Splicing Factor Proline And Glutamine Rich (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.

Target	Splicing Factor Proline And Glutamine Rich (SFPQ)
Clonality	Polyclonal
Reactivity	Human
Tested Applications	ELISA, WB
Host	Rabbit
Recommended dilutions	WB: 1/2000. Optimal dilutions/concentrations should be determined by the end user.
Conjugation	Unconjugated
Immunogen	KLH-conjugated synthetic peptide between 676-705 amino acids from the C-terminal region of human SFPQ.
Isotype	IgG
Form	Liquid
Purification	Purified through a protein A column, followed by peptide affinity purification.
Storage	Aliquot and store at -20°C. Avoid repeated freeze/thaw cycles.
UniProt Primary AC	P23246 (UniProt, ExPASy)
UniProt Secondary AC	P30808, Q5SZ71
UniProt Entry Name	SFPQ_HUMAN
Gene Symbol	SFPQ
KEGG	hsa:6421
String	9606.ENSP00000349748
Molecular Weight	Calculated MW: 76.1 kDa
Buffer	PBS containing 0.09% sodium azide.
Specificity	Predicted to react with Mouse SFPQ.
Availability	Shipped within 5-10 working days.
Note	This product is for research use only.

Research Articles on Splicing Factor Proline And Glutamine Rich (SFPQ)

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