Human/Mouse/Rat Testican 2/SPOCK2 Antibody

Catalog # Availability Size / Price Qty
AF2328
AF2328-SP
Detection of Rat Testican 2/SPOCK2 by Western Blot.
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Human/Mouse/Rat Testican 2/SPOCK2 Antibody Summary

Species Reactivity
Human, Mouse, Rat
Specificity
Detects human, mouse, and rat Testican 2/SPOCK2 in direct ELISAs and human Testican 2/SPOCK2 in Western blots.
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 Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Applications

Recommended Concentration
Sample
Western Blot
1 µg/mL
See below
Immunoprecipitation
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human Testican 2/SPOCK2 (Catalog # 2328-PI), see our available Western blot detection antibodies

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.

Scientific Data

Western Blot Detection of Rat Testican 2/SPOCK2 antibody by Western Blot. View Larger

Detection of Rat Testican 2/SPOCK2 by Western Blot. Western blot shows lysates of rat lung tissue. PVDF Membrane was probed with 1 µg/mL of Goat Anti-Human/Mouse/Rat Testican 2/SPOCK2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF2328) 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.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
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Shipping
Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store 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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