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Flow cytometryAntibody data
- Antibody Data
- Antigen structure
- References [3]
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- Validations
- Flow cytometry [2]
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- Product number
- 17-3079-42 - Provider product page
- Provider
- Invitrogen Antibodies
- Product name
- CD307d (FcRL4) Monoclonal Antibody (413D12), APC, eBioscience™
- Antibody type
- Monoclonal
- Antigen
- Other
- Description
- Description: The 413D12 monoclonal antibody reacts with human CD307d, which is also known as FcRL4, Fc receptor-like 4, FcRH4, IRTA4, or IGFP2. CD307d is an inhibitory receptor that is highly expressed on a subset of memory B cells resident in epithelial tissues and marginal zones of mucosal lymphoid tissues such as tonsils. CD307d has been shown to recruit the phosphatase SHP-1, thereby acting as an inhibitory receptor in B cells. CD307d is homologous to FcgammaRI and specifically binds IgA. To date, CD307d is the only known inhibitory receptor for IgA. Expression of CD307d is increased on memory B cells from patients with chronic infections such as HIV, suggesting that enhanced expression of inhibitory receptors, such as CD307d, may contribute to the inefficiency of antibody responses against HIV.
- Antibody clone number
- 413D12
- Concentration
- 5 µL/Test
Submitted references Cutting edge: human FcRL4 and FcRL5 are receptors for IgA and IgG.
FcRL4 acts as an adaptive to innate molecular switch dampening BCR signaling and enhancing TLR signaling.
Discriminating gene expression profiles of memory B cell subpopulations.
Wilson TJ, Fuchs A, Colonna M
Journal of immunology (Baltimore, Md. : 1950) 2012 May 15;188(10):4741-5
Journal of immunology (Baltimore, Md. : 1950) 2012 May 15;188(10):4741-5
FcRL4 acts as an adaptive to innate molecular switch dampening BCR signaling and enhancing TLR signaling.
Sohn HW, Krueger PD, Davis RS, Pierce SK
Blood 2011 Dec 8;118(24):6332-41
Blood 2011 Dec 8;118(24):6332-41
Discriminating gene expression profiles of memory B cell subpopulations.
Ehrhardt GR, Hijikata A, Kitamura H, Ohara O, Wang JY, Cooper MD
The Journal of experimental medicine 2008 Aug 4;205(8):1807-17
The Journal of experimental medicine 2008 Aug 4;205(8):1807-17
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Supportive validation
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- Normal human peripheral blood cells were unstimulated (left) or stimulated overnight with Human CD40 Ligand Recombinant Protein, Human IL-2 Recombinant Protein, and CpG 2006 (right). Cells were then stained with CD20 Monoclonal Antibody, FITC (Product # 11-0209-42) and CD307d (FcRL4) Monoclonal Antibody, APC. Viable cells in the lymphocyte gate were used for analysis, as determined by Fixable Viability Dye eFluor 450 (Product # 65-0863-18).
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- 293T cells were transiently transfected with CD307d (FcRL4) vector and stained with Mouse IgG2b kappa Isotype Control, APC (Product # 17-4732-81) (blue histogram) or CD307d (FcRL4) Monoclonal Antibody, APC (purple histogram). Viable cells were used for analysis, as determined by Fixable Viability Dye eFluor 450 (Product # 65-0863-18)
Supportive validation
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- NULL
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- NULL
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- NULL
- Submitted by
- Invitrogen Antibodies (provider)
- Main image
- Experimental details
- Figure 5. RUNX1 responsiveness of the FCRL4 gene promoter. (A) Analysis of the putative promoter sequence of the FCRL4 gene. Locations are indicated for potential RUNX (open circles) and SOX5 (closed triangle) binding sites. (B) Luciferase reporter gene studies on transiently transfected 293T cells. Cells were transfected with the putative promoter of the FCRL4 gene controlling expression of the luciferase reporter gene and expression vectors containing the indicated transcription factors. RUNX2 Delta5 and RUNX2 Delta5,7 are splice isoforms that lack exon 5 and exons 5 and 7, respectively (see also Fig. S1, available at http://www.jem.org/cgi/content/full/jem.20072682/DC1 ). Values represent mean +- SD ( n = 5). (C) ChIP assay of RUNX1 binding in FACS-sorted FCRL4 + and FCRL4 - B Mem cells. Positions of the amplified PCR fragments are indicated by closed rectangles in A. Open bars indicate signals obtained from FCRL4 + cells, and shaded bars indicate signals obtained from FCRL4 - cells. All values were normalized to the PCR signal obtained from control immunoprecipitates (anti-SHP-1), as well as to unrelated, nonspecifically copurified DNA (CCR4). Values represent mean +- SEM ( n = 5). Statistical significance of P < 0.05 is indicated by an asterisk.
