Anti-Rrn3 (V643) Antibody

Raised in rabbit against the human Rrn3 transcription factor, this unconjugated polyclonal antibody from Antibodies.com is supplied as 100 µl of a 1 mg/ml stock formulated in phosphate buffered saline (PBS) at approximately pH 7.2 with 0.05% sodium azide as a preservative. Rrn3 (also called TIF-IA) is the RNA polymerase I-specific transcription initiation factor that recruits Pol I to the rDNA promoter through its interaction with selectivity factor 1, so detection of endogenous protein levels in human samples is the intended application. The reagent is validated for Western blot and immunohistochemistry workflows, with reactivity restricted to human cells and tissues. Host species is rabbit, clonality is polyclonal, and the conjugate is unconjugated, leaving the choice of reporter label such as HRP, biotin, or a fluorophore to the end user. For handling, refrigerate the vial upon receipt and aliquot the antibody stock before freezing if longer-term storage is needed, avoiding repeated freeze-thaw cycles of the working aliquots. Intended for research use only, the product ships in a single vial sized at 100 µl and is suited to routine immunoblotting and chromogenic IHC experiments probing Pol I transcription machinery.