• Product nameAnti-RNPS1 antibody
    See all RNPS1 primary antibodies
  • Description
    Rabbit polyclonal to RNPS1
  • Tested applicationsSuitable for: ICC/IF, WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Cow, Orangutan
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 150 - 250 of Human RNPS1.

    (Peptide available as ab88206.)

  • Positive control
    • This antibody gave a positive signal in the following whole cell lysates: HeLa; Jurkat; HepG2; A431; U20S; JEG3; MCF7.



Our Abpromise guarantee covers the use of ab79233 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
ICC/IF Use a concentration of 5 µg/ml.
WB Use a concentration of 1 µg/ml. Detects a band of approximately 50 kDa (predicted molecular weight: 34 kDa).


  • FunctionComponent of a splicing-dependent multiprotein exon junction complex (EJC) deposited at splice junction on mRNAs. The EJC is a dynamic structure consisting of a few core proteins and several more peripheral nuclear and cytoplasmic associated factors that join the complex only transiently either during EJC assembly or during subsequent mRNA metabolism. Part of pre- and post-splicing multiprotein mRNP complexes. Enhances the formation of the ATP-dependent A complex of the spliceosome. Involved in both constitutive splicing and, in association with SRP54 and TRA2B/SFRS10, in distinctive modulation of alternative splicing in a substrate-dependent manner. Participates in mRNA 3'-end cleavage. Involved in UPF2-dependent nonsense-mediated decay (NMD) of mRNAs containing premature stop codons. Also mediates increase of mRNA abundance and translational efficiency. Binds spliced mRNA 20-25 nt upstream of exon-exon junctions.
  • Tissue specificityUbiquitous.
  • Sequence similaritiesBelongs to the splicing factor SR family.
    Contains 1 RRM (RNA recognition motif) domain.
  • Post-translational
    Phosphorylated on one or more of the four Ser/Thr residues (Ser-43, Thr-49, Ser-52 or Ser-53). Ser-53 phosphorylation site is important for splicing and translation stimulation activity in vitro.
  • Cellular localizationNucleus. Nucleus speckle. Cytoplasm. Nucleocytoplasmic shuttling protein. Colocalizes with the core EJC, ALYREF/THOC4, NXF1 and UAP56 in the nucleus and nuclear speckles.
  • Information by UniProt
  • Database links
  • Alternative names
    • E5.1 antibody
    • MGC117332 antibody
    • RNA binding protein S1 serine rich domain antibody
    • RNA binding protein with serine rich domain 1 antibody
    • RNA-binding protein with serine-rich domain 1 antibody
    • RNPS 1 antibody
    • rnps1 antibody
    • RNPS1_HUMAN antibody
    • SR protein antibody
    • SR related protein LDC2 antibody
    • SR-related protein LDC2 antibody
    see all

Anti-RNPS1 antibody images

  • All lanes : Anti-RNPS1 antibody (ab79233) at 1 µg/ml

    Lane 1 : : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
    Lane 2 : Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate
    Lane 3 : HepG2 (Human hepatocellular liver carcinoma cell line) Whole Cell Lysate
    Lane 4 : A431 (Human epithelial carcinoma cell line) Whole Cell Lysate
    Lane 5 : U2OS (Human osteosarcoma cell line) Whole Cell Lysate
    Lane 6 : JEG-3 (Human placental choriocarcinoma cell line) Whole Cell Lysate

    Lysates/proteins at 10 µg per lane.

    Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
    developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 34 kDa
    Observed band size : 50 kDa (why is the actual band size different from the predicted?)
    Additional bands at : 47 kDa (possible isoform).

    Exposure time : 5 minutes
  • ICC/IF image of ab79233 stained HeLa cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal Goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab79233, 5µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 Goat anti-Rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

References for Anti-RNPS1 antibody (ab79233)

ab79233 has not yet been referenced specifically in any publications.

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