Cat. # | Size | Qty. | Price |
---|---|---|---|
23020S | 100 µl |
|
REACTIVITY | H M R Mk |
SENSITIVITY | Endogenous |
MW (kDa) | 65, 75, 100 |
SOURCE | Rabbit |
Product Information
Application | Dilution |
---|---|
Western Blotting | 1:1000 |
For western blots, incubate membrane with diluted primary antibody in 5% w/v nonfat dry milk, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
NOTE: Please refer to primary antibody product webpage for recommended antibody dilution.
NOTE: Prepare solutions with reverse osmosis deionized (RODI) or equivalent grade water.
Load 20 µl onto SDS-PAGE gel (10 cm x 10 cm).
NOTE: Loading of prestained molecular weight markers (#59329, 10 µl/lane) to verify electrotransfer and biotinylated protein ladder (#7727, 10 µl/lane) to determine molecular weights are recommended.
NOTE: Volumes are for 10 cm x 10 cm (100 cm2) of membrane; for different sized membranes, adjust volumes accordingly.
* Avoid repeated exposure to skin.
posted June 2005
revised June 2020
Protocol Id: 263
Human, Mouse, Rat, Monkey
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human SFPQ protein. Antibodies are purified by peptide affinity chromatography.
Splicing factor proline-glutamine rich (SFPQ), also commonly referred to as PTB-associated splicing factor (PSF), is an essential and ubiquitous nucleic acid-binding protein that is involved in a wide range of cellular processes. SFPQ belongs to the Drosophila melanogaster behavior, human splicing (DBHS) protein family along with paraspeckle protein 1 (PSPC1) and non-POU domain-containing octamer-binding protein (NONO) (1). DBHS proteins are a unique family of RNA-binding proteins that recruit various proteins and nucleic acids involved in transcriptional activation and repression, as well as transcript localization and splicing, and DNA damage repair (2). SFPQ and NONO are also core components of paraspeckles, which are subnuclear bodies distinct from nuclear speckles that are defined by the colocalization of SFPQ, NONO, and other proteins with the long noncoding RNA NEAT1 (2). The biological function of paraspeckles is currently unknown, but they are believed to be important for gene regulation in the presence of cellular stressors (3). Although SFPQ is typically localized to the nucleus, multiple studies indicate that cytoplasmic SFPQ levels are important for proper motor neuron differentiation and maintenance (4,5). SFPQ has also been linked to multiple neurological disorders, including Alzheimer’s disease (AD) and amyotrophic lateral sclerosis (ALS) (6-9).
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