Revision 3

#47147

Store at -20C

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Orders:

877-616-CELL (2355)

[email protected]

Support:

877-678-TECH (8324)

3 Trask Lane | Danvers | Massachusetts | 01923 | USA

For Research Use Only. Not for Use in Diagnostic Procedures.

Applications:
W, IP

Reactivity:
H M R Mk

Sensitivity:
Endogenous

MW (kDa):
62

Source/Isotype:
Rabbit

UniProt ID:
#Q12874

Entrez-Gene Id:
10946

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunoprecipitation 1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity/Sensitivity

SF3A3 Antibody recognizes endogenous levels of total SF3A3 protein.

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Leu495 of human SF3A3 protein. Antibodies are purified by peptide affinity chromatography.

Background

The mammalian splicing factor SF3a contains three primary subunits: SF3A1 (SF3a120), SF3A2 (SF3a66), and SF3A3 (SF3a60) which, along with SF3b, activate the U2 snRNP to form the pre-mRNA splicing complex (1,2). SF3A2 and SF3A3 both interact with SF3A1, but not with each other, and SF3A3 plays a major role in recruiting SF3A1 to the complex (3). Each protein in the heterotrimer has been shown to be essential for mRNA splicing and cell viability (4). Notably, SF3a plays a role in growth factor signaling as SF3A1 can bind to ERalpha when phosphorylated at Ser118 to affect downstream splicing (5). SF3a also plays a role in the innate immune response, as it promotes inflammation by splicing the TLR adaptor Myd88. Furthermore, SF3a regulates a number of genes involved in innate immune signaling pathways in macrophages versus other pathways (6,7).

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

W: Western Blotting IP: Immunoprecipitation

Cross-Reactivity Key

H: Human M: Mouse R: Rat Mk: Monkey

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.

All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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Orders: 877-616-CELL (2355) [email protected] Support: 877-678-TECH (8324) [email protected] Web: cellsignal.com
For Research Use Only. Not for Use in Diagnostic Procedures.

Revision 3

CST Logo
Western blot analysis of extracts from various cell lines using SF3A3 Antibody.
Western Blotting Image 1: SF3A3 Antibody
Immunoprecipitation of SF3A3 protein from HeLa cell extracts. Lane 1 is 10% input, lane 2 is Normal Rabbit IgG #2729, and lane 3 is SF3A3 Antibody. Western blot analysis was performed using SF3A3 Antibody. Mouse Anti-Rabbit IgG (Light-Chain Specific) (D4W3E) mAb (HRP Conjugate) #93702 was used as a secondary antibody.
Immunoprecipitation Image 1: SF3A3 Antibody
Orders: 877-616-CELL (2355) [email protected] Support: 877-678-TECH (8324) [email protected] Web: cellsignal.com
For Research Use Only. Not for Use in Diagnostic Procedures.