user
menu
letter
Sign InRegister
langEnglisharrow

Human ICOS / CD278 Protein, Fc Tag

Cat. No. / Size
Price
Availability
Qty
ICS-H5258-100ug
$395.00
In Stock - Delivery in 1-2 business days
ICS-H5258-1mg (500ug X 2)
$2,615.00
In Stock - Delivery in 2 weeks
ICS-H5258
Sub-Total :
$ 0
Customize Product Request Quote
Contact Us
Contact Us
Sub-Total:
$ 0
Request Quote
Product Details
Performance Data
Reviews & Citations
Resources
  • Product Details
  • Performance Data
  • Reviews & Citations
  • Important Statement
  • Resources
Synonyms

ICOS, CD278, AILIM, Inducible T-cell costimulator

Source

Human ICOS, Fc Tag (ICS-H5258) is expressed from human 293 cells (HEK293). It contains AA Glu 21 - Phe 141 (Accession # Q9Y6W8-1).

Predicted N-terminus: Glu 21

Molecular Characterization
Other Tags and Version Biotin & Other Labeled Version

This protein carries a human IgG1 Fc tag at the C-terminus.

The protein has a calculated MW of 40.2 kDa. The protein migrates as 45-60 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method / rFC method.

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in Tris with Glycine, Arginine and NaCl, pH7.5 with trehalose as protectant.

Contact us for customized product form or formulation.

Reconstitution

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Shipping and Storage

This product is shipped at ambient temperature.

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

This product is stable after storage at:
  • -20°C to -70°C for 12 months in lyophilized state;
  • -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System

Background

Inducible T-cell costimulator (ICOS) is also known as Activation-inducible lymphocyte immunomediatory molecule (AILIM), CD278, which belongs to the CD28 family of immune costimulatory receptors consisting of CD28, CTLA-4 and PD-1. ICOS enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up-regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. CD278 / ICOS prevents the apoptosis of pre-activated T-cells and also plays a critical role in CD40-mediated class switching of immunoglobin isotypes.