Date published: 2026-4-5

1-800-457-3801

SCBT Portrait Logo
Seach Input

Sos 2 Antibody (A-8): sc-55478

3.0(2)
Write a reviewAsk a question

Datasheets
  • Sos 2 Antibody (A-8) is a mouse monoclonal IgG2a κ provided at 200 µg/ml
  • raised against amino acids 1091-1170 mapping near the C-terminus of Sos 2 of human origin
  • recommended for detection of Sos 2 of human origin by WB, IP, IF and ELISA
  • m-IgG Fc BP-HRP is the preferred secondary detection reagent for Sos 2 Antibody (A-8) for WB applications. This reagent is now offered in a bundle with Sos 2 Antibody (A-8) (see ordering information below).
    Gene Editing Promo Banner

    QUICK LINKS

    SEE ALSO...

    Sos 2 Antibody (A-8) is a mouse monoclonal IgG2a antibody that detects Sos 2 in human samples through applications such as western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), and enzyme-linked immunosorbent assay (ELISA). Sos 2, a member of the guanine nucleotide exchange factor family, plays a crucial role in the activation of Ras proteins, which are pivotal in regulating various cellular processes, including growth, differentiation, and survival. Sos 2 is primarily located in the cytoplasm, where Sos 2 facilitates the exchange of GDP for GTP on Ras, thereby promoting its active form. This activation is essential for the downstream signaling pathways that lead to cellular responses, making anti-Sos 2 antibody (A-8) a key player in signal transduction. Furthermore, Sos 2 interacts with other proteins, such as receptor tyrosine kinases, which are vital for initiating the signaling cascade that leads to Ras activation. The ability of Sos 2 to modulate Ras activity underscores Sos 2′s importance in both normal cellular function and the pathogenesis of various diseases, including cancer, where aberrant Ras signaling is often observed. Anti-Sos 2 antibody (A-8) serves as an invaluable tool for researchers studying the intricate mechanisms of Ras signaling and its implications in health and disease.

    For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

    Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

    LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

    Sos 2 Antibody (A-8) References:

    1. Candidate gene association study of insulin signaling genes and Alzheimer's disease: evidence for SOS2, PCK1, and PPARgamma as susceptibility loci.  |  Hamilton, G., et al. 2007. Am J Med Genet B Neuropsychiatr Genet. 144B: 508-16. PMID: 17440948
    2. Triggering Ras signalling by intracellular Francisella tularensis through recruitment of PKCα and βI to the SOS2/GrB2 complex is essential for bacterial proliferation in the cytosol.  |  Al-Khodor, S. and Abu Kwaik, Y. 2010. Cell Microbiol. 12: 1604-21. PMID: 20618341
    3. Rare variants in SOS2 and LZTR1 are associated with Noonan syndrome.  |  Yamamoto, GL., et al. 2015. J Med Genet. 52: 413-21. PMID: 25795793
    4. SOS2 and ACP1 Loci Identified through Large-Scale Exome Chip Analysis Regulate Kidney Development and Function.  |  Li, M., et al. 2017. J Am Soc Nephrol. 28: 981-994. PMID: 27920155
    5. SOS GEFs in health and disease.  |  Baltanás, FC., et al. 2020. Biochim Biophys Acta Rev Cancer. 1874: 188445. PMID: 33035641
    6. First prenatal case of Noonan syndrome with SOS2 mutation: Implications of early diagnosis for genetic counseling.  |  Gentile, M., et al. 2021. Am J Med Genet A. 185: 1897-1902. PMID: 33750022
    7. SOS2 Comes to the Fore: Differential Functionalities in Physiology and Pathology.  |  Baltanás, FC., et al. 2021. Int J Mol Sci. 22: PMID: 34205562
    8. Sulfarotene, a synthetic retinoid, overcomes stemness and sorafenib resistance of hepatocellular carcinoma via suppressing SOS2-RAS pathway.  |  Qi, F., et al. 2021. J Exp Clin Cancer Res. 40: 280. PMID: 34479623
    9. Lymphatic anomalies during lifetime in patients with Noonan syndrome: Retrospective cohort study.  |  Swarts, JW., et al. 2022. Am J Med Genet A. 188: 3242-3261. PMID: 35979676
    10. Chromosomal localization of two genes encoding human ras exchange factors: SOS1 maps to the 2p22-->p16 region and SOS2 to the 14q21-->q22 region of the human genome.  |  Chardin, P. and Mattei, MG. 1994. Cytogenet Cell Genet. 66: 68-9. PMID: 8275713

    Ordering Information

    Product NameCatalog #UNITPriceQtyFAVORITES

    Sos 2 Antibody (A-8)

    sc-55478
    200 µg/ml
    $322.00

    Sos 2 Antibody (A-8): m-IgG Fc BP-HRP Bundle

    sc-539020
    200 µg Ab; 10 µg BP
    $361.00

    How much sample do you recommend loading on the gel for Western blot detection using Sos 2 (A-8): sc-55478?

    Asked by: Cweed
    We recommend loading 40–60 µg whole cell lysate, 10–20 µg nuclear extract, 5-10 µg transfected lysate, or 10–20 ng purified protein per lane. A link to our complete Western blotting protocol is provided here for your reference: https://www.scbt.com/scbt/resources/protocols/western-immuno-blotting
    Answered by: Technical Support
    Date published: 2017-03-01
    • y_2026, m_3, d_26, h_7CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.43
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_55478, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_scbt
    • bvseo_sdk, java_sdk, bvseo-4.0.0
    • CLOUD, getContent, 92ms
    • QUESTIONS, PRODUCT
    Rated 1 out of 5 by from Clone A-8 did not work for me at all in a Westernclone A-8 did NOT work in a Western using HeLa and LN229 I've been struggling to see a signal for SOS2 in HeLa lysates. A coworker tested several antibodies from other vendors and chose one that just wasn't very potent. I tested 3 SCBT antibodies (clones A-8, B-6, and G-7) in a single experiment: HeLa cells vs LN229 cells, treated with an inhibitor or DMSO control and then stimulated with EGF for 5'; 40µg whole cell lysate (using NP40) per lane on a 3%-8% tris-acetate gel run at 85V for 1.2hrs, then turned up to 135V till the dye ran off the bottom. Protein transfer was to a single PVDF membrane in an iBlot2 with a custom program (created to transfer large proteins). After transfer, the blot was cut into 3 blocks. All blocks were blocked with 5% BSA in TBS for 1.5hrs, then Tween-20 was added to 0.1%, primary antibody was added at a 1:400 dilution, and the blots were incubated overnight in a cold room on a rocker. The following day, the blots were washed 4 times (5' each) with TBST, then incubated with Licor IR800 secondary antibody. Incubation was for 1.5hrs after which they were washed 4 times (5' each) and imaged using a Licor Odyssey. Only the B6 antibody showed banding. Clone A-8 produced no banding at all as seen in the attached image.
    Date published: 2020-01-03
    Rated 5 out of 5 by from Good Western blot data of human recombinantGood Western blot data of human recombinant Sos 2 fusion protein. -SCBT QC
    Date published: 2013-07-07
    • y_2026, m_3, d_26, h_7
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_55478, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_scbt
    • bvseo_sdk, java_sdk, bvseo-4.0.0
    • CLOUD, getReviews, 9ms
    • REVIEWS, PRODUCT
    Sos 2 Antibody (A-8) is rated 3.0 out of 5 by 2.
    • y_2026, m_3, d_26, h_7
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.43
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_55478, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_scbt
    • bvseo_sdk, java_sdk, bvseo-4.0.0
    • CLOUD, getAggregateRating, 132ms
    • REVIEWS, PRODUCT