoMet) of DNA methyltransferases (S-adenosyl-L-methionine (AdoMet)-dependent methyltransferases) involved in epigenetics. Consequently, AdoHcy is used in a variety of studies on epigenetics in hyperhomocysteinemic states. AdoHcy is metabolized by S-adenosylhomocysteine hydrolase (AHCY). AdoHcy is the product of enzymatic transmethylation reactions involving S-Adenosylmethionine (SAM). It is reconverted to SAM by its cleavage into adenosine and L-homocysteine, a substrate of thetin-homocysteine S-methyltransferase. The concentration alterations of SAM and SAH in plasma serve as predictors of cellular methylation potential and metabolic alterations. Methylation capacity indicates specific genetic polymorphisms and/or nutritional deficiencies. Methylation is important in epigenetics, reprogramming, and cancer.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


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The international journal of biochemistry & cell biology, 32(4), 391-395 (2000-04-13)
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Articoli

Epigenetic modifications are thought to occur through two key interconnected processes—DNA methylation and the covalent modification of histones.

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