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Oligo Modifications List | Oligo Modifications Reference Category
Modification : N6-Methyl dA (m6dA)
Reference Catalog Number 26-6601
Category Epigenetics
Modification Code m6dA
5 Prime Y
3 Prime Y
Internal Y
Molecular Weight (mw) 327.24
Extinction Coeficient (ec) 15.2
Technical Info (pdf) PS26-6601.pdf
Catalog NoScalePrice
26-6601-0550 nmol$162.50
26-6601-02200 nmol$162.50
26-6601-011 umol$211.25
26-6601-032 umol$316.87
26-6601-1010 umol$1,690.00
26-6601-1515 umol$2,112.50

Discounts are available for N6-Methyl dA (m6dA)!
Modification* Discount Price Structure
1 site/order List price
2 sites/order 10% discount
3 sites/order 20% discount
4 sites/order 30% discount
5-9 sites/order 50% discount
10+ sites/order 60% discount
*Exceptions apply

Related Modifications
N6-dimethyl rA
5-ca dC
N6-Methyl rA (m6A)
5-hm dC
N6-Methyl dA (m6dA)
5-Me dC
5-hm dU
5-Me rC
5-formyl dC
N6-Benzyl Adenosine (bn6A)
N6-isopentenyl-rA (i6a)

N6-Methyl-deoxyadenosine (N6-Me-dA) is a methylated nucleoside base that to date has only been found in bacterial and protist DNA (1). In these organisms, N6-Me-dA plays several roles, including post-replicative DNA mis-match repair, chromosome compaction and regulation of gene expression (2). Adenine methylation also is essential for either the viability or virulence of a number of pathological bacterial strains (3). Because of these properties, there is considerable interest in the bacterial enzyme N6-DNA methyltransferase (which methylates adenine) as a potential target for developing new anti-microbials (4), as well as the need to confirm whether or not this enzyme is present in mammals, including human (5). N6-Me-dA-modified oligonucleotides can serve as important research tools in such studies.

References
1. Hattman, S. DNA-[adenine] methylation in lower eukaryotes. Biochemistry (Mosc) (2005), 70: 550-558.
2. Wion, D., Casadesus, J. N(6)-methyl-adenine: an epigenetic signal for DNA-protein interactions. Nat. Rev. Microbiol. (2006), 4: 183-192.
3. Heithoff, D.M., Sinsheimer, R.L., Low, D.A., Mahan, M.J. An essential role for DNA adenine methylation in bacterial virulence. Science (1999), 284: 967-970.
4. Mashoon, N., Carroll, M., Pruss, C., Eberhard, J., Ishikawa, S., Estabrook, R.A., Reich, N. Functional characterization of Escherichia coli DNA adenine methyltransferase, a novel target for antibiotics. J. Biol. Chem. (2004), 279: 52075-52081.
5. Ratel, D., Ravanat, J-L., Charles, M-P., Platet, N., Breuillaud, L., Lunardi, J., Berger, F., Wion, D. Undetectable levels of N6-methyl adenine in mouse DNA. Cloning and analysis of PRED28, a gene coding for a putative mammalian DNA adenine methyltransferase. FEBS Microbiol. Lett. (2006), 580: 3179-3184.
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