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You are here:Home » Antibodies » Abs to Splicing Factors » Anti -SFPQ (Splicing Factor Proline and Glutamine Rich, Splicing Factor Proline/glutamine Rich (Polypyrimidine Tract-binding Protein-associated), 100kD DNA Pairing Protein, DNA Binding p52/p100 Complex 100kD Subunit, hPOMp100, Polypyrimidine Tract Binding Prote

Anti -SFPQ (Splicing Factor Proline and Glutamine Rich, Splicing Factor Proline/glutamine
Rich (Polypyrimidine Tract-binding Protein-associated), 100kD DNA Pairing Protein, DNA
Binding p52/p100 Complex 100kD Subunit, hPOMp100, Polypyrimidine Tract Binding Prote

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Specifications

Clone Host Grade Applications
Monoclonal Mouse Affinity Purified E B
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.
Catalog #S1012-85B
ApplicationsSuitable for use in ELISA and Western Blot. Other applications not tested.
Recommended DilutionWestern Blot: 1:500-1:1000
ELISA: 1ug/ml-3ng/ml
Optimal dilutions to be determined by the researcher.
HybridomaSp2/0 myeloma cells with spleen cells from Balb/c mice.
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20°C. Aliquots are stable for at least 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Clone TypeMonoclonal
IsotypeIgG2a
Clone No10B2482
HostMouse
SourceHuman
ConcentrationAs reported
FormSupplied as a liquid in PBS, pH 7.2. No preservative added (Azide free).
PurityPurified by Protein A affinity chromatography.
ImmunogenRecombinant protein corresponding to a portion of amino acids within aa269-362 of human SFPQ.
SpecificityRecognizes human SFPQ.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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