ASF/SF2 Monoclonal antibody

ASF/SF2 Monoclonal Antibody for WB, IP, IF, IHC, ELISA

Host / Isotype

Mouse / IgG1


Human, mouse, rat







Cat no : 66671-1-Ig


Alternative splicing factor 1, ASF, ASF 1, ASF/SF2, SF2, SF2p33, SFRS1, SRp30a, SRSF1

Tested Applications

Positive WB detected inHeLa cells, LNCaP cells, HEK-293 cells, HepG2 cells, Jurkat cells, HSC-T6 cells, PC-12 cells, NIH/3T3 cells, RAW 264.7 cells
Positive IP detected inHeLa cells
Positive IHC detected inhuman ovary tumor tissue, human gliomas tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inHepG2 cells

Recommended dilution

Western Blot (WB)WB : 1:5000-1:50000
Immunoprecipitation (IP)IP : 0.5-4.0 ug for 1.0-3.0 mg of total protein lysate
Immunohistochemistry (IHC)IHC : 1:200-1:800
Immunofluorescence (IF)IF : 1:200-1:800
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

66671-1-Ig targets ASF/SF2 in WB, IP, IF, IHC, ELISA applications and shows reactivity with Human, mouse, rat samples.

Tested Reactivity Human, mouse, rat
Host / Isotype Mouse / IgG1
Class Monoclonal
Type Antibody
Immunogen ASF/SF2 fusion protein Ag3626
Full Name splicing factor, arginine/serine-rich 1
Calculated Molecular Weight 248 aa, 28 kDa
Observed Molecular Weight 32 kDa, 28 kDa, 22 kDa
GenBank Accession NumberBC010264
Gene Symbol ASF/SF2
Gene ID (NCBI) 6426
Conjugate Unconjugated
Form Liquid
Purification MethodProtein G purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage. 20ul sizes contain 0.1% BSA.

Background Information

SFRS1, also named as ASF, SF2, SF2P33, SFRS1 and ASF-1, belongs to the splicing factor SR family. It plays a role in preventing exon skipping, ensuring the accuracy of splicing and regulating alternative splicing. SFRS1 interacts with other spliceosomal components, via the RS domains, to form a bridge between the 5'- and 3'-splice site binding components, U1 snRNP and U2AF. Isoform ASF-2 and isoform ASF-3 act as splicing repressors. This antibody can recognize all the 3 isoforms(28kd,33kd and 22kd) of SFRS1.


Product Specific Protocols
WB protocol for ASF/SF2 antibody 66671-1-IgDownload protocol
IHC protocol for ASF/SF2 antibody 66671-1-IgDownload protocol
IF protocol for ASF/SF2 antibody 66671-1-IgDownload protocol
IP protocol for ASF/SF2 antibody 66671-1-IgDownload protocol
Standard Protocols
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