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D8273

Sigma-Aldrich

Deoxyribonucleic acid−cellulose single-stranded from calf thymus DNA

lyophilized powder

Synonym(s):

single-stranded DNA-Cellulose, ss-DNA-Cellulose, DNA-Cellulose

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About This Item

MDL number:
UNSPSC Code:
41106305
eCl@ss:
32160414
NACRES:
NA.51
Pricing and availability is not currently available.

form

lyophilized powder

Quality Level

extent of labeling

≥3 mg single-stranded calf thymus DNA/g

storage temp.

−20°C

General description

Deoxyribonucleic acid−cellulose single-stranded from calf thymus DNA, also known as ctDNA is a natural source of DNA designed for DNA binding agent studies. The detection limits of ctDNA are around 2.0ng and linear ranges of light scattering intensity (I(LS)) is 0.05-1.5 mµg.[1]

Application

Deoxyribonucleic acid−cellulose single-stranded from calf thymus DNA is used to study the binding parameters and binding specificity of a variety of proteins, nucleotides, and chemical reagents including anti-cancer agents. It is frequently used in pull-down assays and chromatographic procedures.

Quality

May contain a trace of Tris and EDTA.

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

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A Georgaki et al.
Nucleic acids research, 22(7), 1128-1134 (1994-04-11)
A DNA helicase from calf thymus, called DNA helicase F, copurified with replication protein A through several steps of purification including DEAE-Sephacel, hydroxyapatite and single stranded DNA cellulose. It is finally separated from replication protein A on FPLC Mono Q
S S Zhang et al.
The Journal of biological chemistry, 266(30), 20483-20490 (1991-10-25)
Two DNA helicases from calf thymus nuclei have been purified and characterized. The two proteins, designated as nuclear DNA helicase I and II, were copurified on Bio-Rex 70, DEAE-Sepharose, phosphocellulose and subsequently separated from each other on a heparin-Sepharose column.
D Pisetsky et al.
The Journal of rheumatology, 26(9), 1934-1938 (1999-09-24)
To elucidate the epitope structure to DNA by identifying antigenic determinants on bacterial DNA bound by anti-DNA antibodies from normal human subjects (NHS) and patients with systemic lupus erythematosus (SLE). Sera from NHS and patients with SLE were tested by
T Kuzuhara et al.
Biochemical and biophysical research communications, 362(4), 805-810 (2007-09-04)
Tumor necrosis factor-alpha (TNF-alpha) inducing protein (Tipalpha) is a carcinogenic factor secreted from Helicobacter pylori (H. pylori), mediated through both enhanced expression of TNF-alpha and chemokine genes and activation of nuclear factor-kappaB. Since Tipalpha enters gastric cancer cells, the Tipalpha
Q Hua et al.
Cellular and molecular life sciences : CMLS, 60(2), 413-421 (2003-04-08)
Tau, a major microtubule-associated protein of the neuron, which is known to promote the assembly of and to stabilize microtubules, has also been seen associated with chromatin in neuronal cell lines, but its role in this subcellular compartment is still

Questions

  1. Instructions on how to pack a ssDNA cellulose column, like how to soak the powder (buffer, for how long, and temperature). Thanks

    1 answer
    1. The powder may be reconstituted in 10 mM Tris HCl buffer (pH 7.4) containing 1 mM EDTA. One gram of powder will swell to roughly 3 milliliters of resin.
      Relatively high volumes are required to maintain a suspension; a range of 15 – 30 mL per gram of dry powder is typical.
      For additional buffer recommendations, please refer to Methods in Enzymology, volume XXI, page 199 (1971).
      Gravity flow through a disposable column is recommended for best results.
      The use of a pump may cause the cellulose to compress, resulting in high back pressure and a very slow flow rate.

      Please see the research papers linked below that describe the use of this product in purification applications.

      https://journals.asm.org/doi/pdf/10.1128/mcb.16.10.5604
      https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1316966/

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