Rabbit anti-Human SFPQ Polyclonal Antibody | anti-SFPQ antibody

SFPQ, CT (SFPQ, PSF, Splicing factor, proline-and glutamine-rich, 100kD DNA-pairing protein, DNA-binding p52/p100 complex, 100kD subunit, Polypyrimidine tract-binding protein-associated-splicing factor) (Azide free) (HRP)

Cat. Num. AAA6346618

• Gene Names: SFPQ; PSF; POMP100; PPP1R140
• Reactivity: Human
• Applications: Western Blot, ELISA
• Purity: Purified by Protein A Affinity Chromatography.
• Synonyms: SFPQ; Polyclonal Antibody; CT (SFPQ; PSF; Splicing factor; proline-and glutamine-rich; 100kD DNA-pairing protein; DNA-binding p52/p100 complex; 100kD subunit; Polypyrimidine tract-binding protein-associated-splicing factor) (Azide free) (HRP); Polypyrimidine tract-binding protein-associated-splicing factor; anti-SFPQ antibody

• Host: Rabbit
• Reactivity: Human
• Clonality: Polyclonal
• Isotype: IgG
• Purity/Purification: Purified by Protein A Affinity Chromatography.
• Form/Format: Supplied as a liquid in PBS, pH 7.2. No preservative added. Labeled with Horseradish Peroxidase (HRP).

• Applicable Applications for anti-SFPQ antibody: Western Blot (WB), ELISA (EIA)
• Application Notes: WB: 1:100-500; ELISA: 1:1,000; Applications are based on unconjugated antibody.
• Immunogen: SFPQ antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 675-705 amino acids from the C-terminal region of human SFPQ.
• Conjugate: HRP
• Note: Preservative Free
• Preparation and Storage: Store product at 4 degree C if to be used immediately within two weeks. For long-term storage, aliquot to avoid repeated freezing and thawing and store at -20 degree C. Aliquots are stable at -20 degree C for 12 months after receipt. Dilute required amount only prior to immediate use. Further dilutions can be made in assay buffer. Note: Sodium azide is a potent inhibitor of peroxidase and should not be added to HRP conjugates. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

Western Blot (WB)

(SFPQ Antibody (C-term) western blot analysis in NCI-H460 cell line lysates (35ug/lane).This demonstrates the SFPQ antibody detected the SFPQ protein (arrow).)

Related Product Information for anti-SFPQ antibody

DNA-and RNA binding protein, involved in several nuclear processes. Essential pre-mRNA splicing factor required early in spliceosome formation and for splicing catalytic step II, probably as an heteromer with NONO. Binds to pre-mRNA in spliceosome C complex, and specifically binds to intronic polypyrimidine tracts. Interacts with U5 snRNA, probably by binding to a purine-rich sequence located on the 3' side of U5 snRNA stem 1b. May be involved in a pre-mRNA coupled splicing and polyadenylation process as component of a snRNP-free complex with SNRPA/U1A. The SFPQ-NONO heteromer associated with MATR3 may play a role in nuclear retention of defective RNAs. SFPQ may be involved in homologous DNA pairing; in vitro, promotes the invasion of ssDNA between a duplex DNA and produces a D-loop formation. The SFPQ-NONO heteromer may be involved in DNA unwinding by modulating the function of topoisomerase I/TOP1; in vitro, stimulates dissociation of TOP1 from DNA after cleavage and enhances its jumping between separate DNA helices. The SFPQ-NONO heteromer may be involved in DNA nonhomologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination and may stabilize paired DNA ends; in vitro, the complex strongly stimulates DNA end joining, binds directly to the DNA substrates and cooperates with the Ku70/G22P1-Ku80/XRCC5 (Ku) dimer to establish a functional preligation complex. SFPQ is involved in transcriptional regulation. Transcriptional repression is probably mediated by an interaction of SFPQ with SIN3A and subsequent recruitment of histone deacetylases (HDACs). The SFPQ-NONO/SF-1 complex binds to the CYP17 promoter and regulates basal and cAMP-dependent transcriptional avtivity. SFPQ isoform Long binds to the DNA binding domains (DBD) of nuclear hormone receptors, like RXRA and probably THRA, and acts as transcriptional corepressor in absence of hormone ligands. Binds the DNA sequence 5'-CTGAGTC-3' in the insulin-like growth factor response element (IGFRE) and inhibits IGF-I-stimulated transcriptional activity.

Product Categories/Family for anti-SFPQ antibody

Antibodies; Splicing Factors

References

Heyd, F., et al. Mol. Cell 40(1):126-137(2010). Marko, M., et al. Exp. Cell Res. 316(3):390-400(2010). David, A., et al. Eur. J. Endocrinol. 162(1):37-42(2010). Olsen, J.V., et al. Cell 127(3):635-648(2006). Ong, S.E., et al. Nat. Methods 1(2):119-126(2004).

NCBI and Uniprot Product Information

• NCBI GI #: 4826998
• NCBI GeneID: 6421
• NCBI Accession #: NP_005057.1
• NCBI GenBank Nucleotide #: NM_005066.2
• UniProt Accession #: P23246; P30808; Q5SZ71
• Molecular Weight: 72,263 Da
• NCBI Official Full Name: splicing factor, proline- and glutamine-rich
• NCBI Official Synonym Full Names: splicing factor proline/glutamine-rich
• NCBI Official Symbol: SFPQ
• NCBI Official Synonym Symbols: PSF; POMP100; PPP1R140
• NCBI Protein Information: splicing factor, proline- and glutamine-rich; hPOMp100; 100 kDa DNA-pairing protein; PTB-associated splicing factor; PTB-associated-splicing factor; DNA-binding p52/p100 complex, 100 kDa subunit; protein phosphatase 1, regulatory subunit 140; polypyrimidi
• UniProt Protein Name: Splicing factor, proline- and glutamine-rich
• Protein Family: Splicing factor
• UniProt Gene Name: SFPQ
• UniProt Synonym Gene Names: PSF; hPOMp100; PSF; PTB-associated-splicing factor
• UniProt Entry Name: SFPQ_HUMAN

Uniprot Description

PSF: a proline-and glutamine-rich splicing factor. Essential pre-mRNA splicing factor required early in spliceosome formation. Seems to also bind DNA. The active complex is a heterotetramer of two 52 kDa and two 100 kDa subunits. Reported to be a PKC-alpha-binding protein in the cell nucleus. Two alternatively spliced isoforms have been described.

Protein type: RNA splicing; RNA-binding; Nuclear receptor co-regulator

Chromosomal Location of Human Ortholog: 1p34.3

Cellular Component: nucleoplasm; nuclear matrix; cytoplasm; nucleus; paraspeckles; chromatin

Molecular Function: protein binding; histone deacetylase binding; nucleotide binding

Biological Process: alternative nuclear mRNA splicing, via spliceosome; transcription, DNA-dependent; RNA splicing; rhythmic process; negative regulation of circadian rhythm; negative regulation of transcription from RNA polymerase II promoter; DNA repair; mRNA processing; negative regulation of transcription, DNA-dependent; regulation of circadian rhythm; DNA recombination