Fc gamma RIIB/CD32b Protein, Cynomolgus (Biotinylated, HEK293, His-Avi)

Fc γ RIIB/CD32b proteins exhibit low affinity as complexes or receptors that aggregate the immunoglobulin γFc region. ITIM phosphorylated by Fc γ RIIB/CD32b recruits inositol phosphatases SHIP1 and SHIP2, inhibits Ras activation, down-regulates MAPK activity, reduces PLC-γ function, and results in PKC activation. Inhibition of MAP kinase pathway and anti-apoptotic kinase Akt inhibit cell proliferation and survival. Fc gamma RIIB/CD32b Protein, Cynomolgus (Biotinylated, HEK293, His-Avi) is the recombinant cynomolgus-derived Fc gamma RIIB/CD32b protein, expressed by HEK293 , with C-Avi, C-His labeled tag.

For research use only. We do not sell to patients.
  • Species: Cynomolgus
  • Source: HEK293
  • Storage:
    Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.
  • Biological Activity
  • Technical Parameters
  • Product Properties
  • Documentation
  • Help & FAQs

Biological Activity

Description

Fc γ RIIB/CD32b proteins exhibit low affinity as complexes or receptors that aggregate the immunoglobulin γFc region. ITIM phosphorylated by Fc γ RIIB/CD32b recruits inositol phosphatases SHIP1 and SHIP2, inhibits Ras activation, down-regulates MAPK activity, reduces PLC-γ function, and results in PKC activation. Inhibition of MAP kinase pathway and anti-apoptotic kinase Akt inhibit cell proliferation and survival. Fc gamma RIIB/CD32b Protein, Cynomolgus (Biotinylated, HEK293, His-Avi) is the recombinant cynomolgus-derived Fc gamma RIIB/CD32b protein, expressed by HEK293 , with C-Avi, C-His labeled tag.

Background

Fc γ RIIB/CD32b proteins exhibit low affinity as complexes or receptors that aggregate the immunoglobulin γFc region. It plays a key role in a variety of effects and regulatory functions, including phagocytosis of immune complexes and regulation of B-cell antibody production. Upon binding to this receptor, down-regulation of the previous state of cell activation is triggered by an antigen receptor on B cells (BCR), T cells (TCR), or another Fc receptor. The IIB1 subtype does not mediate endocytosis or phagocytosis, while the IIB2 subtype does not induce phagocytosis. Fc γ RIIB/CD32b interacts with INPP5D/SHIP1, FGR, and LYN. Fc γ RIIB/CD32b -phosphorylated ITIM recruits inositol phosphatases SHIP1 and SHIP2, inhibits Ras activation, down-regulates MAPK activity, reduces PLC-γ function, and results in PKC activation. Inhibition of MAP kinase pathway and anti-apoptotic kinase Akt inhibit cell proliferation and survival[1][2][3].

Technical Parameters

  • Species Cynomolgus
  • Source HEK293
  • Tag C-Avi;C-His
  • Accession
  • Gene ID
  • Molecular Construction
    • N-term
    • CD32b (A45-G220)
      Accession # Q8SPW3
    • Avi-His
    • C-term
  • Protein Length

    Partial

  • Conjugation

    Biotin

  • Synonyms

    FCGR2B; Fc-Gamma-RIIb; Prev. FCG2; FcGRIIB; Prev. FCGR2; FcRII-B; CD32; IGFR2; CD32B; CDw32; Fc Fragment Of IgG, Low Affinity IIb, Receptor For (CD32); Fc Fragment Of IgG, Low Affinity II, Receptor For (CD32); Low Affinity Immunoglobulin Gamma Fc Region R

  • AA Sequence

    AAPPKAVLKLEPPWINVLREDSVTLTCGGAHSPDSDSTQWFHNGNLIPTHTQPSYRFKANNNDSGEYRCQTGRTSLSDPVHLTVLSEWLALQTPHLEFREGETILLRCHSWKDKPLIKVTFFQNGISKKFSHMNPNFSIPQANHSHSGDYHCTGNIGYTPYSSKPVTITVQVPSMG

  • Predicted Molecular Mass

    23.5 kDa

  • Molecular Weight

    Approximately 34 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.

  • Purity

    ≥ 95%, as determined by reducing SDS-PAGE.

Product Properties

Appearance

Solution

Endotoxin Level

<1 EU/μg, determined by LAL method.

Storage & Stability

Stored at -80°C for 1 year from date of receipt. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Calculators

Reconstitution Calculator

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

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Dilution Calculator

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

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The Specific Activity Calculator Equation
  • Specific Activity (Unit/mg)
  • Biological Activity (ED50)

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

Specific Activity (Unit/mg) Specific Activity (Unit/mg)
Unit/mg
= 106 ÷
Biological Activity (ED50) Biological Activity (ED50)
106 ÷
ng/mL
MOQ
Minimum order quantity
100 mg

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