DC-SIGN Recombinant Protein | CD209 recombinant protein

DC-SIGN Protein, Human, Recombinant (hFc Tag)

Cat. Num. AAA8120092

• Gene Names: CD209; CDSIGN; CLEC4L; DC-SIGN; DC-SIGN1
• Purity: >97% as determined by SDS-PAGE
• Synonyms: DC-SIGN; DC-SIGN Protein; Human; Recombinant (hFc Tag); Human DC-SIGN/CD209 Protein (Fc Tag); CD209 Protein; CDSIGN Protein; CLEC4L Protein; DC-SIGN1 Protein; MGC129965 Protein; CD209 molecule; CD209 recombinant protein

• Host: HEK293 Cells
• Purity/Purification: >97% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Lys62-Ala404

• Species: Human
• Endotoxin: <1.0EU per ug of the protein as determined by the LAL method
• Predicted N Terminal: Glu 20
• Tag: N-human IgG1-Fc
• Protein Construction: A DNA sequence encoding the N-terminally truncated extracellular domain (Lys 62-Ala 404) of human DC-SIGN (NP_066978.1) was expressed with the fused Fc region of human IgG1 at the N-terminus.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature. Bulk packages of recombinant proteins are provided as frozen liquid.; They are shipped out with blue ice.

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Related Product Information for CD209 recombinant protein

Background: Dendritic cell (DC)-specific intercellular adhesion molecule 3 (ICAM-3) grabbing nonintegrin (DC-SIGN), also known as CD209, is a type II transmembrane protein on DCs with a C-type lectin extracellular domain, is capable of binding ICAM-3 on resting T cells in the secondary lymphoid organs, providing the initial contact between these cells during the establishment of cell-mediated immunity. It is not only a pattern recognition receptor but implicated in immunoregulation of DCs. It has an important role in mediating DC adhesion, migration, inflammation, activating primary T cell, triggering immune response and participating in immune escape of pathogens and tumors. DC-SIGN also mediates the capture and internalization of viral, bacterial, and fungal pathogens by dendritic cells, such as HIV-1, Ebola virus, cytomegalovirus, Dengue virus, and hepatitis C virus. DC-SIGN is unique in that it regulates adhesion processes, such as DC trafficking and T-cell synapse formation, as well as antigen capture. Moreover, even though several C-type lectins have been shown to bind HIV-1, DC-SIGN does not only capture HIV-1 but also protects it in early endosomes allowing HIV-1 transport by DC to lymphoid tissues, where it enhances trans infection of T cells.

References

Geijtenbeek TB, et al. (2002) DC-SIGN, a C-type lectin on dendritic cells that unveils many aspects of dendritic cell biology. J Leukoc Biol. 71(6): 921-31.
Masso M. (2003) DC-SIGN points the way to a novel mechanism for HIV-1 transmission. MedGenMed. 5(2): 2.
Zhou T, et al. (2006) DC-SIGN and immunoregulation. Cell Mol Immunol. 3(4): 279-83.

NCBI and Uniprot Product Information

• NCBI GI #: 10863957
• NCBI GeneID: 30835
• NCBI Accession #: NP_066978.1
• NCBI GenBank Nucleotide #: NM_021155.3
• UniProt Accession #: Q9NNX6; Q2TB19; Q96QP7; Q96QP8; Q96QP9; Q96QQ0; Q96QQ1; Q96QQ2; Q96QQ3; A8KAM4; A8MVQ9; G5E9C4
• Molecular Weight: 33,874 Da
• NCBI Official Full Name: CD209 antigen isoform 1
• NCBI Official Synonym Full Names: CD209 molecule
• NCBI Official Symbol: CD209
• NCBI Official Synonym Symbols: CDSIGN; CLEC4L; DC-SIGN; DC-SIGN1
• NCBI Protein Information: CD209 antigen; HIV gpl20-binding protein; C-type lectin domain family 4 member L; C-type lectin domain family 4, member L; dendritic cell-specific ICAM-3-grabbing non-integrin 1; dendritic cell-specific intracellular adhesion molecules (ICAM)-3 grabbing n
• UniProt Protein Name: CD209 antigen
• Protein Family: CD209 antigen
• UniProt Gene Name: CD209
• UniProt Synonym Gene Names: CLEC4L; DC-SIGN; DC-SIGN1
• UniProt Entry Name: CD209_HUMAN

NCBI Description

This gene encodes a transmembrane receptor and is often referred to as DC-SIGN because of its expression on the surface of dendritic cells and macrophages. The encoded protein is involved in the innate immune system and recognizes numerous evolutionarily divergent pathogens ranging from parasites to viruses with a large impact on public health. The protein is organized into three distinct domains: an N-terminal transmembrane domain, a tandem-repeat neck domain and C-type lectin carbohydrate recognition domain. The extracellular region consisting of the C-type lectin and neck domains has a dual function as a pathogen recognition receptor and a cell adhesion receptor by binding carbohydrate ligands on the surface of microbes and endogenous cells. The neck region is important for homo-oligomerization which allows the receptor to bind multivalent ligands with high avidity. Variations in the number of 23 amino acid repeats in the neck domain of this protein are rare but have a significant impact on ligand binding ability. This gene is closely related in terms of both sequence and function to a neighboring gene (GeneID 10332; often referred to as L-SIGN). DC-SIGN and L-SIGN differ in their ligand-binding properties and distribution. Alternative splicing results in multiple variants.[provided by RefSeq, Feb 2009]

Uniprot Description

CD209: Pathogen-recognition receptor expressed on the surface of immature dendritic cells (DCs) and involved in initiation of primary immune response. Thought to mediate the endocytosis of pathogens which are subsequently degraded in lysosomal compartments. The receptor returns to the cell membrane surface and the pathogen-derived antigens are presented to resting T-cells via MHC class II proteins to initiate the adaptive immune response. Probably recognizes in a calcium-dependent manner high mannose N-linked oligosaccharides in a variety of pathogen antigens, including HIV-1 gp120, HIV-2 gp120, SIV gp120, ebolavirus glycoproteins, cytomegalovirus gB, HCV E2, dengue virus gE, Leishmania pifanoi LPG, Lewis-x antigen in Helicobacter pylori LPS, mannose in Klebsiella pneumonae LPS, di-mannose and tri- mannose in Mycobacterium tuberculosis ManLAM and Lewis-x antigen in Schistosoma mansoni SEA. Homotetramer. Binds to many viral surface glycoproteins such as HIV-1 gp120, HIV-2 gp120, SIV gp120, ebolavirus envelope glycoproteins, cytomegalovirus gB, HCV E2 and dengue virus major envelope protein E. Predominantly expressed in dendritic cells and in DC-residing tissues. Also found in placental macrophages, endothelial cells of placental vascular channels, peripheral blood mononuclear cells, and THP-1 monocytes. 13 isoforms of the human protein are produced by alternative splicing.

Protein type: Membrane protein, integral

Chromosomal Location of Human Ortholog: 19p13

Cellular Component: cell surface; membrane; cytoplasm; integral to membrane; plasma membrane

Molecular Function: mannose binding; protein binding; peptide antigen binding; metal ion binding; virion binding; carbohydrate binding

Biological Process: cell-cell recognition; heterophilic cell adhesion; antigen processing and presentation; leukocyte adhesion; virus-host interaction; regulation of T cell proliferation; innate immune response; peptide antigen transport; endocytosis; viral genome replication; virion attachment to host cell surface receptor

Disease: Mycobacterium Tuberculosis, Susceptibility To; Human Immunodeficiency Virus Type 1, Susceptibility To