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SF3B1 Antibody (N-term)

Peptide Affinity Purified Rabbit Polyclonal Antibody (Pab)

  • WB - SF3B1 Antibody (N-term) AP13754a
    All lanes : Anti-SF3B1 Antibody (N-term) at 1:2000 dilution Lane 1: PANC-1 whole cell lysate Lane 2: Hela whole cell lysate Lane 3: Jurkat whole cell lysate Lane 4: NIH/3T3 whole cell lysate Lane 5: H-4-Ⅱ-E whole cell lysate Lane 6: A431 whole cell lysate Lane 7: HepG2 whole cell lysate Lysates/proteins at 20 µg per lane. Secondary Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated at 1/10000 dilution. Predicted band size : 146 kDa Blocking/Dilution buffer: 5% NFDM/TBST.
  • WB - SF3B1 Antibody (N-term) AP13754a
    SF3B1 Antibody (N-term) (Cat. #AP13754a) western blot analysis in CEM cell line lysates (35ug/lane).This demonstrates the SF3B1 antibody detected the SF3B1 protein (arrow).
  • IHC-P - SF3B1 Antibody (N-term) AP13754a
    SF3B1 Antibody (N-term) (AP13754a)immunohistochemistry analysis in formalin fixed and paraffin embedded human esophagus carcinoma followed by peroxidase conjugation of the secondary antibody and DAB staining.This data demonstrates the use of SF3B1 Antibody (N-term) for immunohistochemistry. Clinical relevance has not been evaluated.
Product Information
  • Applications Legend:
  • WB=Western Blot
  • IHC=Immunohistochemistry
  • IHC-P=Immunohistochemistry (Paraffin-embedded Sections)
  • IHC-F=Immunohistochemistry (Frozen Sections)
  • IF=Immunofluorescence
  • FC=Flow Cytopmetry
  • IC=Immunochemistry
  • ICC=Immunocytochemistry
  • IP=Immunoprecipitation
  • DB=Dot Blot
  • CHIP=Chromatin Immunoprecipitation
  • FA=Fluorescence Assay
  • IEM=Immunoelectronmicroscopy
  • EIA=Enzyme Immunoassay
Primary Accession O75533
Other Accession O57683, Q99NB9, NP_036565.2
Reactivity Human, Mouse
Predicted Mouse, Xenopus
Host Rabbit
Clonality Polyclonal
Isotype Rabbit Ig
Calculated MW 145830 Da
Antigen Region 374-402 aa
Additional Information
Gene ID 23451
Other Names Splicing factor 3B subunit 1, Pre-mRNA-splicing factor SF3b 155 kDa subunit, SF3b155, Spliceosome-associated protein 155, SAP 155, SF3B1, SAP155
Target/Specificity This SF3B1 antibody is generated from rabbits immunized with a KLH conjugated synthetic peptide between 374-402 amino acids from the N-terminal region of human SF3B1.
Dilution WB~~1:1000
Format Purified polyclonal antibody supplied in PBS with 0.09% (W/V) sodium azide. This antibody is purified through a protein A column, followed by peptide affinity purification.
StorageMaintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
PrecautionsSF3B1 Antibody (N-term) is for research use only and not for use in diagnostic or therapeutic procedures.
Protein Information
Name SF3B1
Synonyms SAP155
Function Subunit of the splicing factor SF3B required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the 'E' complex. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron.
Cellular Location Nucleus speckle. Note=During mitosis, transiently dispersed from the nuclear speckles to the cytoplasm
Citations (0)

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This gene encodes subunit 1 of the splicing factor 3b protein complex. Splicing factor 3b, together with splicing factor 3a and a 12S RNA unit, forms the U2 small nuclear ribonucleoproteins complex (U2 snRNP). The splicing factor 3b/3a complex binds pre-mRNA upstream of the intron's branch site in a sequence independent manner and may anchor the U2 snRNP to the pre-mRNA. Splicing factor 3b is also a component of the minor U12-type spliceosome. The carboxy-terminal two-thirds of subunit 1 have 22 non-identical, tandem HEAT repeats that form rod-like, helical structures. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq].


Corsini, L., et al. J. Biol. Chem. 284(1):630-639(2009)
Tanuma, N., et al. J. Biol. Chem. 283(51):35805-35814(2008)
Pessa, H.K., et al. Proc. Natl. Acad. Sci. U.S.A. 105(25):8655-8660(2008)
Kuwasako, K., et al. Proteins 71(4):1617-1636(2008)
Avila, M.L., et al. Biochem. Biophys. Res. Commun. 364(1):26-32(2007)

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$ 295.00
$ 99.00
Cat# AP13754a
(40 western blots)
Availability: In Stock
Bulk Size
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