Recombinant D. melanogaster DNA-directed RNA polymerase I subunit RPA1(RpI1), partial

Drosophila melanogaster

RpI1

RpI1; RPA1; CG10122; DNA-directed RNA polymerase I subunit RPA1; RNA polymerase I subunit A1; EC 2.7.7.6; DNA-directed RNA polymerase I largest subunit; DNA-directed RNA polymerase I subunit A

Nucleus, nucleolus.

RNA polymerase beta' chain family

DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Largest and catalytic core component of RNA polymerase I which synthesizes ribosomal RNA precursors. Forms the polymerase active center together with the second largest subunit. A single stranded DNA template strand of the promoter is positioned within the central active site cleft of Pol I. A bridging helix emanates from RPA1 and crosses the cleft near the catalytic site and is thought to promote translocation of Pol I by acting as a ratchet that moves the RNA-DNA hybrid through the active site by switching from straight to bent conformations at each step of nucleotide addition.

KEGG: Dmel_CG10122; STRING: 7227.FBpp0086640

Recombinant Protein

Yeast; E. coli; Baculovirus; Mammalian cell

Partial

>85% (SDS-PAGE)

The following tags are available. N-terminal His-tagged Tag-Free

Lyophilized powder

Tris/PBS-based buffer, 6% Trehalose, pH 8.0

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Delivery time may differ from different purchasing ways or locations, please kindly consult us for specific delivery times.

Store at -20 °C/-80 °C upon receipt, aliquoting is necessary for multiple use.

The shelf life is related to many factors, including storage state, buffer ingredients, storage temperature, and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 12 months at -20 °C/-80 °C.

Repeated freezing and thawing are not recommended.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Store working aliquots at 4 °C for up to one week.