HEK293T Human CD33 Stable Cell Line (HB185818)

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Numéro de catalogue	HB185818
Description	HEK293T Human CD33 Stable Cell Line (HB185818) is a stable cell line expressing CD33. Engineered for consistent, high-level target expression in research applications. Highlights ●Stable Expression — Engineered for consistent, high-level target expression.
Numéro d'accès	P20138
Applications	FCM
Espèce hôte	HEK293T
Espèces	Human
Cible	CD33
Propriétés	Growth Properties: Adherent; Selection Marker: Puromycin (1 μg/mL)
Stabilité et stockage	Frozen in liquid nitrogen.
Spécifications	1 vial contains at least 2×10^6 cells in 1 mL Freeze Medium
Contexte	Myeloid cell surface antigen CD33 is a ~39 kDa protein. Sialic-acid-binding immunoglobulin-like lectin (Siglec) that plays a role in mediating cell-cell interactions and in maintaining immune cells in a resting state. Preferentially recognizes and binds alpha-2,3- and more avidly alpha-2,6-linked sialic acid-bearing glycans. Upon engagement of ligands such as C1q or syalylated glycoproteins, two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) located in CD33 cytoplasmic tail are phosphorylated by Src-like kinases such as LCK. These phosphorylations provide docking sites for the recruitment and activation of protein-tyrosine phosphatases PTPN6/SHP-1 and PTPN11/SHP-2. In turn, these phosphatases regulate downstream pathways through dephosphorylation of signaling molecules. CD33 is the therapeutic target of gemtuzumab ozogamicin (Mylotarg). 1. Vitale, C. et al. (1999) Proceedings of the National Academy of Sciences of the United States of America 96, 15091-6. PMID: 10611343 2. Vitale, C. et al. (2001) Proceedings of the National Academy of Sciences of the United States of America 98, 5764-9. PMID: 11320212 3. Lajaunias, F. et al. (2005) European journal of immunology 35, 243-51. PMID: 15597323 4. Freeman, SD. et al. (1995) Blood 85, 2005-12. PMID: 7718872 5. Paul, SP. et al. (2000) Blood 96, 483-90. PMID: 10887109 6. Son, M. et al. (2017) Scientific reports 7, 270. PMID: 28325905 7. Taylor, VC. et al. (1999) The Journal of biological chemistry 274, 11505-12. PMID: 10206955 8. Ulyanova, T. et al. (1999) European journal of immunology 29, 3440-9. PMID: 10556798

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Flow cytometry

Untransfected cells (blue Histogram) and Transfected cells (Yellow Histogram) were stained with an anti-human CD33 monoclonal antibody at a concentration of 5 µg/ml for 30 mins at RT. After washing, cells analysed on a NovoCyte Flow Cytometer.

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