Detects CXCL13/BLC/BCA‑1 in direct ELISAs and Western blots.
Polyclonal Goat IgG
E. coli-derived recombinant human CXCL13/BCA-1 Val23-Arg94 Accession # Q53X90
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
<0.10 EU per 1 μg of the antibody by the LAL method.
Recombinant Human CXCL13/BLC/BCA‑1 (Catalog # 801-CX)
Measured by its ability to neutralize CXCL13/BLC/BCA‑1-induced chemotaxis in the BaF3 mouse pro‑B cell line transfected with human CXCR5. The Neutralization Dose (ND50) is typically 1-4 µg/mL in the presence of 50 ng/mL Recombinant Human CXCL13/BLC/BCA‑1.
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Chemotaxis Induced by CXCL13/BLC/BCA‑1 and Neutralization by Human CXCL13/BLC/BCA‑1 Antibody. Recombinant Human CXCL13/BLC/BCA‑1 (Catalog # 801-CX) chemoattracts the BaF3 mouse pro‑B cell line transfected with human CXCR5 in a dose-dependent manner (orange line). The amount of cells that migrated through to the lower chemotaxis chamber was measured by Resazurin. Chemotaxis elicited by Recombinant Human CXCL13/BLC/BCA‑1 (50 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Human CXCL13/BLC/BCA‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF801). The ND50 is typically 1‑4 µg/mL.
CXCL13/BLC/BCA‑1 in Human Lymphoma. CXCL13/BLC/BCA‑1 was detected in immersion fixed paraffin-embedded sections of human lymphoma using Goat Anti-Human CXCL13/BLC/BCA‑1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF801) at 10 µg/mL overnight at 4 °C. Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using the Anti-Goat HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS008) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.
Preparation and Storage
Reconstitute at 0.2 mg/mL in sterile PBS.
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
CXCL13, also known as B-lymphocyte chemoattractant (BLC), is a CXC chemokine that is constitutively expressed in secondary lymphoid organs. BCA-1 cDNA encodes a protein of 109 amino acid residues with a leader sequence of 22 residues. Mature human BCA-1 shares 64% amino acid sequence similarity with the mouse protein and 23‑34% amino acid sequence identity with other known CXC chemokines. Recombinant or chemically synthesized BCA-1 is a potent chemoattractant for B lymphocytes but not T lymphocytes, monocytes or neutrophils. BLR1, a G protein-coupled receptor originally isolated from Burkitt’s lymphoma cells, has now been shown to be the specific receptor for BCA1. Among cells of the hematopoietic lineages, the expression of BLR1, now designated CXCR5, is restricted to B lymphocytes and a subpopulation of T helper memory cells. Mice lacking BLR1 have been shown to lack inguinal lymph nodes. These mice were also found to have impaired development of Peyer’s patches and defective formation of primary follicles and germinal centers in the spleen as a result of the inability of B lymphocytes to migrate into B cell areas.
Gunn, M.D. et al. (1998) Nature, 391:799.
Legler, D.F. et al. (1998) J. Exp. Med. 187:655.
Forster, R. et al. (1996) Cell 87:1037.
Entrez Gene IDs:
10563 (Human); 55985 (Mouse)
ANGIE; ANGIE2; B cell-attracting chemokine 1; B lymphocyte chemoattractant; BCA1; BCA-1; BCA1B-cell chemoattractant; BCA-1CXC chemokine BLC; B-cell-homing chemokine (ligand for Burkitt's lymphoma receptor-1); BLC; BLCSmall-inducible cytokine B13; BLR1L; B-lymphocyte chemoattractant; chemokine (C-X-C motif) ligand 13 (B-cell chemoattractant); chemokine (C-X-C motif) ligand 13; C-X-C motif chemokine 13; CXCL13; SCYB13B-cell-attracting chemokine 1; small inducible cytokine B subfamily (Cys-X-Cys motif), member 13 (B-cellchemoattractant)
R&D Systems personnel manually curate a database that contains references using R&D Systems products.
The data collected includes not only links to publications in PubMed,
but also provides information about sample types, species, and experimental conditions.
CXCR5(+) T helper cells mediate protective immunity against tuberculosis. Authors: Slight S, Rangel-Moreno J, Gopal R, Lin Y, Fallert Junecko B, Mehra S, Selman M, Becerril-Villanueva E, Baquera-Heredia J, Pavon L, Kaushal D, Reinhart T, Randall T, Khader S J Clin Invest, 2013;123(2):712-26. Species: Human Sample Type: Whole Tissue Application: IHC Paraffin-embedded
Thymic alterations in GM2 gangliosidoses model mice. Authors: Kanzaki S, Yamaguchi A, Yamaguchi K, Kojima Y, Suzuki K, Koumitsu N, Nagashima Y, Nagahama K, Ehara M, Hirayasu Y, Ryo A, Aoki I, Yamanaka S PLoS ONE, 2010;5(8):. Species: Mouse Sample Type: Whole Tissue Application: IHC Frozen
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