1. Recombinant Proteins
  2. Cytokines and Growth Factors
  3. Chemokine & Receptors
  4. CXC Chemokines
  5. BCA-1/CXCL13

CXCL13, known as BCA-1 (B cell-attracting chemokine 1) or BLC (B-lymphocyte chemoattractant), is an efficacious attractant selective for B lymphocytes through binding to the BLR1/CXCR5 receptor. CXCL13 is originally identified in stromal cells in B cell follicles as regulating homing of B cells and subsets of T cells. CXCL13 is a homeostatic chemokine, and is constitutively secreted by stromal cells in B-cell areas of secondary lymphoid tissues (follicles), such as spleen, lymph nodes, tonsils, and Peyer's patches. CXCL13 plays a key role in orchestrating cell migration within spatially distinct regions of the secondary lymphoid organs. It strongly attracts B lymphocytes while promoting migration of only small numbers of T cells and macrophages. CXCL13 and its receptor, CXCR5, play fundamental roles in inflammatory, infectious, cancer and immune responses[1][2][3].
CXCL13 exerts its functions through its receptor CXCR5. CXCR5 is highly expressed on mature recirculating B-lymphocytes, a subpopulation of follicular helper T cells (TFH) and skin-derived migratory dendritic cells (DCs), and controls their migration into secondary lymphoid organs towards the gradient of CXCL13. As the loss of the BLR1/CXCR5 receptor is sufficient to disrupt organization of follicles in spleen and Peyer's patches, BCA-1 may act as a B cell homing chemokine. Human BCA-1 competes with radiolabeled IFN-γ inducible protein 10 (IP-10) for binding to the human CXCR3 receptor expressed in Ba/F3 and 293EBNA cell lines. Furthermore, human BCA-1 is an efficacious attractant for human CXCR3 transfected cells. BCA-1 does oes not induce calcium release in B-lymphocytes. In addition, human BCA-1 is an agonist in stimulating GTP gamma S binding. Human BCA-1 is a specific and functional G-protein-linked chemotactic ligand for the human CXCR3 receptor. CXCL13 has been widely implicated in the pathogenesis of a number of autoimmune diseases and inflammatory conditions, as well as in lymphoproliferative disorders. In addition, the CXCL13:CXCR5 axis orchestrates cell-cell interactions that regulate lymphocyte infiltration within the tumor microenvironment[1][2][3].

Cat. No. Product Name / Synonyms Species Source
  • HY-P7131
    BCA-1/CXCL13 Protein, Human

    rHuBCA-1/CXCL13; C-X-C motif chemokine 13; BCA1; BLC; SCYB13

    Human E. coli
    CXCL13, known as BCA-1 (B cell-attracting chemokine 1) or BLC (B-lymphocyte chemoattractant), is an efficacious attractant selective for B lymphocytes through binding to the BLR1/CXCR5 receptor. CXCL13 is a homeostatic chemokine, and is constitutively secreted by stromal cells in B-cell areas of secondary lymphoid tissues (follicles), such as spleen, lymph nodes, tonsils, and Peyer's patches. BCA-1/CXCL13 Protein, Human is produced in E. coli, and consists of 87 amino acids (V23-P109).
  • HY-P77911
    BCA-1/CXCL13 Protein, Mouse (HEK293, His)

    ANGIE; ANGIE2; BCA-1; BCA1; BLC; BLR1L; SCYB13

    Mouse HEK293
    CXCL13, known as BCA-1 (B cell-attracting chemokine 1) or BLC (B-lymphocyte chemoattractant), is an efficacious attractant selective for B lymphocytes through binding to the BLR1/CXCR5 receptor. CXCL13 is a homeostatic chemokine, and is constitutively secreted by stromal cells in B-cell areas of secondary lymphoid tissues (follicles), such as spleen, lymph nodes, tonsils, and Peyer's patches. BCA-1/CXCL13 Protein, Mouse (HEK293, His) is produced in HEK293 cells with a N-Terminal His-tag. It consists of 88 amino acids (I22-A109).
  • HY-P77912
    BCA-1/CXCL13 Protein, Mouse (HEK293, Fc)

    ANGIE; ANGIE2; BCA-1; BCA1; BLC; BLR1L; SCYB13

    Mouse HEK293
    CXCL13, known as BCA-1 (B cell-attracting chemokine 1) or BLC (B-lymphocyte chemoattractant), is an efficacious attractant selective for B lymphocytes through binding to the BLR1/CXCR5 receptor. CXCL13 is a homeostatic chemokine, and is constitutively secreted by stromal cells in B-cell areas of secondary lymphoid tissues (follicles), such as spleen, lymph nodes, tonsils, and Peyer's patches. BCA-1/CXCL13 Protein, Mouse (HEK293, Fc) is produced in HEK293 cells with a N-Terminal Fc-tag. It consists of 88 amino acids (I22-A109).
  • HY-P76164
    BCA-1/CXCL13 Protein, Cynomolgus (His)

    C-X-C motif chemokine 13; BCA1; BLC; SCYB13

    Cynomolgus E. coli
    CXCL13, known as BCA-1 (B cell-attracting chemokine 1) or BLC (B-lymphocyte chemoattractant), is an efficacious attractant selective for B lymphocytes through binding to the BLR1/CXCR5 receptor. CXCL13 is a homeostatic chemokine, and is constitutively secreted by stromal cells in B-cell areas of secondary lymphoid tissues (follicles), such as spleen, lymph nodes, tonsils, and Peyer's patches. BCA-1/CXCL13 Protein, Cynomolgus (His) is produced in E. coli with a N-Terminal His-tag. It consists of 87 amino acids (V23-P109).
  • HY-P700044AF
    Animal-Free BCA-1/CXCL13 Protein, Human (His)

    BCA-1/CXCL13; C-X-C motif chemokine 13; BCA1; BLC; SCYB13

    Human E. coli
  • HY-P700234AF
    Animal-Free CXCL13 Protein, Pig (His)

    C-X-C motif chemokine 13; BCA1; BLC; SCYB13

    Pig E. coli
Cat. No. Product Name Effect Purity