Human IGF-I/IGF-1 Antibody
R&D Systems, part of Bio-Techne | Catalog # AF-291-NA
Key Product Details
Species Reactivity
Validated:
Human
Cited:
Human, Mouse, Rat, Bovine
Applications
Validated:
Immunocytochemistry, Immunohistochemistry, Neutralization, Simple Western, Western Blot
Cited:
ELISA Development, ELISA Development (Detection), Immunocytochemistry, Immunohistochemistry, Immunohistochemistry-Frozen, Immunohistochemistry-Paraffin, Immunoprecipitation, Neutralization, Western Blot
Label
Unconjugated
Antibody Source
Polyclonal Goat IgG
Product Specifications
Immunogen
E. coli-derived recombinant human IGF-I/IGF-1
Specificity
Detects human IGF-I/IGF-1 in direct ELISAs and Western blots. In direct ELISAs, approximately 50% cross-reactivity with recombinant mouse IGF-I/IGF-1 and recombinant rat IGF-I/IGF-1 is observed.
Clonality
Polyclonal
Host
Goat
Isotype
IgG
Endotoxin Level
<0.10 EU per 1 μg of the antibody by the LAL method.
Scientific Data Images for Human IGF-I/IGF-1 Antibody
Cell Proliferation Induced by IGF-I/IGF-1 and Neutralization by Human IGF-I/IGF-1 Antibody.
Recombinant Human IGF-I/IGF-1 (291-G1) stimulates proliferation in the MCF-7 human breast cancer cell line in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Human IGF-I/IGF-1 (6 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human IGF-I/IGF-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-291-NA). The ND50 is typically 3-12 µg/mL.
IGF-I/IGF-1 in MDA‑MB‑231 Human Cell Line.
IGF-I/IGF-1 was detected in immersion fixed MDA-MB-231 human breast cancer cell line using Goat Anti-Human IGF-I/IGF-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-291-NA) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Goat IgG Secondary Antibody (yellow; NL001) and counterstained with DAPI (blue). View our protocol for Fluorescent ICC Staining of Cells on Coverslips.
IGF-I/IGF-1 in Human Placenta.
IGF-I/IGF-1 was detected in immersion fixed paraffin-embedded sections of human placenta using Goat Anti-Human IGF-I/IGF-1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF-291-NA) at 5 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to syncytiotrophoblasts. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.Applications for Human IGF-I/IGF-1 Antibody
Application
Recommended Usage
Immunocytochemistry
5-15 µg/mL
Sample: Immersion fixed MDA-MB-231 human breast cancer cell line
Sample: Immersion fixed MDA-MB-231 human breast cancer cell line
Immunohistochemistry
5-15 µg/mL
Sample: Immersion fixed paraffin-embedded sections of human placenta (chorionic villi) subjected to Antigen Retrieval Reagent-Basic (Catalog # CTS013)
Sample: Immersion fixed paraffin-embedded sections of human placenta (chorionic villi) subjected to Antigen Retrieval Reagent-Basic (Catalog # CTS013)
Simple Western
50 µg/mL
Sample: Recombinant Human IGF-1
Sample: Recombinant Human IGF-1
Western Blot
0.1 µg/mL
Sample: Recombinant Human IGF-I/IGF-1 (Catalog # 291-G1)
Sample: Recombinant Human IGF-I/IGF-1 (Catalog # 291-G1)
Neutralization
Measured by its ability to neutralize IGF-I/IGF-1-induced proliferation in the MCF‑7 human breast cancer cell line. Karey, K.P. et al. (1988) Cancer Research 48:4083. The Neutralization Dose (ND50) is typically 3-12 µg/mL in the presence of 6 ng/mL Recombinant Human IGF-I/IGF-1.
Please Note: Optimal dilutions of this antibody should be experimentally determined.
Reviewed Applications
Read 4 reviews rated 4.5 using AF-291-NA in the following applications:
Formulation, Preparation, and Storage
Purification
Antigen Affinity-purified
Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.
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.
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: IGF-I/IGF-1
Long Name
Insulin-like Growth Factor I/Insulin-like Growth Factor 1
Alternate Names
IGF-1, IGF1, IGFI, Somatomedin A, Somatomedin C
Gene Symbol
IGF1
Additional IGF-I/IGF-1 Products
Product Documents for Human IGF-I/IGF-1 Antibody
Product Specific Notices for Human IGF-I/IGF-1 Antibody
For research use only
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