Product nameAnti-SSB antibody [mAbcam75927]
See all SSB primary antibodies
DescriptionMouse monoclonal [mAbcam75927] to SSB
Tested applicationsSuitable for: ICC/IF, IP, Flow Cyt, WB, IHC-Pmore details
Species reactivityReacts with: Human
Synthetic peptide corresponding to Human SSB aa 300 to the C-terminus (C terminal).
(Peptide available as
- This antibody gave a positive signal in the following lysates: HEK293 Whole Cell; HeLa Nuclear; Raji Nuclear; MCF7 Nuclear, MCF7 Whole Cell; Ramos Whole Cell; Human Fetal Heart Tissue. This antibody gave a positive result in IHC in the following FFPE tissue: Human breast adenocarcinoma.
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Constituents: PBS, 6.97% L-Arginine
Concentration information loading...
PurityImmunogen affinity purified
Our Abpromise guarantee covers the use of ab75927 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|ICC/IF||Use a concentration of 5 µg/ml.|
|IP||Use a concentration of 5 µg/ml.|
|Flow Cyt||Use 0.5µg for 106 cells.
ab170191 - Mouse monoclonal IgG2a, is suitable for use as an isotype control with this antibody.
|WB||Use a concentration of 1 - 5 µg/ml. Detects a band of approximately 47 kDa (predicted molecular weight: 47 kDa).|
|IHC-P||Use a concentration of 5 µg/ml.|
FunctionBinds to the 3' poly(U) terminii of nascent RNA polymerase III transcripts, protecting them from exonuclease digestion and facilitating their folding and maturation.
Sequence similaritiesContains 1 HTH La-type RNA-binding domain.
Contains 1 RRM (RNA recognition motif) domain.
modificationsPhosphorylated. The phosphorylation sites are at the C-terminal part of the protein.
The N-terminus is blocked.
- Information by UniProt
- Autoantigen La antibody
- La antibody
- La autoantigen antibody
All lanes : Anti-SSB antibody [mAbcam75927] (ab75927) at 5 µg/ml
Lane 1 : HEK293 (Human embryonic kidney cell line) Whole Cell Lysate
Lane 2 : HeLa (Human epithelial carcinoma cell line) Nuclear Lysate
Lane 3 : Raji (Human Burkitt's lymphoma cell line) Nuclear Lysate - tumor cell line (ab30127)
Lane 4 : MCF7 (Human breast adenocarcinoma cell line) Nuclear Lysate
Lane 5 : MCF7 (Human breast adenocarcinoma cell line) Whole Cell Lysate
Lane 6 : Ramos (Human Burkitt's lymphoma cell line) Whole Cell Lysate
Lane 7 : Heart (Human) Whole Cell Lysate - fetal normal tissue
Lysates/proteins at 20 µg per lane.
All lanes : Goat Anti-Mouse IgG H&L (HRP) preadsorbed (ab97040) at 1/5000 dilution
Developed using the ECL technique.
Performed under reducing conditions.
Predicted band size: 47 kDa
Observed band size: 47 kDa
Exposure time: 30 seconds
IHC image of SSB staining in Human breast adenocarcinoma formalin fixed paraffin embedded tissue section*. The section was pre-treated using pressure cooker heat mediated antigen retrieval with sodium citrate buffer (pH6) for 30mins. The section was incubated with ab75927, 0.5µg/ml overnight at +4°C. An HRP-conjugated secondary (Ab97245, 1/200 dilution) was used for 1hr at room temperature. The section was counterstained with haematoxylin and mounted with DPX.
*Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre
SSB was immunoprecipitated using 0.5mg Hek293 whole cell extract, 5µg of Mouse monoclonal to SSB and 50µl of protein G magnetic beads (+). No antibody was added to the control (-).
The antibody was incubated under agitation with Protein G beads for 10min, Hek293 whole cell extract lysate diluted in RIPA buffer was added to each sample and incubated for a further 10min under agitation.
Proteins were eluted by addition of 40µl SDS loading buffer and incubated for 10min at 70°C; 10µl of each sample was separated on a SDS PAGE gel, transferred to a nitrocellulose membrane, blocked with 5% BSA and probed with ab75927.
Secondary: Goat polyclonal to mouse IgG light chain specific (HRP) at 1/20,000 dilution.
Band: 47kDa; SSB
ICC/IF image of ab75927 stained HeLa cells. The cells were 100% methanol fixed (5 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 ab75927 at 5µg/ml overnight at +4°C. The secondary antibody (green) was DyLight® 488 goat anti- mouse IgG (H+L)(ab96879) 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. This antibody also gave a positive result in Hek293, HepG2, and MCF-7 cell types Methanol fixed (100%, 5 min) at 5ug/ml
Overlay histogram showing Ramos cells stained with ab75927 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab75927, 0.5µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG2a [ICIGG2A] (ab91361, 1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in Ramos cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.
IHC image of SSB staining in Human breast adenocarcinoma formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab75927, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.
For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.
This product has been referenced in:
- Liang XH et al. Translation can affect the antisense activity of RNase H1-dependent oligonucleotides targeting mRNAs. Nucleic Acids Res 46:293-313 (2018). Read more (PubMed: 29165591) »
- Liang XH et al. RNase H1-Dependent Antisense Oligonucleotides Are Robustly Active in Directing RNA Cleavage in Both the Cytoplasm and the Nucleus. Mol Ther 25:2075-2092 (2017). Read more (PubMed: 28663102) »