• Product name

  • Description

    Rabbit polyclonal to SOS1
  • Host species

  • Tested applications

    Suitable for: IP, WBmore details
  • Species reactivity

    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthetic peptide within Human SOS1 aa 1283-1333. The exact sequence is proprietary. NP_005624.2
    Database link: Q07889

  • Positive control

    • WB: HeLa and HEK-293T whole cell lysate. IP: HeLa whole cell lysate.



Our Abpromise guarantee covers the use of ab245645 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
IP Use at 2-5 µg/mg of lysate.
WB 1/2000 - 1/10000. Predicted molecular weight: 152 kDa.


  • Function

    Promotes the exchange of Ras-bound GDP by GTP.
  • Tissue specificity

    Expressed in gingival tissues.
  • Involvement in disease

    Defects in SOS1 are the cause of gingival fibromatosis 1 (GGF1) [MIM:135300]; also known as GINGF1. Gingival fibromatosis is a rare overgrowth condition characterized by a benign, slowly progressive, nonhemorrhagic, fibrous enlargement of maxillary and mandibular keratinized gingiva. GGF1 is usually transmitted as an autosomal dominant trait, although sporadic cases are common.
    Defects in SOS1 are the cause of Noonan syndrome type 4 (NS4) [MIM:610733]. NS4 is an autosomal dominant disorder characterized by dysmorphic facial features, short stature, hypertelorism, cardiac anomalies, deafness, motor delay, and a bleeding diathesis. It is a genetically heterogeneous and relatively common syndrome, with an estimated incidence of 1 in 1000-2500 live births. Rarely, NS4 is associated with juvenile myelomonocytic leukemia (JMML). SOS1 mutations engender a high prevalence of pulmonary valve disease; atrial septal defects are less common.
  • Sequence similarities

    Contains 1 DH (DBL-homology) domain.
    Contains 1 N-terminal Ras-GEF domain.
    Contains 1 PH domain.
    Contains 1 Ras-GEF domain.
  • Information by UniProt
  • Database links

  • Alternative names

    • alternate SOS1 antibody
    • GF1 antibody
    • GGF1 antibody
    • GINGF antibody
    • gingival fibromatosis antibody
    • gingival fibromatosis hereditary 1 antibody
    • Guanine nucleotide exchange factor antibody
    • HGF antibody
    • NS4 antibody
    • Son of sevenless homolog 1 (Drosophila) antibody
    • Son of sevenless homolog 1 antibody
    • SOS Ras/Rac guanine nucleotide exchange factor 1 antibody
    • SOS-1 antibody
    • Sos1 antibody
    • SOS1_HUMAN antibody
    see all


  • All lanes : Anti-SOS1 antibody (ab245645) at 0.04 µg/ml

    Lane 1 : HeLa (Human epithelial cell line from cervix adenocarcinoma) whole cell lysate at 50 µg
    Lane 2 : HeLa whole cell lysate at 15 µg
    Lane 3 : HeLa whole cell lysate at 5 µg
    Lane 4 : HEK-293T (Human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate at 50 µg

    Developed using the ECL technique.

    Predicted band size: 152 kDa

    Exposure time: 3 minutes
  • SOS1 was immunoprecipitated from HeLa (Human epithelial cell line from cervix adenocarcinoma) whole cell lysate (1 mg per IP reaction; 20% of IP loaded).

    ab245645 used for IP at 3 µg/mg lysate. For WB 1 µg/ml.

    Lane 1: ab245645 IP in HeLa whole cell lysate.
    Lane 2: Control IgG in HeLa whole cell lysate.

    Chemiluminescence detection: 30 seconds.


ab245645 has not yet been referenced specifically in any publications.

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