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FITC Rat Anti-Mouse CD62L MEL-14 RUO

FITC Rat Anti-Mouse CD62L 

Clone  MEL-14   (RUO)

  • Brand BD Pharmingen™
  • Alternative Name Sell; L-selectin; LECAM-1; LAM-1; Lnhr; Ly-22; Ly-m22; Lyam-1
  • Concentration 0.5 mg/ml
  • Isotype Rat F344, also known as Fischer, CDF IgG2a, κ
  • Reactivity Mouse (QC Testing) 
  • Application Flow cytometry (Routinely Tested) 
  • Immunogen C3H/eb mouse B lymphoma 38C-13
  • Entrez Gene ID 20343 
  • Storage Buffer Aqueous buffered solution containing ≤0.09% sodium azide.
  • Regulatory Status RUO
Product Details Recommended Assay References

Description

The MEL-14 monoclonal antibody specifically binds to CD62L (L-selectin), a 95 kDa (on neutrophils) or 74 kDa (on lymphocytes) receptor with lectin-like and Epidermal Growth Factor-like domains. In the mouse, L-selectin is detected on most thymocytes, with the highest levels of expression on an immunocompetent subset and a population of dividing progenitor cells, and on peripheral leukocytes, including subsets of B and T lymphocytes, neutrophils, monocytes, and eosinophils. This member of the selectin adhesion molecule family appears to be required for lymphocyte homing to peripheral lymph nodes and to contribute to neutrophil emigration at inflammatory sites. L-selectin is rapidly shed from lymphocytes and neutrophils upon cellular activation; metalloproteinases may mediate the release of CD62L ectodomains from the cell surface. The level of CD62L expression, along with other markers, distinguishes naive, effector, and memory T cells. L-selectin binds to sialytaed oligosaccharide determinants on high endothelial venules (HEV) in peripheral lymph nodes. In vitro studies have demonstrated that CD34, GlyCAM-1, and MAdCAM-1, all recognized by mAb MECA-79 (anti-mouse PNAd Carbohydrate Epitope, Cat. No. 553863), may be ligands for CD62L. MEL-14 mAb blocks in vitro binding of lymphocytes to peripheral lymph node HEV and inhibits in vivo lymphocyte extravasation into peripheral lymph nodes and late stages of leukocyte rolling.

Format
  • Format FITC
  • Excitation Source Blue 488 nm
  • Excitation Max 494 nm
  • Emission Max 520 nm

FITC, fluorescein isothiocyanate, is a fluorochrome with a molecular weight of 389 Da. FITC is sensitive to pH changes and photobleaching. Due to nearly identical excitation and emission properties but different spillover characteristics, FITC and Alexa Fluor® 488 cannot be used simultaneously. FITC is relatively dim and should be reserved for highly expressed markers whenever possible.

Other Formats →

Suggested Companion Products

FITC Rat IgG2a, κ Isotype Control RUO
0.25 mg Cat No: 553929

PE Hamster Anti-Mouse CD3e 145-2C11 RUO
0.1 mg Cat No: 553063

Stain Buffer (FBS) RUO
500 mL Cat No: 554656

Resources & Tools
 Spectrum Viewer  Panel Designer  Spectrum Viewer  Download TDS  Regulatory Document Website
Preparation and Storage

Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with FITC under optimum conditions, and unreacted FITC was removed.

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to www.bdbiosciences.com/pharmingen/protocols for technical protocols.
  3. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
  4. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
  5. An isotype control should be used at the same concentration as the antibody of interest.


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  2. Gallatin WM, Weissman IL, Butcher EC. A cell-surface molecule involved in organ-specific homing of lymphocytes. Nature. 1983; 304(5921):30-34. View reference

  3. Iwabuchi K, Ohgama J, Ogasawara K, et al. Distribution of MEL-14+ cells in various lymphoid tissues. Immunobiology. 1991; 182(2):161-173. View reference

  4. Jung TM, Gallatin WM, Weissman IL, Dailey MO. Down-regulation of homing receptors after T cell activation. J Immunol. 1988; 141(12):4110-4117. View reference

  5. Kishimoto TK, Jutila MA, Berg EL, Butcher EC. Neutrophil Mac-1 and MEL-14 adhesion proteins inversely regulated by chemotactic factors. Science. 1989; 245(4923):1238-1241. View reference

  6. Lanzavecchia A, Sallusto F. Dynamics of T lymphocyte responses: intermediates, effectors, and memory cells. Science. 2000; 290(5489):92-97. View reference

  7. Lewinsohn DM, Bargatze RF, Butcher EC. Leukocyte-endothelial cell recognition: evidence of a common molecular mechanism shared by neutrophils, lymphocytes, and other leukocytes. J Immunol. 1987; 138(12):4313-4321. View reference

  8. Ley K, Bullard DC, Arbones ML, et al. Sequential contribution of L- and P-selectin to leukocyte rolling in vivo. J Exp Med. 1995; 181(2):669-675. View reference

  9. Mobley JL, Dailey MO. Regulation of adhesion molecule expression by CD8 T cells in vivo. I. Differential regulation of gp90MEL-14 (LECAM-1), Pgp-1, LFA-1, and VLA-4 alpha during the differentiation of cytotoxic T lymphocytes induced by allografts. J Immunol. 1992; 148(8):2348-2356. View reference

  10. Peschon JJ, Slack JL, Reddy P, et al. An essential role for ectodomain shedding in mammalian development. Science. 1998; 282(5392):1281-1284. View reference

  11. Pizcueta P, Luscinskas FW. Monoclonal antibody blockade of L-selectin inhibits mononuclear leukocyte recruitment to inflammatory sites in vivo. Am J Pathol. 1994; 145(2):461-469. View reference

  12. Reichert RA, Jerabek L, Gallatin WM, Butcher EC, Weissman IL. Ontogeny of lymphocyte homing receptor expression in the mouse thymus. J Immunol. 1986; 136(10):3535-3542. View reference

  13. Reichert RA, Weissman IL, Butcher EC. Dual immunofluorescence studies of cortisone-induced thymic involution: evidence for a major cortical component to cortisone-resistant thymocytes. J Immunol. 1986; 136(10):3529-3534. View reference

  14. Reichert RA, Weissman IL, Butcher EC. Phenotypic analysis of thymocytes that express homing receptors for peripheral lymph nodes. J Immunol. 1986; 136(10):3521-3528. View reference

  15. Seibold F, Seibold-Schmid B, Cong Y, et al. Regional differences in L-selectin expression in murine intestinal lymphocytes. Gastroenterology. 1998; 114(5):965-974. View reference

  16. Shortman K, Wilson A, Van Ewijk W, Scollay R. Phenotype and localization of thymocytes expressing the homing receptor-associated antigen MEL-14: arguments for the view that most mature thymocytes are located in the medulla. J Immunol. 1987; 138(2):342-351. View reference

  17. Siegelman MH, Cheng IC, Weissman IL, Wakeland EK. The mouse lymph node homing receptor is identical with the lymphocyte cell surface marker Ly-22: role of the EGF domain in endothelial binding. Cell. 1990; 61(4):611-622. View reference

  18. Sprent J, Tough DF. Lymphocyte life-span and memory. Science. 1994; 265(5177):1395-1400. View reference

  19. Vestweber D. Ligand-specificity of the selectins. J Cell Biochem. 1996; 61(4):585-591. View reference

  20. Yang G, Mizuno MT, Hellstrom KE, Chen L. B7-negative versus B7-positive P815 tumor: differential requirements for priming of an antitumor immune response in lymph nodes. J Immunol. 1997; 158(2):851-858. View reference

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