Synonyms	SiglecE;Siglec-E;Sialic Acid Binding Ig-like Lectin E
Species	Mouse
Expression_host	HEK293 Cells
Sequence	Gln20-Phe355
Accession	Q6PJ50
Mol_Mass	64.4 kDa
AP_Mol_Mass	85-95 kDa
Tag	C-Fc

Properties

Purity	> 95 % as determined by reducing SDS-PAGE.
Storage	Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
Shipping	This product is provided as lyophilized powder which is shipped with ice packs.
Formulation	Lyophilized from a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, pH 8.5. Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual.
Reconstitution	Please refer to the printed manual for detailed information.

Background

Siglecs are sialic acid specific I?type lectins that are characterized by an extracellular domain (ECD) with an N?terminal Ig?like V?set domain followed by varying numbers of Ig?like C2?set domains. Mouse Siglec?E, also known as Myeloid Inhibitory Siglec (MIS), is an 80 ? 85 kDa member of the CD33?related subfamily of Siglecs. Rodent and primate Siglec gene families have significantly diverged, and Siglec?9 is the most likely human ortholog of mouse Siglec?E. Siglec?E is expressed as a heavily N?glycosylated disulfide?linked homodimer and shows binding preference for disialic acids in the alpha 2?8 linkage. Siglec?E is up?regulated and additionally phosphorylated following cellular stimulation by a variety of TLR agonists. Siglec?E signaling negatively regulates the LPS?induced production of TNF? alpha and IL?6 by macrophages. Its up?regulation in macrophages parallels the development of endotoxin tolerance. Siglec?E recognition of sialylated determinants on virulent T. cruzi contributes to the suppression of dendritic cell IL?12 p40 production.

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