Recombinant human Siglec-3/CD33 protein
CD33, also known as myeloid cell surface antigen CD33 isoform 1, is a member of the Ig superfamily that is restricted to cells of the myelomonocytic lineage but whose functions and binding properties are unknown. It can function as a sialic acid-dependent cell adhesion molecule and that binding can be modulated by endogenous sialoglycoconjugates when it is expressed in a plasma membrane. It is usually considered myeloid-specific, but it can also be found on some lymphoid cells. It contains immunoreceptor tyrosine-based inhibitory motifs (ITIMs) that are implicated in inhibition of cellular activity. It has been identified to modulate the risk of Alzheimer's disease (AD) in several recent genome-wide association studies (GWAS) in Caucasians. Recombinant human CD33, fused to hIgG-His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.
Product Specifications
Product Name Alternative
Expression System
Baculovirus
Antigen Species
Human
Tag
HIgG-His-Tag
Applications
SDS-PAGE
Concentration
0.25 mg/mL (determined by absorbance at 280 nm)
Endotoxin
< 1 EU per 1ug of protein (determined by LAL method)
Purity
> 90% by SDS-PAGE
Molecular Weight
54 kDa (484aa)
Additionnal Information
References & Citations
Freeman SD., et al. (1995) Blood. 85:2005-2012.; ; Ulyanova T., et al. (1999) Eur J Immunol. 29:3440-3449.
Storage Conditions
Can be stored at 2°C to 8°C for 1 week. For long term storage, aliquot and store at -20C to -80C. Avoid repeated freezing and thawing cycles.
Formulation
Liquid in. Phosphate-Buffered Saline (pH 7.4) containing 10% glycerol
Scientific Category
Immunology
NCBI Accession Number
NP_001763
Uniprot Accession Number
P20138
Species
Human
N Terminal Sequence
Ala
AA Sequence
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