Human GASP-1/WFIKKN2 Antibody

Catalog # Availability Size / Price Qty
MAB2070
MAB2070-SP
Product Details
Citations (1)
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Human GASP-1/WFIKKN2 Antibody Summary

Species Reactivity
Human
Specificity
Detects human GASP‑1/WFIKKN2 in direct ELISAs and Western blots. In direct ELISAs, no cross-reactivity with recombinant human (rh) GASP-2 is observed.
Source
Monoclonal Mouse IgG2A Clone # 288513
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
Mouse myeloma cell line NS0-derived recombinant human GASP‑1/WFIKKN2
Leu35-His576
Accession # Q8TEU8
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.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Immunoprecipitation
25 µg/mL
Conditioned cell culture medium spiked with Recombinant Human GASP‑1/WFIKKN2 (Catalog # 2070-GS), 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.

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 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: GASP-1/WFIKKN2

Growth and differentiation factor-associated serum protein-1 (GASP-1) was isolated in a screen to identify proteins in mice that copurify with myostatin (GDF-8), a potent negative regulator of skeletal muscle mass (1). The GASP-1 cDNA encodes a 571 amino acid (aa) protein that contains a 29 aa signal sequence and is comprised of many conserved domains: WAP, follistatin/Kazal, immunoglobulin, two tandem Kunitz, and netrin (1). Two related human proteins which contain the same domain structure are called WFIKKN (based on the presence and order of these conserved domains) and WFIKKNRP (WFIKKN-related protein) (2). Mouse GASP-1 is homologous to human WFIKKNRP and mouse GASP-2 to human WFIKKN. Human GASP-1 is the same protein as WFIKKNRP. WAP, follistatin, Kazal and netrin domains are all implicated in protease inhibition, and these proteins may be multivalent protease inhibitors (3). GASP-1 and -2 show distinct expression patterns both in the developing fetus and the adult. In the developing fetus, GASP-1 expression is highest in the brain, skeletal muscle, thymus and kidney while GASP‑2 is abundant in the lung, skeletal muscle and liver (4). In the adult, GASP-1 is primarily expressed in the ovary, testis, and brain while GASP‑2 is in the pancreas, liver, and thymus (4). GASP-1 inhibits myostatin and the highly related protein, GDF-11, but not Activin or TGF-beta in vitro (1). In addition, GASP-1 binds directly but independently to both mature myostatin and the myostatin propeptide (1). By aa sequence, human GASP-1 is 90% and 55% identical to mouse GASP-1 and human GASP-2, respectively.

References
  1. Hill, J.J. et al. (2003) Mol. Endo. 17:1144.
  2. Trexler, M. et al. (2001) Proc. Natl. Acad. Sci. 98:3705.
  3. Nagy, A. et al. (2003) Eur. Jour. Biochem. 270:2101.
  4. Trexler, M. et al. (2002) Biol. Chem. 383:223.
Long Name
Growth and Differentiation Factor-associated Serum Protein-1
Entrez Gene IDs
124857 (Human); 278507 (Mouse); 287631 (Rat)
Alternate Names
GASP1; GASP-1; Growth and differentiation factor-associated serum protein 1; hGASP-1; WAP, follistatin, immunoglobulin, kunitz and NTR domain-containing-relatedprotein; WAP, follistatin/kazal, immunoglobulin, kunitz and netrin domain containing 2; WAP, FS, Ig, two KU and NTR module related protein; WAP, kazal, immunoglobulin, kunitz and NTR domain-containing protein 2; WFIKKN2; WFIKKN-related protein; WFIKKNRP; WFIKKNRPmultivalent protease inhibitor protein

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Citation for Human GASP-1/WFIKKN2 Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

1 Citation: Showing 1 - 1

  1. Peroxisome proliferator-activated receptor beta/delta induces myogenesis by modulating myostatin activity.
    Authors: Bonala S, Lokireddy S, Arigela H, Teng S, Wahli W, Sharma M, McFarlane C, Kambadur R
    J. Biol. Chem., 2012-02-23;287(16):12935-51.
    Species: Human
    Sample Types: Cell Lysates, Whole Cells
    Applications: Immunoprecipitation, Neutralization

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