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Merck
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Key Documents

P9764

Sigma-Aldrich

Polydeoxyadenylic acid • Polythymidylic acid sodium salt

double-stranded homopolymer

Sinónimos:

Poly(dA) • Poly(dT)

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About This Item

Número de CAS:
86834-22-2
MDL number:
MFCD00131963
UNSPSC Code:
41106305
NACRES:
NA.51

biological source

synthetic (organic)

Quality Level

200

form

powder

storage temp.

−20°C

InChI

1S/C10H14N5O6P.C10H15N2O8P/c11-9-8-10(13-3-12-9)15(4-14-8)7-1-5(16)6(21-7)2-20-22(17,18)19;1-5-3-12(10(15)11-9(5)14)8-2-6(13)7(20-8)4-19-21(16,17)18/h3-7,16H,1-2H2,(H2,11,12,13)(H2,17,18,19);3,6-8,13H,2,4H2,1H3,(H,11,14,15)(H2,16,17,18)

InChI key

KKVQVIFXABFJCS-UHFFFAOYSA-N

Application

Polydeoxyadenylic acid • Polythymidylic acid (Poly(dA) • Poly(dT)) is a double-stranded homopolymer use as a DNA model for conformational studies of DNA structure dynamics and drug interaction.

Other Notes

Double-stranded homopolymer

Unit Definition

One unit will yield an A260 of 1.0 in 1.0 ml 20 mM sodium phosphate/100 mM NaCl, pH 7.0

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)

Certificados de análisis (COA)

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Marta Airoldi et al.
Biopolymers, 75(2), 118-127 (2004-09-10)
CD and uv absorption data showed that high molecular weight poly(dA-dT) . poly(dA-dT), at 298 K, undergoes an acid-induced transition from B-double helix to random coil in NaCl solutions of different concentrations, ranging from 0.005 to 0.600M. Similarly, titration of
K H Yoo et al.
Physical review letters, 87(19), 198102-198102 (2001-11-03)
We report direct measurements of electrical transport through poly(dA)-poly(dT) and poly(dG)-poly(dC) DNA molecules containing identical base pairs. The observed experimental results suggest that electrical transport through DNA molecules occurs by polaron hopping. We have also investigated the effect of gate
Dev P Arya
Accounts of chemical research, 44(2), 134-146 (2010-11-16)
A DNA duplex can be recognized sequence-specifically in the major groove by an oligodeoxynucleotide (ODN). The resulting structure is a DNA triple helix, or triplex. The scientific community has invested significant research capital in the study of DNA triplexes because
Taegi Park et al.
Biochimica et biophysica acta, 1726(3), 287-292 (2005-09-01)
The binding modes of the free-base meso-tetrakis(N-methylpyridinium-4-yl)porphyrin (TMPyP) complexed with [d(AT)n]2 oligonucleotides (where n=3-8, corresponding to 6 to 16 AT base pairs) were studied by circular dichroism (CD). When associated with the shortest oligonucleotide, ([d(AT)3]2), a bisignate CD spectrum was
J Tanha et al.
Molecular immunology, 34(2), 109-113 (1997-02-01)
A large combinatorial phage display library was panned against five nucleic acid antigens, calf thymus DNA, poly[d(GC)], poly[d(AT)], poly(dA) x poly(dT) and poly(rA) x poly(dT). After the third and fourth rounds of panning, many positive clones were selected against poly[d(GC)]
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