POLR2A sirna

POLR2A siRNA (Human)

Cat. Num. AAA8218353

• Gene Names: POLR2A; RPB1; RPO2; POLR2; POLRA; RPBh1; RPOL2; RpIILS; hsRPB1; hRPB220
• Reactivity: Human
• Applications: RNA Interference (RNAi)
• Purity: > 97%
• Synonyms: POLR2A; POLR2A siRNA (Human); POLR2; DNA-directed RNA polymerase II subunit RPB1; RNA polymerase II subunit B1; DNA-directed RNA polymerase II subunit A; DNA-directed RNA polymerase III largest subunit; RNA-directed RNA polymerase II subunit RPB1; POLR2A sirna

• Host: Synthetic
• Reactivity: Human
• Specificity: POLR2A siRNA (Human) is a target-specific 19-23 nt siRNA oligo duplexes designed to knock down gene expression.
• Purity/Purification: > 97%
• Form/Format: Lyophilized powder
• Sequence Length: 1970

• Applicable Applications for POLR2A sirna: RNA Interference (RNAi)
• Quality Control: Oligonucleotide synthesis is monitored base by base through trityl analysis to ensure appropriate coupling efficiency. The oligo is subsequently purified by affinity-solid phase extraction. The annealed RNA duplex is further analyzed by mass spectrometry to verify the exact composition of the duplex. Each lot is compared to the previous lot by mass spectrometry to ensure maximum lot-to-lot consistency.
• Directions for Use: We recommends transfection with 100 nM siRNA 48 to 72 hours prior to cell lysis. Before resuspending, briefly centrifuge the tube to ensure the lyophilized siRNA is at the bottom of the tube. Resuspend the siRNA oligos to an appropriate concentration with DEPC water. For each vial, suitable for 250 transfections in 24 well plate (20 pmol for each well).
• Components: We offer pre-designed sets of 3 different target-specific siRNA oligo duplexes of human POLR2A gene. Each vial contains 5 nmol of lyophilized siRNA. The duplexes can be transfected individually or pooled together to achieve knockdown of the target gene, which is most commonly assessed by qPCR or western blot. Our siRNA oligos are also chemically modified (2'-OMe) at no extra charge for increased stability and enhanced knockdown in vitro and in vivo.
• Preparation and Storage: Shipped at 4 degree C. Store at -20 degree C for one year.

Related Product Information for POLR2A sirna

siRNA to inhibit POLR2A expression using RNA interference

NCBI and Uniprot Product Information

• NCBI GI #: 4505939
• NCBI GeneID: 5430
• NCBI Accession #: NP_000928.1
• NCBI GenBank Nucleotide #: NM_000937.4
• UniProt Accession #: P24928; Q6NX41; A6NN93; B9EH88
• Molecular Weight: 63,641 Da
• NCBI Official Full Name: DNA-directed RNA polymerase II subunit RPB1
• NCBI Official Synonym Full Names: polymerase (RNA) II (DNA directed) polypeptide A, 220kDa
• NCBI Official Symbol: POLR2A
• NCBI Official Synonym Symbols: RPB1; RPO2; POLR2; POLRA; RPBh1; RPOL2; RpIILS; hsRPB1; hRPB220
• NCBI Protein Information: DNA-directed RNA polymerase II subunit RPB1
• UniProt Protein Name: DNA-directed RNA polymerase II subunit RPB1
• UniProt Gene Name: POLR2A
• UniProt Synonym Gene Names: POLR2; RNA polymerase II subunit B1
• UniProt Entry Name: RPB1_HUMAN

NCBI Description

This gene encodes the largest subunit of RNA polymerase II, the polymerase responsible for synthesizing messenger RNA in eukaryotes. The product of this gene contains a carboxy terminal domain composed of heptapeptide repeats that are essential for polymerase activity. These repeats contain serine and threonine residues that are phosphorylated in actively transcribing RNA polymerase. In addition, this subunit, in combination with several other polymerase subunits, forms the DNA binding domain of the polymerase, a groove in which the DNA template is transcribed into RNA. [provided by RefSeq, Jul 2008]

Uniprot Description

POLR2A: DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates. Largest and catalytic component of RNA polymerase II which synthesizes mRNA precursors and many functional non-coding RNAs. Forms the polymerase active center together with the second largest subunit. Pol II is the central component of the basal RNA polymerase II transcription machinery. It is composed of mobile elements that move relative to each other. RPB1 is part of the core element with the central large cleft, the clamp element that moves to open and close the cleft and the jaws that are thought to grab the incoming DNA template. At the start of transcription, a single stranded DNA template strand of the promoter is positioned within the central active site cleft of Pol II. A bridging helix emanates from RPB1 and crosses the cleft near the catalytic site and is thought to promote translocation of Pol II 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. During transcription elongation, Pol II moves on the template as the transcript elongates. Elongation is influenced by the phosphorylation status of the C-terminal domain (CTD) of Pol II largest subunit (RPB1), which serves as a platform for assembly of factors that regulate transcription initiation, elongation, termination and mRNA processing. Acts as a RNA- dependent RNA polymerase when associated with small delta antigen of Hepatitis delta virus, acting both as a replicate and transcriptase for the viral RNA circular genome. Component of the RNA polymerase II (Pol II) complex consisting of 12 subunits. The phosphorylated C-terminal domain interacts with FNBP3 and SYNCRIP. Interacts with SAFB/SAFB1. Interacts with CCNL1 and MYO1C. Interacts with CCNL2 and SFRS19. Component of a complex which is at least composed of HTATSF1/Tat-SF1, the P-TEFb complex components CDK9 and CCNT1, RNA polymerase II, SUPT5H, and NCL/nucleolin. Interacts with PAF1. Interacts (via C-terminus) with FTSJD2, CTDSP1 and SCAF8. Interacts via the phosphorylated C-terminal domain with WDR82 and with SETD1A and SETD1B only in the presence of WDR82. Interacts with ATF7IP. When phosphorylated at 'Ser-5', interacts with MEN1; the unphosphorylated form, or phosphorylated at 'Ser-2' does not interact. Interacts with DDX5. Belongs to the RNA polymerase beta' chain family.

Protein type: Transferase; Transcription initiation complex; Nucleotide Metabolism - purine; Nucleotide Metabolism - pyrimidine; EC 2.7.7.48; EC 2.7.7.6

Chromosomal Location of Human Ortholog: 17p13.1

Cellular Component: nucleoplasm; nucleolus; DNA-directed RNA polymerase II, core complex; nucleus

Molecular Function: protein binding; RNA-directed RNA polymerase activity; DNA binding; DNA-directed RNA polymerase activity; ubiquitin protein ligase binding; metal ion binding

Biological Process: transcription from RNA polymerase II promoter; transcription initiation from RNA polymerase II promoter; viral reproduction; positive regulation of viral transcription; somatic stem cell maintenance; RNA splicing; DNA repair; positive regulation of RNA splicing; nuclear mRNA splicing, via spliceosome; mRNA capping; regulation of transcription, DNA-dependent; nucleotide-excision repair; transcription-coupled nucleotide-excision repair; RNA elongation from RNA polymerase II promoter; gene expression