Human CD5 Protein, His Tag, low endotoxin

T-cell surface glycoprotein CD5 is also known as Lymphocyte antigen T1/Leu-1 and LEU1, which is phosphorylated on tyrosine residues by LYN, so CD5 can create binding sites for PTPN6/SHP-1.CD5 may act as a receptor in regulating T-cell proliferation. CD5 is expressed at various developmental and activation stages on human B cells.CD5 is a well established negative regulator of TCR and BCR signalling.CD5-positive cells may also prevent the emergence of autoimmunity by provision of cytokines such as IL-10. Development, selection and function of different B- and T-cell subsets or their preferential survival may be directly or indirectly dependent on different glycan structures associated with CD5 or CD5-like molecules.

Product Specifications

Background

Specifications

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 40.5 kDa. The protein migrates as 45-53 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Accession Number

NP_055022

Expression Region

Arg 25 - Pro 372

Host

HEK293

Target

CD5

Conjugation

Unconjugated

Tag

C-10xHis

Source

Human

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

0.01 EU per μg

Purity

95%

Bioactivity

Immobilized Human CD5, His Tag (Cat. No. CD5-H52H5) at 1 μg/mL (100 μL/well) can bind Monoclonal Anti-Human CD5 Antibody, Mouse IgG1 (2C8A7) with a linear range of 0.06-4 ng/mL (QC tested).