Product Specifications Drap 1/P28 (RECOMBINANT): Description: Protein produced in E. coli as His-tag fusion. It is a subunit of the repressor Dr1 (NC2a)Mol.Weight: 28+-5 KDaStorage: Store at -80°C.Stability: At least 1 year at -80°C.Biological Activity: Interacts with TBP and prevents the TBP-IIB-IIA complex required for transcription.Formulation: 20% Glycerol solution at 0.20 mg/ml.