Mouse IGFBP-L1 Biotinylated Antibody

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Mouse IGFBP-L1 Biotinylated Antibody Summary

Species Reactivity
Detects mouse IGFBP‑L1 in Western blots. In Western blots, approximately 15% cross-reactivity with recombinant human (rh) IGFBP-L1 is observed and less than 1% cross-reactivity with recombinant mouse IGFBP-7 is observed.
Polyclonal Goat IgG
Antigen Affinity-purified
Mouse myeloma cell line NS0-derived recombinant mouse IGFBP-L1
Accession # Q80W15
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.


Recommended Concentration
Western Blot
0.1 µg/mL
Recombinant Mouse IGFBP-L1 (Catalog # 4130-BL)
5-15 µg/mL
Immersion fixed frozen sections of embyronic mouse brain (E13.5)

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

Reconstitution Calculator

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Preparation and Storage

Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Size / Price
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: IGFBP-L1

Insulin-like Growth Factor Binding Protein-Like 1 (IGFBP‑L1), also known as IGFBP-rP4, is a 38 kDa secreted member of the IGFBP superfamily of proteins. IGFBP superfamily members are cysteine-rich proteins with conserved cysteine residues, which are clustered in the amino- and carboxy-terminal thirds of the molecule. IGFBPs modulate the biological activities of IGF proteins (1). IGFBP-L1 contains an N-terminal IGFBP motif, a Kazal-type serine protease inhibitor region, and a C‑terminal Ig-like domain (2, 3). Mature mouse IGFBP-L1 shares 76% and 96% amino acid (aa) sequence identity with human and rat IGFBP-L1, respectively. It shares 38%-41% aa sequence identity with mouse IGFBP-7 and IGFBP-rp10 and 20%‑24% aa sequence identity with mouse IGFBP-1, -2, -3, -4, -5, and -6. IGFBP-L1 is most highly expressed in testis and brain, while lower levels are more broadly expressed (3). IGFBP-L1 is expressed in regionally and temporally distinct patterns during forebrain development (4). IGFBP-L1 inhibits cell proliferation in vitro and is downregulated in many colon and lung tumors (3). Transcriptional downregulation by promoter methylation is predictive of breast cancer aggressiveness (5).

Long Name
Insulin-like Growth Factor Binding Protein-like 1
Entrez Gene IDs
347252 (Human); 75426 (Mouse)
Alternate Names
bA113O24.1; IGFBPL1 insulin-like growth factor binding protein-like 1; IGFBPL1; IGFBP-L1; IGFBP-RP4

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