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PerCP Mouse IgG1 κ Isotype Control
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BD Pharmingen™
Mouse BALB/c IgG1, κ
Flow cytometry, Isotype control (Routinely Tested)
0.2 mg/ml
Aqueous buffered solution containing ≤0.09% sodium azide.

Preparation and Storage

The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated with PerCP under optimum conditions, and unconjugated antibody and free PerCP were removed. Storage of PerCP conjugates in unoptimized diluent is not recommended and may result in loss of signal intensity. Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.


An isotype control should be used at the same concentration as the antibody of interest (e.g., ≤ 1 µg/million cells for flow cytometry).  We recommend PerCP-conjugated mouse IgG1 κ mAb MOPC-21 (Cat. No. 559425) for immunofluorescent staining of non-human primate cells.

For tandem conjugates incorporating PerCP (e.g., PerCP-Cy5.5), the excitation and emission properties of PerCP and the kinetics of energy exchange between the fluorochromes of the tandem dye limit their effectiveness on high-speed and/or sorting flow cytometers. Therefore, for third-color flow-cytometric analysis using . 25-mW laser power, we recommend PE-Cy5 (formerly BD Cy-Chrome.).conjugated reagents (e.g., Cat. no. 550618).

Product Notices

  1. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
  2. Please refer to for technical protocols.
  3. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at
  4. PerCP is a photosynthetic accessory pigment from Glenodinium species of dinoflagellates, which is excited by the 488-nm light of an Argon ion laser and fluoresces at 675 nm. Therefore, PerCP-labelled antibodies can be used with FITC- and R-PE–labelled reagents in most single-laser flow cytometers with no significant spectral overlap of PerCP fluorescence with that of FITC or R-PE. PerCP has been reported to undergo significant photobleaching, the magnitude of which increases as laser power is increased or beam focus is narrowed. For third-color flow¬cytometric analysis using ≥25-mW laser power, we recommend PE-Cy5-, PE-Cy7–, or PerCP-Cy5.5-conjugated reagents.
  5. 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.
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The MOPC-31C antibody has unknown specificity. The transplantable plasmacytoma MOPC-31C was induced by intraperitoneal injection of mineral oils into BALB/c mice. It was adapted to continuous cell culture by alternate passage in animals.

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PerCP dye is part of the BD blue family of dyes. This dye is a fluorescent protein complex with an excitation maximum (Ex Max) of 481 nm and an emission maximum (Em Max) at 675 nm. PerCP is designed to be excited by the blue laser (488 nm) and detected using an optical filter centered near 680 nm (e.g., a 695/40 nm bandpass filter). The donor dye can be partially excited by the Violet (405 nm) laser resulting in cross-laser excitation and fluorescence spillover. Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
Blue 488 nm
481 nm
675 nm
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Development References (6)

  1. Afar B, Merrill J, Clark EA. Detection of lymphocyte subsets using three-color/single-laser flow cytometry and the fluorescent dye peridinin chlorophyll-alpha protein. J Clin Immunol. 1991; 11(5):254-261. (Methodology: Flow cytometry). View Reference
  2. Greimers R, Trebak M, Moutschen M, Jacobs N, Boniver J. Improved four-color flow cytometry method using fluo-3 and triple immunofluorescence for analysis of intracellular calcium ion ([Ca2+]i) fluxes among mouse lymph node B- and T-lymphocyte subsets. Cytometry. 1996; 23(3):205-217. (Methodology: Flow cytometry). View Reference
  3. Hay R, Caputo J, Chen TR, Macy M, McClintock P, Reid Y, ed. ATCC. Cell Lines and Hybridomas, Eighth Edition. 1994:75.
  4. Shapiro HM. Practical Flow Cytometry, 3rd Edition. New York: Wiley-Liss, Inc; 1995:280-281.
  5. Sibinovic KH, Potter M, Hoostelaere, Rode B, Wax J, ed. Catalogue of plasmacytomas and other tumors of the lymphoreticular system, 3rd edition. Kensington, Maryland: Litton Bionetics, Inc; 1976:1-33.
  6. Waggoner AS, Ernst LA, Chen CH, Rechtenwald DJ. PE-CY5. A new fluorescent antibody label for three-color flow cytometry with a single laser. Ann N Y Acad Sci. 1993; 677:185-193. (Methodology: Flow cytometry). View Reference
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Please refer to Support Documents for Quality Certificates

Global - Refer to manufacturer's instructions for use and related User Manuals and Technical data sheets before using this products as described

Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims.  Comparisons are not made against non-BD technologies, unless otherwise noted.

For Research Use Only. Not for use in diagnostic or therapeutic procedures.