Human Testican 2/SPOCK2 Biotinylated Antibody

  
  • Species Reactivity
    Human
  • Specificity
    Detects human Testican 2/SPOCK2 in Western blots. In Western blots, less than 5% cross-reactivity with recombinant human (rh) Testican 1 and rhTestican 3 is observed.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    Mouse myeloma cell line NS0-derived recombinant human Testican 2/SPOCK2
    Glu23-Trp424
    Accession # Q92563
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
  • Label
    Biotin
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Rat Testican 2/SPOCK2 by Western Blot. Western blot shows lysates of rat lung tissue. PVDF membrane was probed with 0.1 µg/mL of Goat Anti-Human Testican 2/SPOCK2 Biotinylated Antigen Affinity-purified Polyclonal Antibody (Catalog # BAF2328) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF019). A specific band was detected for Testican 2/SPOCK2 at approximately 140 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 8.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Testican 2/SPOCK2

Testican 2 (also SPOCK2) is a 60-140 kDa, secreted multidomain proteoglycan that belongs to the BM-40/SPARC family of extracellular proteins. It is expressed by neurons (both excitatory and GABAergic) plus brain endothelial cells, and appears to abrogate testican 1 and 3 mediated inhibition of MT1- and MT3-MMP activity. Mature human Testican 2 is 402 amino acids (aa) in length (aa 23-424). It contains a unique 66 aa N terminus, followed by a Kazal-like follistatin domain (aa 89-192), a collagen-binding domain (aa 210-219), a Ca++ binding region, one thyroglobulin-like segment (aa 310-376) and an acidic C-terminus that contains two potential GAG attachment sites at Ser383 and Ser388. The wide variation in native MW reflects the capabilities of differing cells to add glycan adducts to the molecule. Typically, it appears to lie belween 80-125 kDa. There are potential splice variants. One shows an alternative start site at Met110, a second shows a deletion of aa 64-66, while a third contains a 14 aa substitution for aa 64-242. Mature human Testican 2 is 94% aa identical to mouse and rat Testican 2.

  • Entrez Gene IDs:
    9806 (Human)
  • Alternate Names:
    FLJ97039; KIAA0275; KIAA0275CWCV, and Kazal-like domains proteoglycan 2; sparc/osteonectin, cwcv and kazal-like domains proteoglycan (testican) 2; SPOCK2; Testican 2
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