PTBP1 sirna

PTBP1 siRNA (Human)

Cat. Num. AAA8205714

• Gene Names: PTBP1; PTB; PTB2; PTB3; PTB4; pPTB; HNRPI; PTB-1; PTB-T; HNRNPI; HNRNP-I
• Reactivity: Human
• Applications: RNA Interference (RNAi)
• Purity: > 97%
• Synonyms: PTBP1; PTBP1 siRNA (Human); PTB; Polypyrimidine tract-binding protein 1; 57 kDa RNA-binding protein PPTB-1; Heterogeneous nuclear ribonucleoprotein I; hnRNP I; PTBP1 sirna

• Host: Synthetic
• Reactivity: Human
• Specificity: PTBP1 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: 557

• Applicable Applications for PTBP1 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 PTBP1 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 PTBP1 sirna

siRNA to inhibit PTBP1 expression using RNA interference

NCBI and Uniprot Product Information

• NCBI GI #: 4506243
• NCBI GeneID: 5725
• NCBI Accession #: NP_002810.1
• NCBI GenBank Nucleotide #: NM_002819.4
• UniProt Accession #: P26599; Q9BUQ0
• Molecular Weight: 59,633 Da
• NCBI Official Full Name: polypyrimidine tract-binding protein 1 isoform a
• NCBI Official Synonym Full Names: polypyrimidine tract binding protein 1
• NCBI Official Symbol: PTBP1
• NCBI Official Synonym Symbols: PTB; PTB2; PTB3; PTB4; pPTB; HNRPI; PTB-1; PTB-T; HNRNPI; HNRNP-I
• NCBI Protein Information: polypyrimidine tract-binding protein 1
• UniProt Protein Name: Polypyrimidine tract-binding protein 1
• Protein Family: Polypyrimidine tract-binding protein
• UniProt Gene Name: PTBP1
• UniProt Synonym Gene Names: PTB; PTB; hnRNP I
• UniProt Entry Name: PTBP1_HUMAN

NCBI Description

This gene belongs to the subfamily of ubiquitously expressed heterogeneous nuclear ribonucleoproteins (hnRNPs). The hnRNPs are RNA-binding proteins and they complex with heterogeneous nuclear RNA (hnRNA). These proteins are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. While all of the hnRNPs are present in the nucleus, some seem to shuttle between the nucleus and the cytoplasm. The hnRNP proteins have distinct nucleic acid binding properties. The protein encoded by this gene has four repeats of quasi-RNA recognition motif (RRM) domains that bind RNAs. This protein binds to the intronic polypyrimidine tracts that requires pre-mRNA splicing and acts via the protein degradation ubiquitin-proteasome pathway. It may also promote the binding of U2 snRNP to pre-mRNAs. This protein is localized in the nucleoplasm and it is also detected in the perinucleolar structure. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

Uniprot Description

hnRNP I: a ubiquitously expressed heterogeneous nuclear ribonucleoprotein (hnRNP). hnRNPs are associated with pre-mRNAs in the nucleus and appear to influence pre-mRNA processing and other aspects of mRNA metabolism and transport. Binds to the polypyrimidine tract of introns. May promote the binding of U2 snRNP to pre-mRNA. Two alternatively spliced isoforms have been described.

Protein type: RNA splicing; RNA-binding

Chromosomal Location of Human Ortholog: 19p13.3

Cellular Component: nucleoplasm; membrane; nucleolus

Molecular Function: protein binding; poly-pyrimidine tract binding; RNA binding; nucleotide binding

Biological Process: nuclear mRNA splicing, via spliceosome; negative regulation of RNA splicing; negative regulation of nuclear mRNA splicing, via spliceosome; RNA splicing; negative regulation of muscle cell differentiation; gene expression; mRNA processing; regulation of alternative nuclear mRNA splicing, via spliceosome