2. Recombinant Proteins
  3. Complement System
  4. Complement Receptor

Complement Receptor

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Complement receptor, a part of the innate immune system, are membrane-bound receptors belonging to the complement system. Complement receptors make an important link between cellular functions, notably—but not exclusively—between functions of the leukocytes and soluble complement components (C), factors (F), and several related proteins. They also create a strong connection between those parts of the immune system often termed the innate immune system and other parts forming the adaptive immune system. Complement receptors type one (CR1; C3b/C4b receptor; immune adherence receptor; CD35) and type two (CR2; C3d receptor; EBV receptor; CD21) interact with derivatives of C3 (CR1 and CR2) and/or C4 (CR1) in immune complexes (IC).

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Cat. No. Product Name / Synonyms Species Source
  • HY-P72890
    CD21 Protein, Human (HEK293, His)

    Complement receptor type 2; Cr2; EBV receptor; CD21; C3DR

    		Human HEK293
    CD21 Protein, a receptor for complement C3, Epstein-Barr virus, and HNRNPU, activates B lymphocytes and aids Epstein-Barr virus entry in microbial infection. Its engagement with these ligands highlights its vital role in immune responses and interactions, regulating B-cell activation and host defense against infections. CD21 Protein, Human (HEK293, His) is the recombinant human-derived CD21 protein, expressed by HEK293 , with C-His, C-10*His labeled tag. The total length of CD21 Protein, Human (HEK293, His) is 951 a.a., with molecular weight of 110-120 kDa.
  • HY-P7691
    CD93/C1qR1 Protein, Human (HEK293, His)

    rHuCD93, His; Complement Component C1q Receptor; Matrix-Remodeling-Associated Protein 4CD93; CD93

    		Human HEK293
    CD93/C1qR1 Protein, Human (HEK293, His) is a recombinant human CD93 produced in HEK293 cells, with His tag. CD93 is a type 1 transmembrane glycoprotein.
  • HY-P75373
    CD93/C1qR1 Protein, Mouse (HEK293, His)

    Complement Component C1q Receptor; CD93; C1qRp; Ly-68; C1qr1

    		Mouse HEK293
    The CD93/C1qR1 protein, as a receptor or part of a larger complex, is a multifunctional mediator in immune recognition and cellular interactions.It has been shown to play a role in coordinating immune responses as a binding site for C1q, mannose-binding lectin (MBL2), and pulmonary surfactant protein A (SPA).CD93/C1qR1 Protein, Mouse (HEK293, His) is the recombinant mouse-derived CD93/C1qR1 protein, expressed by HEK293 , with C-10*His labeled tag.
  • HY-P75661
    CD93/C1qR1 Protein, Rat (HEK293, His)

    Complement Component C1q Receptor; CD93; C1qRp; Ly-68; C1qr1

    		Rat HEK293
    The CD93/C1qR1 protein is a receptor or component of a larger complex that is critical in immune recognition and response. It acts as a receptor for C1q, mannose-binding lectin (MBL2), and pulmonary surfactant protein A (SPA), suggesting a role in interactions with multiple immune components. CD93/C1qR1 Protein, Rat (HEK293, His) is the recombinant rat-derived CD93/C1qR1 protein, expressed by HEK293 , with C-His labeled tag.
  • HY-P700398
    C5AR1 Protein-VLP, Human (HEK293, His)

    complement component 5a receptor 1; C5R1, complement component 5 receptor 1 (C5a ligand); C5a anaphylatoxin chemotactic receptor; C5A; C5AR; CD88; C5a-R; C5a ligand; C5a anaphylatoxin receptor; complement component 5 receptor 1; C5R1;

    		Human HEK293
    C5AR1 Protein-VLP, Human (HEK293, His) is recommended for animal immunization, ELISA. It is not recommended for receptor-ligand interaction detection and SPR/BLI assay since there are other irrelevant membrane proteins of the host on the VLP envelope, and the receptor-ligand interaction will have strong background interference. High requirements for chips and experimental protocols are needed for SPR/BLI assays. If VLP control is required, it is recommended HY-P701236. Tags can only be detected under denaturing conditions.
  • HY-P78098
    CD93/C1qR1 Protein, Human (Biotinylated, HEK293, His-Avi)

    C1q/MBL/SPA receptor; C1qR; C1qR(p); C1qRp; CDw93; CD93; C1QR1; MXRA4; ECSM3; dJ737E23.1

    		Human HEK293
    The CD93/C1qR1 protein is thought to be a receptor or part of a larger complex and plays a crucial role in immune recognition by binding to C1q, mannose-binding lectin (MBL2), and pulmonary surfactant protein A (SPA) .Its interaction with these immune factors suggests a role in coordinating the innate immune response.CD93/C1qR1 Protein, Human (Biotinylated, HEK293, His-Avi) is the recombinant human-derived CD93/C1qR1 protein, expressed by HEK293 , with C-Avi, C-His labeled tag.
  • HY-P700464
    CD93/C1qR1 Protein, Macaca fascicularis (HEK293, His)

    rHuCD93, His; Complement Component C1q Receptor; Matrix-Remodeling-Associated Protein 4CD93; CD93

    		Cynomolgus HEK293
    CD93/C1qR1 Protein lacks conserved residue(s) crucial for feature annotation propagation. CD93/C1qR1 Protein, Macaca fascicularis (HEK293, His) is the recombinant cynomolgus-derived CD93/C1qR1 protein, expressed by HEK293 , with C-10*His labeled tag. The total length of CD93/C1qR1 Protein, Macaca fascicularis (HEK293, His) is 558 a.a., with molecular weight of 60.2 kDa.
  • HY-P77602
    CD21 Protein, Mouse (HEK293, His)

    EBV receptor; CD21; C3DR; CR2; C3DRSLEB9; CVID7; SLEB9

    		Mouse HEK293
    CD21 protein, as a receptor for complement C3d and HNRNPU, plays a crucial role in B lymphocyte activation. It forms complexes with CD19, CR2/CD21, CD81 and IFITM1/CD225 and contributes to immune responses. CD21 Protein, Mouse (HEK293, His) is the recombinant mouse-derived CD21 protein, expressed by HEK293 , with C-His labeled tag. The total length of CD21 Protein, Mouse (HEK293, His) is 952 a.a., with molecular weight of 130-150 kDa.
Cat. No. Product Name Effect Purity