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Rat ICOS / CD278 (C137S, C138S) Protein, His Tag

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.

Product Specifications

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.

Specifications

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 15.9 kDa. The protein migrates as 24-26 kDa and 60-65 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Accession Number

Q9R1T7-1 (C137S, C138S)

Expression Region

Glu 21 - Pro 145 (C137S, C138S)

Host

HEK293

Target

ICOS

Conjugation

Unconjugated

Tag

C-10xHis

Source

Rat

Stability

-20°C to -70°C for 12 months in lyophilized state; -70°C for 3 months under sterile conditions after reconstitution. For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Endotoxin

1.0 EU per μg

Purity

90%

Bioactivity

Immobilized Rat ICOS / CD278 (C137S, C138S), His Tag (Cat. No. ICS-R52H9) at 5 μg/mL (100 μL/well) can bind Mouse B7-H2, Fc Tag (Cat. No. B72-M5258) with a linear range of 2-39 ng/mL (QC tested).

Format

Powder

Buffer

PBS, pH7.4

Additives

Trehalose

Molecular Weight

15.9 kDa

Additionnal Information

Please see 'Shipping-and-Payments' sheet. Website: https://www.acrobiosystems.com/support/shipping-and-payments

Shipping Conditions

RT

Storage Conditions

-20°C

Package Size

100ug*1

Host or Source

HEK293

Species

Rat

Protein ID

Q9R1T7-1 (C137S, C138S)

Preservative

Trehalose

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