Invitrogen™ CD185 (CXCR5) Monoclonal Antibody (SPRCL5), PE-eFluor™ 610, eBioscience™

Catalog No.	Quantity
50-112-4871	100 μg

Catalog No. 50-112-4871 Supplier Invitrogen™ Supplier No. 61718582

Description

Rat Monoclonal Antibody

Description: This SPRCL5 monoclonal antibody reacts with mouse CD185. CD185, which is also known as C-X-C chemokine receptor 5 (CXCR5) and Burkitt lymphoma receptor 1 (BLR1), is a seven transmembrane G protein-coupled receptor originally identified in Burkitt's lymphoma. In peripheral blood, CXCR5 is expressed on B cells, CD4+ T cells (but not Th1 or Th2 cells), as well as on a subpopulation of memory (CD45RO+) T cells. CXCR5+ circulating T cells are in a resting state and migrate to the lymph nodes due to expression of CCR7 and CD62L. In tonsil, CXCR5 is expressed on nearly all CD4+ cells along with CD45RO and such activation markers as CD69 and ICOS. Tonsillar CXCR5+ cells have been shown to induce antibody production when co-cultured with B cells, thus supporting their role in providing B cell help. Furthermore, this chemokine receptor plays a critical role in lymphocyte trafficking, in particular T cell migration into the B cell follicles of germinal centers in response to CXCL13, making CXCR5 an established marker of follicular helper T cells. This SPRCL5 does not see a formaldehyde fixed epitope, therefore staining should be done prior to fixation. Applications Reported: This SPRCL5 antibody has been reported for use in flow cytometric analysis. Applications Tested: This SPRCL5 antibody has been tested by flow cytometric analysis of mouse splenocytes. This can be used at less than or equal to 0.5 μg per test. A test is defined as the amount (μg) of antibody tha...

CD185, also known as CXCR5 or Burkitt lymphoma receptor 1 (BLR1), is a seven-transmembrane G protein-coupled receptor in the CXC chemokine receptor family. It plays a crucial role in lymphocyte trafficking, particularly in T cell migration into B cell follicles of germinal centers in response to CXCL13, making it a key marker of follicular helper T cells. In peripheral blood, CXCR5 is expressed on B cells, CD4+ T cells (excluding Th1 and Th2 cells), and a subset of memory (CD45RO+) T cells. These CD185+ T cells are in a resting state and migrate to lymph nodes due to CCR7 and CD62L expression. In tonsils, CD185 is found on nearly all CD4+ cells, along with activation markers like CD69 and ICOS, and can induce antibody production when co-cultured with B cells. CXCR5 is expressed in lymphatic tissues such as lymph node follicles and the spleen, and is also found in human blood and salivary glands, as well as various animal tissues. It is essential for B cell migration and is part of the larger family of G protein-coupled receptors (GPCRs), which have seven membrane-spanning helices and are involved in numerous signaling pathways. GPCRs, including CXCR5, are regulated by various ligands that affect their conformation and signaling through G-proteins and downstream effectors. The regulation of GPCRs, including their deactivation, has significant implications for cellular functions and is a major focus of pharmacological research, leading to the development of drugs like Zyprexa and Claritin for mental health and allergy treatments.

Specifications

• Antigen: CD185 (CXCR5)
• Applications: Flow Cytometry
• Classification: Monoclonal
• Clone: SPRCL5
• Concentration: 0.2 mg/mL
• Conjugate: PE-eFluor 610
• Formulation: PBS with 0.09% sodium azide; pH 7.2
• Gene: CXCR5
• Gene Accession No.: Q04683
• Gene Alias: Blr1; Blr-1; Burkitt lymphoma receptor 1; burkitt lymphoma receptor 1 homolog; Burkitt lymphoma receptor 1, GTP binding protein (chemokine (C-X-C motif) receptor 5); Burkitt lymphoma receptor 1, GTP-binding protein; C Cmotif chemokine; C X C motif chemokine; CC motif chemokine; CCmotif chemokine; CD185; CD185 antigen; chemochine (C-X-C motif) receptor 5; chemokine (C-X-C motif) receptor 5; CXC; C-X-C chemokine receptor type 5; CXC motif chemokine; C-X-C motif chemokine receptor 5; CXCR5; CXC-R5; CXCR-5; EGK_06966; Fusin; Gpcr6; GPR9; HUMSTR; LESTR; MDR15; MDR-15; Monocyte-derived receptor 15; neurolymphatic receptor; NLR
• Gene Symbols: CXCR5
• Host Species: Rat
• Purification Method: Affinity chromatography
• Quantity: 100 μg
• Regulatory Status: RUO
• Primary or Secondary: Primary
• Gene ID (Entrez): 12145
• Target Species: Mouse
• Content And Storage: 4°C, store in dark, DO NOT FREEZE!
• Product Type: Antibody
• Form: Liquid
• Isotype: IgG2a κ

Frequently Asked Questions (FAQs)

I am unable to analyze my cells stained with eFluor Organic Dyes today. What options do I have?

Our options will depend on the samples you are analyzing.

If cell viability is not critical, you can store your stained samples at 4 degrees C or on ice overnight in the dark and analyze the following day.

For samples stained with eFluor organic fluorochromes, we recommend that cells be suspended in 100 uL of Flow Cytometry Staining Buffer (Cat. No. 00-4222) and 100 uL of eBioscience IC Fixation Buffer (Cat. No. 00-8222); samples can be incubated for up to 3 days at 4 degrees C in the dark. Alternatively, the 1-step Fix/Lyse Solution (Cat. No. 00-5333) can be used. This is a great option when working with whole blood but also works for other cell types.

Can the eFluor Organic fluorochromes be used for intracellular staining?

Yes, the eFluor Organic fluorochromes can be used for intracellular staining. The eFluor organic fluorochromes maintain bright signal and require minimal changes in compensation when fixed with eBioscience IC Fixation Buffer (Cat. No. 00-8222-49) and Permeabilization Buffer (Cat. No. 00-8333-56) or 1-step Fix/Lyse Solution (Cat. No. 00-5333-54, 00-5333-57) (as compared to live cells).

What buffers are compatible with the eFluor Organic fluorochromes and eVolve QDots?

The eFluor Organic fluorochromes and eVolve QDots can be used with flow staining buffers containing PBS and protein.

What is the difference between eFluor Organic Dyes and eVolve Qdots?

The eFluor Organic Dyes (eFluor 450, APC-eFluor 780, PerCP-eFluor 710, eFluor 710) are conventional fluorochromes. In contrast, the eVolve line of products are Quantum dots.

Are the eFluor Organic Dyes photo-labile?

As with other fluorochromes, we recommend minimal exposure to light to maintain optimal signal.