DC-SIGN/CD209 Protein, Human (HEK293, His)

The DC-SIGN/CD209 protein is expressed on immature dendritic cells (DC) and is an important pathogen recognition receptor that initiates primary immune responses. It mediates endocytosis and subsequent degradation of pathogens within the lysosomal compartment. DC-SIGN/CD209 Protein, Human (HEK293, His) is the recombinant human-derived DC-SIGN/CD209 protein, expressed by HEK293, with N-His labeled tag.

DC-SIGN/CD209 Protein, expressed on the surface of immature dendritic cells (DCs), serves as a pivotal pathogen-recognition receptor, playing a crucial role in initiating the primary immune response. This receptor is implicated in the endocytosis of pathogens, leading to their subsequent degradation within lysosomal compartments. Following this process, DC-SIGN returns to the cell membrane surface, presenting pathogen-derived antigens to resting T-cells through MHC class II proteins, thereby triggering the adaptive immune response. On DCs, it acts as a high-affinity receptor for ICAM2 and ICAM3, binding to mannose-like carbohydrates. Notably, DC-SIGN may function as a DC rolling receptor, facilitating the transendothelial migration of DC precursors from the bloodstream to tissues by interacting with endothelial ICAM2. Furthermore, it appears to modulate DC-induced T-cell proliferation through its binding to ICAM3 on T-cells within the immunological synapse formed between DCs and T-cells.

Human

HEK293

N-His

Q9NNX6-1 (Q59-A404)

30835

Approximately 40-50 kDa,based on SDS-PAGE under reducing conditions,due to the glycosylation.

Greater than 90% as determined by reducing SDS-PAGE.

<1 EU/μg, determined by LAL method.