1. Recombinant Proteins
  2. Cytokines and Growth Factors CD Antigens Biotinylated Proteins
  3. IGF family Epithelial cell CD Proteins Endothelial cell CD Proteins
  4. IGF-I R/CD221 IGF-I R/CD221
  5. IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi)

IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi)

Cat. No.: HY-P78142
COA Handling Instructions

IGF-I receptor (IGF1R) mediates insulin-like growth factor effects, binding strongly to IGF1. Activation triggers PI3K-AKT/PKB and Ras-MAPK pathways, influencing cell survival, protein synthesis, and proliferation. IGF1R also signals through JAK/STAT, inhibiting JNK activation. Hybrid receptors show variable binding to IGF1 and insulin. IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived IGF-I R protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi) is 902 a.a., with molecular weight of 110-120 kDa (alpha subunit) & 52-55 kDa (beta subunit), respectively.

For research use only. We do not sell to patients.

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20 μg $245 In-stock
50 μg $540 In-stock
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  • Biological Activity

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Description

IGF-I receptor (IGF1R) mediates insulin-like growth factor effects, binding strongly to IGF1. Activation triggers PI3K-AKT/PKB and Ras-MAPK pathways, influencing cell survival, protein synthesis, and proliferation. IGF1R also signals through JAK/STAT, inhibiting JNK activation. Hybrid receptors show variable binding to IGF1 and insulin. IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived IGF-I R protein, expressed by HEK293 , with C-Avi, C-His labeled tag. The total length of IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi) is 902 a.a., with molecular weight of 110-120 kDa (alpha subunit) & 52-55 kDa (beta subunit), respectively.

Background

The IGF-I receptor (IGF1R) is a receptor tyrosine kinase that plays a pivotal role in mediating the actions of insulin-like growth factor 1 (IGF1). It exhibits high affinity for IGF1 and lower affinity for IGF2 and insulin (INS). Upon ligand binding, IGF1R activates its kinase, leading to receptor autophosphorylation and tyrosine phosphorylation of various substrates, including insulin-receptor substrates (IRS1/2), Shc, and 14-3-3 proteins. This initiates two main signaling pathways: the PI3K-AKT/PKB pathway, which inhibits apoptosis and stimulates protein synthesis, and the Ras-MAPK pathway, promoting increased cellular proliferation. Phosphorylated IRS1 can activate the PI3K pathway, leading to downstream activation of AKT/PKB and subsequent enhancement of protein synthesis and antiapoptotic effects. Simultaneously, recruitment of Grb2/SOS by phosphorylated IRS1 or Shc activates the Ras-MAPK pathway. Additionally, IGF1R signals through the JAK/STAT pathway, potentially contributing to its transforming activity. The JNK kinases can also be activated by IGF1R, and IGF1 inhibits JNK activation by phosphorylating and inhibiting MAP3K5/ASK1. Hybrid receptors composed of IGF1R and INSR isoforms exhibit varying binding characteristics, indicating high affinity for IGF1 and low affinity for insulin.

Biological Activity

Measured by its binding ability in a functional ELISA. When immobilized Anti-IGF1R Antibody at 0.5μg/ml (100μl/Well), can bind Biotinylated Human IGF1R His tag and the EC50 is 35.7 ng/mL.

Species

Human

Source

HEK293

Tag

C-Avi;C-His

Accession

P08069 (E31-N932)

Gene ID
Molecular Construction
N-term
IGF-I R (E31-N932)
Accession # P08069
His-Avi
C-term
Synonyms
CD221; IGF1R; IGF-1R; IGF-I R; IGF-I receptor; IGFIR; IGFR; JTK13; MGC142170; MGC142172; MGC18216
Molecular Weight

110-120 kDa (alpha subunit) & 52-55 kDa (beta subunit)

Purity

Greater than 95% as determined by Tris-Bis PAGE.

Appearance

Lyophilized powder.

Formulation

Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. Normally 5% trehalose is added as protectant before lyophilization.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH2O.

Storage & Stability

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Shipping

Room temperature in continental US; may vary elsewhere.

Documentation

IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

  • Reconstitution Calculator

  • Dilution Calculator

  • Specific Activity Calculator

The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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IGF-I R Protein, Human (Biotinylated, HEK293, His-Avi)
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HY-P78142
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