This product is a convenient, ready-to-use solution of calf thymus DNA especially prepared for use in the preparation of pre-hybridization and hybridization solutions and as a DNA carrier in yeast transformation protocols and other related methods. This product is also an excellent substrate for…

Salmon Testes DNA is suitable for use as a substrate for deoxyribonuclease assays and other molecular biological techniques.

Calf Thymus DNA is suitable for use as a substrate for deoxyribonuclease assays and other molecular biological techniques.

A solution in 10 mM Tris-Cl and 1 mM EDTA, pH 8.0. Note: A higher sample load may be required to clearly see the 564 and 125 base pair bands.)

Deoxyribonuclease I application is one unit will cause an increase in the absorbance at 260 nm of 0.001 per minute per ml at 25° C, pH 5.0 when acting on highly polymerized DNA according to the assay method of Kunitz (J.Gen.Physiol. 33, 349 and 363 (1950)). A solution in 1 mM Calcium Chloride…

One unit will cause an increase in the absorbance at 260 nm of 0.001 per minute per ml at 25° C, pH 5.0 when acting on highly polymerized DNA according to the assay method of Kunitz (J.Gen.Physiol. 33, 349 and 363 (1950)). A solution in 1 mM Calcium Chloride and 50% (v/v) glycerol.

Purified Lambda phage DNA is in a solution in 10 mM Tris-Cl and 1 mM EDTA, pH 8.0. This product may be used for to perform activity assays for restriction enzymes, the preparation of DNA molecular weight standards, and other cloning procedures.

One unit will catalyze the exchange of one nanomole 32-P from pyrophosphate into a Norit-absorbable compound in 20 minutes at 37° C (Weiss, B., et al., JBC 243, 4543 (1968). 50 mM Tris-HCl, 10 mM MgCl2, 10 mM DTT, 1 mM ATP, pH 7.5 @ 25°C.