Recombinant Cynomolgus CD33 Protein(His tag) (CH0276CL)

Cat.No.

CH0276CL

Synonyms

CD33; CD33 molecule;

Species

Cynomolgus

Accession

CD33

Source

HEK293

Tag

His

Predicted N Terminal

Met 16

Form

Lyophilized from sterile PBS, pH 7.4, 5 % trehalose and 5 % mannitol.

Molecular Mass

Recombinant Cynomolgus CD33 comprises 244 amino acids and has a calculated molecular mass of 27.3 KDa. The apparent molecular mass of it is approximately 45.2 KDa in SDS-PAGE under reducing condition.

Endotoxin

< 1.0 EU per 1 microgram of protein (determined by LAL method).

Purity

> 95 % by SDS-PAGE.

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.