ICOS Protein, Mouse (C137S, C138S, HEK293, His)
ICOS proteins optimize T cell responses to foreign antigens, promoting proliferation, lymphokine secretion, upregulation of cell-cell interaction molecules, and efficient B cell antibody secretion. ICOS is essential for efficient communication of T cells and B cells and for normal antibody responses to T cell-dependent antigens. ICOS Protein, Mouse (C137S, C138S, HEK293, His) is the recombinant mouse-derived ICOS protein, expressed by HEK293 , with C-His labeled tag and C137S, C138S mutation.
- Species: Mouse
- Source: HEK293
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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.
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Biological Activity
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Technical Parameters
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Product Properties
- Documentation
- Help & FAQs
Biological Activity
Description
ICOS proteins optimize T cell responses to foreign antigens, promoting proliferation, lymphokine secretion, upregulation of cell-cell interaction molecules, and efficient B cell antibody secretion. ICOS is essential for efficient communication of T cells and B cells and for normal antibody responses to T cell-dependent antigens. ICOS Protein, Mouse (C137S, C138S, HEK293, His) is the recombinant mouse-derived ICOS protein, expressed by HEK293 , with C-His labeled tag and C137S, C138S mutation.
Background
The ICOS protein enhances all fundamental T-cell responses to foreign antigens, including proliferation, secretion of lymphokines, up-regulation of cell-cell interaction molecules, and providing effective help for antibody secretion by B-cells. It is essential for facilitating efficient communication between T and B-cells and for normal antibody responses to T-cell dependent antigens. Although it does not increase the production of interleukin-2, it superinduces the synthesis of interleukin-10. Additionally, it prevents apoptosis of pre-activated T-cells and plays a critical role in CD40-mediated class switching of immunoglobulin isotypes. ICOS exists as a homodimer, connected by disulfide bonds.
Technical Parameters
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Species Mouse
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Source HEK293
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Tag C-8*His
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Accession
Q9WVS0 (E21-L144, C137S, C138S)
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Molecular Construction
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N-term
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ICOS (E21-L144, C137S, C138S)
Accession # Q9WVS0 -
8*His
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C-term
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Protein Length
Extracellular Domain
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Synonyms
ICOS; CD278; Inducible T Cell Costimulator; Inducible T-Cell Co-Stimulator; Activation-Inducible Lymphocyte Immunomediatory Molecule; Inducible Costimulator; Inducible T-Cell Costimulator; CD278 Antigen; AILIM; CVID1
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AA Sequence
EINGSADHRMFSFHNGGVQISCKYPETVQQLKMRLFREREVLCELTKTKGSGNAVSIKNPMLCLYHLSNNSVSFFLNNPDSSQGSYYFCSLSIFDPPPFQERNLSGGYLHIYESQLSSQLKLWL
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Predicted Molecular Mass
15.3 kDa
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Molecular Weight
Approximately 27-38 kDa, based on SDS-PAGE under reducing conditions, due to the glycosylation.
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Glycosylation
Yes
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Purity
≥ 95%, as determined by Bis-Tris PAGE.
Product Properties
Solution
<1 EU/μg, determined by LAL method.
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 with dry ice.
Documentation
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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