| Host: |
Rabbit |
| Applications: |
WB/IHC/IF/IP |
| Reactivity: |
Human/Mouse/Rat |
| Note: |
STRICTLY FOR FURTHER SCIENTIFIC RESEARCH USE ONLY (RUO). MUST NOT TO BE USED IN DIAGNOSTIC OR THERAPEUTIC APPLICATIONS. |
| Short Description: |
Rabbit polyclonal antibody anti-SFPQ (578-707) is suitable for use in Western Blot, Immunohistochemistry, Immunofluorescence and Immunoprecipitation research applications. |
| Clonality: |
Polyclonal |
| Conjugation: |
Unconjugated |
| Isotype: |
IgG |
| Formulation: |
PBS with 0.02% Sodium Azide, 50% Glycerol, pH7.3. |
| Purification: |
Affinity purification |
| Dilution Range: |
WB 1:500-1:1000IHC-P 1:50-1:200IF/ICC 1:50-1:100IP 1:500-1:1000 |
| Storage Instruction: |
Store at-20°C for up to 1 year from the date of receipt, and avoid repeat freeze-thaw cycles. |
| Gene Symbol: |
SFPQ |
| Gene ID: |
6421 |
| Uniprot ID: |
SFPQ_HUMAN |
| Immunogen Region: |
578-707 |
| Immunogen: |
Recombinant fusion protein containing a sequence corresponding to amino acids 578-707 of human SFPQ (NP_005057.1). |
| Immunogen Sequence: |
MMIRQREMEEQMRRQREESY SRMGYMDPRERDMRMGGGGA MNMGDPYGSGGQKFPPLGGG GGIGYEANPGVPPATMSGSM MGSDMRTERFGQGGAGPVGG QGPRGMGPGTPAGYGRGREE YEGPNKKPRF |
| Post Translational Modifications | The N-terminus is blocked. Phosphorylated on multiple serine and threonine residues during apoptosis. In vitro phosphorylated by PKC. Phosphorylation stimulates binding to DNA and D-loop formation, but inhibits binding to RNA. Phosphorylation of C-terminal tyrosines promotes its cytoplasmic localization, impaired its binding to polypyrimidine RNA and led to cell cycle arrest. In resting T-cells is phosphorylated at Thr-687 by GSK3B which is proposed to promote association with THRAP and to prevent binding to PTPRC/CD45 pre-mRNA.T-cell activation leads to reduced phosphorylation at Thr-687. |
| Function | 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 a heteromer with NONO. Binds to pre-mRNA in spliceosome C complex, and specifically binds to intronic polypyrimidine tracts. Involved in regulation of signal-induced alternative splicing. During splicing of PTPRC/CD45, a phosphorylated form is sequestered by THRAP3 from the pre-mRNA in resting T-cells.T-cell activation and subsequent reduced phosphorylation is proposed to lead to release from THRAP3 allowing binding to pre-mRNA splicing regulatotry elements which represses exon inclusion. 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 binds DNA. The SFPQ-NONO heteromer may be involved in DNA non-homologous 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. Functions as transcriptional activator. Transcriptional repression is mediated by an interaction of SFPQ with SIN3A and subsequent recruitment of histone deacetylases (HDACs). The SFPQ-NONO-NR5A1 complex binds to the CYP17 promoter and regulates basal and cAMP-dependent transcriptional activity. 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. Regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK-BMAL1 heterodimer. Required for the transcriptional repression of circadian target genes, such as PER1, mediated by the large PER complex through histone deacetylation. Required for the assembly of nuclear speckles. Plays a role in the regulation of DNA virus-mediated innate immune response by assembling into the HDP-RNP complex, a complex that serves as a platform for IRF3 phosphorylation and subsequent innate immune response activation through the cGAS-STING pathway. |
| Protein Name | Splicing Factor - Proline- And Glutamine-Rich100 Kda Dna-Pairing ProteinHpomp100Dna-Binding P52/P100 Complex - 100 Kda SubunitPolypyrimidine Tract-Binding Protein-Associated-Splicing FactorPsfPtb-Associated-Splicing Factor |
| Database Links | Reactome: R-HSA-8849468Reactome: R-HSA-9635465 |
| Cellular Localisation | Nucleus SpeckleNucleus MatrixCytoplasmPredominantly In Nuclear Matrix |
| Alternative Antibody Names | Anti-Splicing Factor - Proline- And Glutamine-Rich antibodyAnti-100 Kda Dna-Pairing Protein antibodyAnti-Hpomp100 antibodyAnti-Dna-Binding P52/P100 Complex - 100 Kda Subunit antibodyAnti-Polypyrimidine Tract-Binding Protein-Associated-Splicing Factor antibodyAnti-Psf antibodyAnti-Ptb-Associated-Splicing Factor antibodyAnti-SFPQ antibodyAnti-PSF antibody |
Information sourced from Uniprot.org
12 months for antibodies. 6 months for ELISA Kits. Please see website T&Cs for further guidance
