PE-Labeled Human Siglec-3 / CD33 Protein, His Tag (Site-specific conjugation)

PE-Labeled Human Siglec-3, His Tag (CD3-HP2E3) is produced via site-specific conjugation of PE to Human Siglec-3, His Tag under optimal conditions with a proprietary technology. Human Siglec-3, His Tag is expressed from human 293 cells (HEK293) . It contains AA Asp 18 - His 259 (Accession # AAH28152.1) .

Product Specifications

Background

Myeloid cell surface antigen CD33 is also known as SIGLEC3, Siglecs (sialic acid binding Iglike lectins) and GP67, is a single-pass type I membrane protein which belongs to the immunoglobulin superfamily and SIGLEC (sialic acid binding Ig-like lectin) family. Human CD33 / Siglec-3 cDNA encodes a 364 amino acid (aa) polypeptide with a hydrophobic signal peptide, an N-terminal Ig-like V-type domain, one Ig-like C2-type domains, a transmembrane region and a cytoplasmic tail. CD33 / Siglec-3 usually considered myeloid-specific, but it can also be found on some lymphoid cells. In the immune response, CD33 / Siglec-3 may act as an inhibitory receptor upon ligand induced tyrosine phosphorylation by recruiting cytoplasmic phosphatase (s) via their SH2 domain (s) that block signal transduction through dephosphorylation of signaling molecules. CD33 / Siglec-3 induces apoptosis in acute myeloid leukemia.

Specifications

This protein carries a polyhistidine tag at the C-terminus. The protein has a calculated MW of 29.4 kDa.

Accession Number

P20138-1 (G69R)

Expression Region

Asp 18 - His 259

Host

HEK293

Target

Siglec-3

Conjugation

PE Labeled

Tag

C-6xHis

Source

Human

Applications

Evaluation of anti-CD33 CAR expression by flow cytometry. Please note that this product is NOT compatible to streptavidin detection system.

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.