SD0021 is referred as Lambda DNA (dam-, dcm-) under Thermo Fisher Scientific catalogue. SD0021 Lambda DNA (dam-, dcm-) is applicable in Activity and specificity assays of restriction enzymes, Preparation of DNA molecular weight standards, and blotting and cloning. It is a is a temperate Escherichia coli bacteriophage. Lambda DNA (dam-, dcm-) is isolated from a heat-inducible lysogenic E. coli GM2163 strain. Phage lambda DNA is a common substrate for restriction endonucleases and for generating DNA size marker fragments. For large scale isolation of phage DNA, cI857Sam7, a mutant carrying four known mutations, is used. The DNA sequence used to construct a phage alpha restriction map includes these mutations.

Specifications: SD0021 Lambda DNA (dam-, dcm-) stored at -25 C to -15 C.The unit size is 500 g.