DC-SIGN/CD209 recombinant protein

Recombinant Human DC-SIGN/CD209 (N-Fc)

Cat. Num. AAA2569172

• Gene Names: CD209; CDSIGN; CLEC4L; DC-SIGN; DC-SIGN1
• Purity: >95% as determined by reducing SDS-PAGE
• Synonyms: DC-SIGN/CD209; Recombinant Human DC-SIGN/CD209 (N-Fc); CD209 molecule; CD209; CDSIGNHIV gpl20-binding protein; CLEC4L; DCSIGN; DC-SIGN; DC-SIGN1; CD209 Antigen; DC-SIGN/CD209 recombinant protein

• Host: Human Cells
• Purity/Purification: >95% as determined by reducing SDS-PAGE
• Form/Format: Lyophilized from a 0.2um filtered solution of PBS, pH7.4.
• Sequence: Gln59-Ala404

• Species: Human
• Tag: N-Fc
• Endotoxin: <1.0EU per ug as determined by the LAL method.
• Protein Construction: Recombinant Human CD209 Antigen is produced by our Mammalian expression system and the target gene encoding Gln59-Ala404 is expressed with a Fc tag at the N-terminus.
• Preparation and Storage: Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80 degree C. Reconstituted protein solution can be stored at 4-8 degree C for 2-7 days. Aliquots of reconstituted samples are stable at < -20 degree C for 3 months.; This product is provided as lyophilized powder which is shipped with ice packs.

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Related Product Information for DC-SIGN/CD209 recombinant protein

CD209 is also known as CLEC4L, DC-SIGN and CD209 antigen, 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. The DC-SIGN/CD209 lectin domain binds mannose oligosaccharides on pathogens including HIV as well as self glycoproteins including ICAMs (2, 4). DC-SIGN/CD209 binds to butyrophilin 2A1 and this interaction can be blocked by HIV pp120. DC-SIGN/CD209 is expressed on dendritic cells (DC) and inflammatory macrophages and contributes to antigen presentation. It is not only a pattern recognition receptor but implicated in immunoregulation of DCs. It has important role in mediating DC adhesion, migration, inflammation, activating primary T cell, triggering immune response and participating in immune escape of pathogens and tumors.

Product Categories/Family for DC-SIGN/CD209 recombinant protein

Signal Transduction; Microbiology; immunology

NCBI and Uniprot Product Information

• NCBI GI #: 13383468
• NCBI GeneID: 30835
• UniProt Accession #: Q9NNX6; Q2TB19; Q96QP7; Q96QP8; Q96QP9; Q96QQ0; Q96QQ1; Q96QQ2; Q96QQ3; A8KAM4; A8MVQ9; G5E9C4
• Molecular Weight: 45,775 Da
• NCBI Official Full Name: DC-SIGN
• 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
• 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