• Species Reactivity

  Human

• Specificity

  Detects human IGSF3 in direct ELISAs. In direct ELISAs, no cross-reactivity with recombinant human (rh) IGSF4, 4B, 4C, 4D or 8 is observed.

• Source

  Monoclonal Mouse IgG1 Clone # 503621

• Immunogen

  Mouse myeloma cell line NS0-derived recombinant human IGSF3    
  Gln20-Ala1125    
  Accession # AAI44133

• Formulation

  Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

• Label

  Alexa Fluor 750

Applications

• Recommended    
  Concentration

  Sample

• Flow Cytometry

  0.25-1 µg/10    ⁶ cells

  A549 human lung carcinoma cell line

• 
  

Please Note: Optimal dilutions should be determined by each laboratory for each application.  are available in the Technical Information section on our website.

Preparation and Storage

• Shipping

  The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

• Stability & Storage

  Store the unopened product at 2 - 8 °C. Do not use past expiration date.

Background: IGSF3

IGSF3 (Immunoglobulin superfamily member 3; also EWI-3) is a 133 kDa (predicted) member of the EWI subfamily of the Ig-Superfamily of molecules. It is reported to be widely expressed, with concentration in placenta and lung. Human IGSF3 an 1194 amino acid (aa) type I transmembrane protein that contains a 19 aa signal sequence followed by a 1175 aa mature region (aa 20-1194). The molecule's extracellular region is 1105 aa in length (aa 20-1124), and contains eight C2-type Ig-like domains (aa 22-1097). This region also possesses at least two utilized phosphorylation sites at Thr617and Ser625, plus an EWI motif in the second Ig-like domain. IGSF3 likely exists as a disulfide-linked homodimer. There are two potential isoform variants. One contains a 20 aa insertion after Pro406, while another shows the same insert coupled to a premature truncation after Pro833. Over aa 20‑1125, human IGSF3 shares 92% aa identity with mouse IGSF3.

• Long Name:

  Immunoglobulin Superfamily, Member 3

• Entrez Gene IDs:

  3321 (Human); 78908 (Mouse); 295325 (Rat)

• Alternate Names:

  EWI-3; glu-Trp-Ile EWI motif-containing protein 3; IGSF3; immunoglobulin superfamily, member 3; member 3; V8