Purification notesab50809 was purified using protein G column chromatography from culture supernatant of hybridoma cultured in a medium containing bovine IgG-depleted (approximately 95%) fetal bovine serum and filtered through a 0.22µn membrane.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use at an assay dependent dilution.
Use at an assay dependent dilution. Predicted molecular weight: 74 kDa.
FunctionGeneral activator of RNA polymerase which utilizes different TFIIIB complexes at structurally distinct promoters. The isoform 1 is involved in the transcription of tRNA, adenovirus VA1, 7SL and 5S RNA. Isoform 2 is required for transcription of the U6 promoter.
Sequence similaritiesBelongs to the TFIIB family. Contains 1 TFIIB-type zinc finger.
Post-translational modificationsPhosphorylated upon DNA damage, probably by ATM or ATR.