Manufactured by:ELK Biotechnology
RUO

Recombinant Human/Cynomolgus CD28 (C-Fc)

Recombinant Human/Cynomolgus CD28 (C-Fc) from ELK Biotechnology

SKU:
ABM101005
Product type
Recombinant Proteins
TargetRecombinant Human/Cynomolgus CD28
ApplicationsFunctional assay
Purity>95% by SDS-PAGE

Manufacturer provenance

Manufactured by:
ELK Biotechnology
Sold by:
ABMIUM
Fulfilled from:
Manufacturer facility or confirmed fulfilment location

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Product description

Recombinant Human/Cynomolgus CD28 (C-Fc) is a research-use recombinant protein from ELK Biotechnology preparation representing Recombinant Human/Cynomolgus CD28 supplied as Lyophilized. Review the expression, purity, formulation and storage specifications below before selecting it for an assay or functional workflow.

Description

Recombinant Human/Cynomolgus T-cell-specific Surface Glycoprotein CD28 is produced by our Mammalian expression system and the target gene encoding Asn19-Pro152 is expressed with a Fc tag at the C-terminus.

Background

T-cell-specific surface glycoprotein CD28(CD28) is a single-pass typeI membrane protein which contains one Ig-likeV-type (immunoglobulin-like) domain. It belongs to the immunoglobulin(Ig) superfamily. CD28 is one of the molecules expressed on T cells that provide co-stimulatory signals, which are required for T cell activation.CD28 co-stimulation is necessary for CD4 positive T-cell proliferation and survival, interleukin-2 production, and T-helper type-2 development. Human post-thymic regulatory T cells require CD28 co-stimulation to expand and maintain potent suppressive function in vivo. Apoptosis plays a key role in the age-related decline of CD28 expression and in immunosenescence. CD28 is the receptor for CD80 (B7.1) and CD86 (B7.2). When activated by Toll-like receptor ligands, the CD80 expression is upregulated in antigen presenting cells (APCs). The CD86 expression on antigen presenting cells is constitutive. CD28 is the only B7 receptor constitutively expressed on naive T cells.

Handling information

Reconstitution Always centrifuge tubes before opening.Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100µg/ml. Dissolve the lyophilized protein in distilled water. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Delivery condition The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature listed below.
Key facts & specifications
Research areas
Molecular Biology
Also known as
CD28; CD28 antigen; CD28 molecule; T-cell-specific surface glycoprotein CD28; Tp44; TP44
Assay type
Recombinant protein
Molecular weight
42.3 KDa
Form / buffer
Lyophilized
Endotoxin level
Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Quantity per pack
10ug
Validation & performance evidence
ABMIUM Validated™ ABMIUM Verified™ Expected performance Not suitable

Application validation matrix

Evidence status by application and model.

SpecificationPurityEndotoxinBioactivity
Product QC
Identifiers & database references
Supplier SKU / catalogue number
EPT281
UniProt entry
P10747
Storage, stability & shipping
Storage conditions
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Long-term storage
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
Compliance & documents
CE marked
No
ISO certifications
ISO 9001
Frequently asked questions
Who manufactured this product?

This product is manufactured by ELK Biotechnology and sold through ABMIUM without relabelling.

Can ABMIUM ship this product internationally?

ABMIUM supports global orders. Availability, shipping requirements and applicable import arrangements are confirmed before fulfilment where required.

Can I check suitability before ordering?

Yes. Send your target, sample, application and experimental conditions through ABMIUM MATCH or technical support.

Is this product for clinical use?

Unless the listing expressly states otherwise, ABMIUM products are supplied for research use only and are not for diagnostic or therapeutic use.

ELK Biotechnology
£52.00