Skip to Content
MilliporeSigma
All Photos(4)

Documents

A9384

Sigma-Aldrich

S-(5′-Adenosyl)-L-homocysteine

crystalline

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(4)

About This Item

Empirical Formula (Hill Notation):
C14H20N6O5S
CAS Number:
979-92-0
Molecular Weight:
384.41
Beilstein/REAXYS Number:
99188
EC Number:
213-560-8
MDL number:
MFCD00037388
UNSPSC Code:
41106305
eCl@ss:
32160406
PubChem Substance ID:
24891441
NACRES:
NA.51

assay

≥98.0% (HPLC)
≥98.0% (TLC)

Quality Level

300

form

crystalline

mol wt

384.41

solubility

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

storage temp.

−20°C

SMILES string

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

InChI key

ZJUKTBDSGOFHSH-WFMPWKQPSA-N

Looking for similar products? Visit Product Comparison Guide

Application

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

Biochem/physiol Actions

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 7

1 of 7

AptaFluor® SAH Methyltransferase Assay

Sigma-Aldrich

3023

AptaFluor® SAH Methyltransferase Assay

L-Cystathionine ≥98% (TLC)

Sigma-Aldrich

C7505

L-Cystathionine

5′-Deoxyadenosine methylthioadenosine/S-adenosylhomocysteine (MTA/SAH) nucleosidase substrate

Sigma-Aldrich

D1771

5′-Deoxyadenosine

L-Homocysteine ≥98.0% (NT)

Sigma-Aldrich

69453

L-Homocysteine

Sinefungin InSolution, ≥95%, antibiotic

Millipore

567051-M

Sinefungin

USP

USP

1012134

Ademetionine disulfate tosylate

≥98% (HPLC)

Sigma-Aldrich

B5313

BIX-01338 hydrate

Yukako Chiba et al.
Proceedings of the National Academy of Sciences of the United States of America, 100(18), 10225-10230 (2003-08-23)
Cystathionine gamma-synthase, the first committed enzyme of methionine biosynthesis in higher plants, is encoded by the CGS1 gene in Arabidopsis thaliana. We have shown previously that the stability of the CGS1 mRNA is negatively regulated in response to methionine application
J Wang et al.
Thrombosis and haemostasis, 70(6), 1047-1052 (1993-12-20)
Elevated plasma homocysteine is associated with an increased risk of intravascular thrombosis. Platelet aggregation and thrombosis are inhibited by prostacyclin produced by the vascular endothelium. Our aim was to investigate whether homocysteine and related metabolites inhibit endothelial prostacyclin production. We
S C Lu
The international journal of biochemistry & cell biology, 32(4), 391-395 (2000-04-13)
S-Adenosyl-Lmethionine (SAM) is an important molecule in normal cell function and survival. SAM is utilized by three key metabolic pathways: transmethylation; transsulfuration; and polyamine synthesis. In transmethylation reactions, the methyl group of SAM is donated to a large variety of
Determination of S-adenosylmethionine and S-adenosylhomocysteine from human blood samples by HPLC-FL
Birsan, Camelia, et al.
Analytical Letters, 41, 1720-1731 (2008)
Wenyu Yu et al.
Bioorganic & medicinal chemistry, 21(7), 1787-1794 (2013-02-26)
Chemical inhibition of proteins involved in chromatin-mediated signaling is an emerging strategy to control chromatin compaction with the aim to reprogram expression networks to alter disease states. Protein methyltransferases constitute one of the protein families that participate in epigenetic control
View All Related Papers

Articles

Histone Modification and Chromatin Remodeling | Epigenetics

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

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service