POLYDIC-RO

Poly[d(I-C)]

lyophilized, pkg of 10 U (10108812001 [A₂₆₀ units]), pkg of 50 U (11219847001 [A₂₆₀ units])

• Synonym(e): Poly-deoxy-inosinic-deoxy-cytidylic acid
• UNSPSC-Code: 12352200

Eigenschaften

• Beschreibung: Poly-deoxy-inosinic-deoxy-cytidylic acid
• Qualitätsniveau: 100
• Form: lyophilized
• Mol-Gew.: 28814 bp
• Verpackung: pkg of 10 U (10108812001 [A₂₆₀ units]); pkg of 50 U (11219847001 [A₂₆₀ units])
• Hersteller/Markenname: Roche
• Farbe: white
• mp (Schmelzpunkt): 54 °C (NaCl, 0.1 M, pH 7.0)
• Löslichkeit: water: soluble
• Extinktionsverhältnis: A_{290/260 nm} 0.24-0.32; A_{280/260 nm} 0.61-0.67; A_{250/260 nm} 1.18-1.30
• Lagertemp.: −20°C

Beschreibung

Anwendung

Poly[d(I-C)] is used as a template for RNA polymerases, and as a DNA model for biophysical investigations.
It is also used as a primer template with Kornberg DNA polymerase for the determination of small amounts of dITP, dGTP, and dCTP. Poly(dI-dC) has been used in electrophoretic mobility shift assays (EMSA).

Leistungsmerkmale und Vorteile

Contents
Lyophilizate, sodium salt, base ratio 1:1, alternating base sequence

Qualität

Typical analysis:
Absorbance determination A₂₅₀/A₂₆₀, A₂₈₀/A₂₆₀, A₂₉₀/A₂₆₀

Sequenz

Chain Length approx. 20,000 bp

In an aqueous solution the DNA itself is a salt (the acid groups of the phosphate back bone have a negative charge and are saturated by positive sodium ions) i.e. there is no additional salt in solution. The structural formula which shows the negative 0-groups in the phosphate backbone is available. The same number of positive sodium ions must be dissociated in solution as counter ions.

As the sodium ions are part of the product and saturate the phosphate groups, the lyophilisate is salt-free.

Einheitendefinition

1 A₂₆₀ unit corresponds to 50 μg ds DNA.

Unit Conversion: 1 A₂₆₀ unit corresponds to 50 μg ds DNA.

Angaben zur Herstellung

Activator: Polymines (spermine, spermidine)
Storage conditions (working solution): Solution is stable to at least 12 months if stored at 2 to 8 °C, contact with DNase or bacteria is to avoid.

Sonstige Hinweise

For life science research only. Not for use in diagnostic procedures.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable