Invitrogen launched its OptiCHO Express kit last week, designed “for the efficient growth and transfection of dihydrofolate reductase-deficient Chinese hamster ovary DG44 cells in suspension culture,” the company said.
The kit provides a complete workflow protocol for developing stable cell lines and includes components for expression vector construction, high-efficiency transfection of DG44 cells, and combinant protein expression in a serum-free environment with animal-free media, Invitrogen said.
Norgen Bioteck this week lauched its RNA/DNA/Protein Purification Kit. The kit allows researchers to isolate total RNA, genomic DNA, and proteins simultaneously from a single sample using one column, Norgen said. No additional supplemental protocols or acetone precipitation of proteins is needed, it said.