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P9389

Sigma-Aldrich

Poly(deoxyguanylic-deoxycytidylic) acid sodium salt

double stranded, alternating copolymer

Synonym(s):

Poly(dG-dC) • Poly(dG-dC)

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About This Item

CAS Number:
90385-88-9
MDL number:
MFCD00131968
UNSPSC Code:
41106305
NACRES:
NA.51

biological source

synthetic (organic)

Quality Level

200

form

powder or solid

storage temp.

−20°C

General description

Poly(deoxyguanylic-deoxycytidylic) acid (poly(dG-dC)) undergoes salt dependent conformational transition. Under high-salt, it exists as a left-handed double helix and at low-salt it displays B-DNA conformation. However on immobilization, poly(dG-dC) takes up A DNA form.

Application

Poly(deoxyguanylic-deoxycytidylic) acid (Poly(dG-dC) • Poly(dG-dC)) is an alternating copolymer, self-complementary, double-stranded DNA model for conformational studies of DNA structure dynamics and drug interaction.
Poly(deoxyguanylic-deoxycytidylic) acid sodium salt has been used:
  • in electrophoretic mobility shift assay of transcription factor IIIB complex
  • as synthetic copolymers for circular dichroism (CD) spectroscopy studies
  • as a positive control in liquid scintillation counting

Other Notes

Alternating copolymer; self-complementary, form double-stranded complex

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 (1cm light path).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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’.

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Sigma-Aldrich

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Febs Letters, 590(10), 1488-1497 (2016)
Poly (dG)-poly (dC) DNA appears shorter than poly (dA)-poly (dT) and possibly adopts an A-related conformation on a mica surface under ambient conditions
Borovok N, et al.
Febs Letters, 581(30), 5843-5846 (2007)
Salt-dependent dynamic structure of poly (dG-dC) textperiodcentered poly (dG-dC)
Ramstein J and Leng M
Nature, 288(5789), 413-413 (1980)
Genomic DNA methylation decreases in response to moderate folate depletion in elderly women-
Rampersaud GC, et al.
American Journal of Clinical Nutrition, 72(4), 998-1003 (2000)
Ville Laitala et al.
Analytical chemistry, 77(5), 1483-1487 (2005-03-01)
We report here a novel, time-resolved, lanthanide-based energy-transfer assay utilizing nonoverlapping acceptor fluorophores, which have their absorption energetically at a higher level than the emittive transitions of the donor. The technique was studied by comparing a series of nonoverlapping acceptors
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