Date published: 2026-4-1

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Macrophage Marker Antibody (MAC387): sc-66204

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Datasheets
  • Macrophage Marker Antibody (MAC387) is a mouse monoclonal IgG1 κ Macrophage Marker antibody, cited in 24 publications, provided at 200 µg/ml
  • raised against peripheral blood monocyte components of human origin
  • Macrophage Marker Antibody (MAC387) is recommended for detection of macrophages of mouse, rat and human origin by WB, IP, IF, IHC(P), FCM and ELISA
  • Anti-Macrophage Marker Antibody (MAC387) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • At present, we have not yet completed the identification of the preferred secondary detection reagent(s) for Macrophage Marker Antibody (MAC387). This work is in progress.
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Macrophage Marker Antibody (MAC387) is a mouse monoclonal IgG1 kappa light chain antibody that detects Macrophage Marker protein in mouse, rat, and human samples by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), flow cytometry (FCM), and enzyme-linked immunosorbent assay (ELISA). Anti-Macrophage Marker antibody (MAC387) is available in non-conjugated form and conjugated to agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® dyes, offering flexibility for various experimental applications. Macrophage Marker protein (MAC387) plays a key role in immune system function, specifically in pathogen and debris identification and clearance, which maintains tissue homeostasis and triggers immune responses. Macrophages expressing Macrophage Marker protein develop from circulating monocytes and reside in tissues as primary infection defenders. Macrophage Marker protein enables rapid pathogen phagocytosis and degradation without prior sensitization, making this protein essential for innate immunity against various infectious agents. Macrophage Marker protein interactions with specific signaling molecules enhance communication between immune cells, coordinating immune responses and highlighting this protein′s significance in both innate immunity and overall organism health.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

Macrophage Marker Antibody (MAC387) References:

  1. Human osteoblast-like cells phagocytose metal particles and express the macrophage marker CD68 in vitro.  |  Heinemann, DE., et al. 2000. J Bone Joint Surg Br. 82: 283-9. PMID: 10755442
  2. Salmonella enterica serovar Pullorum persists in splenic macrophages and in the reproductive tract during persistent, disease-free carriage in chickens.  |  Wigley, P., et al. 2001. Infect Immun. 69: 7873-9. PMID: 11705970
  3. Expression of the fibroblast/macrophage marker 1B10 by spindle cells in Kaposi's sarcoma lesions and by Kaposi's sarcoma-derived tumor cells.  |  Simonart, T., et al. 2002. J Cutan Pathol. 29: 72-8. PMID: 12150136
  4. Monocyte and macrophage heterogeneity.  |  Gordon, S. and Taylor, PR. 2005. Nat Rev Immunol. 5: 953-64. PMID: 16322748
  5. The mononuclear phagocyte system.  |  Hume, DA. 2006. Curr Opin Immunol. 18: 49-53. PMID: 16338128
  6. Regulation of osteoclast differentiation.  |  Roodman, GD. 2006. Ann N Y Acad Sci. 1068: 100-9. PMID: 16831910
  7. Heterogeneity of human peripheral blood eosinophil-type colonies: evidence for a common basophil-eosinophil progenitor.  |  Denburg, JA., et al. 1985. Blood. 66: 312-8. PMID: 2410064
  8. Production of phagocytosis-inducing factor and expression of 4B4 antigen by cloned human T cells before and after transformation with HTLV-I.  |  Margolick, JB., et al. 1988. Cell Immunol. 111: 196-203. PMID: 2827893
  9. The immunological events leading to the 'in vitro' response to PPD.  |  Scordamaglia, A., et al. 1987. Allergol Immunopathol (Madr). 15: 83-7. PMID: 3113220
  10. Immunohistochemical characterisation of macrophages in human liver and gastrointestinal tract: expression of CD4, HLA-DR, OKM1, and the mature macrophage marker 25F9 in normal and diseased tissue.  |  Hume, DA., et al. 1987. J Leukoc Biol. 42: 474-84. PMID: 3500252
  11. An immunohistochemical study of IgG, complement C3, collagen type III and macrophage-marker Ki-M7 in epiretinal membranes.  |  Shi, Y., et al. 1996. Yan Ke Xue Bao. 12: 10-4. PMID: 9275730
  12. Characterisation of chicken monocytes, macrophages and interdigitating cells by the monoclonal antibody KUL01.  |  Mast, J., et al. 1998. Vet Immunol Immunopathol. 61: 343-57. PMID: 9613446

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Macrophage Marker Antibody (MAC387)

sc-66204
200 µg/ml
$322.00

Macrophage Marker Antibody (MAC387) AC

sc-66204 AC
500 µg/ml, 25% agarose
$424.00

Macrophage Marker Antibody (MAC387) HRP

sc-66204 HRP
200 µg/ml
$322.00

Macrophage Marker Antibody (MAC387) FITC

sc-66204 FITC
200 µg/ml
$336.00

Macrophage Marker Antibody (MAC387) PE

sc-66204 PE
200 µg/ml
$349.00

Macrophage Marker Antibody (MAC387) Alexa Fluor® 488

sc-66204 AF488
200 µg/ml
$364.00

Macrophage Marker Antibody (MAC387) Alexa Fluor® 546

sc-66204 AF546
200 µg/ml
$364.00

Macrophage Marker Antibody (MAC387) Alexa Fluor® 594

sc-66204 AF594
200 µg/ml
$364.00

Macrophage Marker Antibody (MAC387) Alexa Fluor® 647

sc-66204 AF647
200 µg/ml
$364.00

Macrophage Marker Antibody (MAC387) Alexa Fluor® 680

sc-66204 AF680
200 µg/ml
$364.00

Macrophage Marker Antibody (MAC387) Alexa Fluor® 790

sc-66204 AF790
200 µg/ml
$364.00

Dose this antibody stain also microglia?

Asked by: Hadas
Thank you for your question. Please contact your local distributor or technical service for further assistance.
Answered by: Dallas Tech Service
Date published: 2021-04-07

Does this antibody stain all macrophages, meaning both M1 and M2? Thank you very much

Asked by: Ioannis
Thank you for your question. This Macrophage Marker Antibody (MAC387): sc-66204 does not stain all macrophages, but a subset of macrophages (PMID: 3309045).
Answered by: Technical Support
Date published: 2024-03-14

When probing tissues with this antibody, is it important that the tissues first be perfused and then post-fixed before embedding in OCT, or can I harvest the tissue, immediately snap-freeze in OCT, and then post-fix after cutting the tissue?

Asked by: nhamlin
Thank you for your question. Frozen tissue blocks may be stored at -70° C until ready for sectioning. Thaw slides at room temperature prior to fixing and staining. A link to our recommended protocol is provided below as a reference. https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2017-08-18

is the marker on the cell surface? thanks.

Asked by: RChu
Thank you for your question This clone recognizes an an intracytoplasmic epitope expressed by granulocytes, monocytes and by tissue macrophages. If you have any further questions, please contact Technical Service by phone, (800)-457-3801 option 2, email <scbt@scbt.com>, or by live chat directly on our website, www.scbt.com.
Answered by: Tech Service
Date published: 2017-06-23

Does this ab distinguish between suspension U937 cells and U937s that have been differentiated into macrophages? Thanks

Asked by: Ms Lisa
Thank you for your question. We are not aware of any publications citing use of our Macrophage Marker Antibody (MAC387): sc-66204 in U-937 cells so we can not answer this question. The MAC387 clone recognises the L1 or Calprotectin molecule, an intracytoplasmic antigen comprising of a 12kD alpha chain and a 14kD beta chain expressed by granulocytes, monocytes and by tissue macrophages.
Answered by: Technical Support
Date published: 2018-10-18

what is the kDa of this product sc-66204?

Asked by: Ambika
Thank you for your question. This Macrophage Marker Antibody (MAC387) is a mouse monoclonal recommended for detection of macrophages of mouse, rat and human origin. There is no standard expected molecular weight to be observed in kDa when using this antibody in Western blot, because the antibody does not detect a specific protein of a single size. Instead, it detects an antigen present in all macrophages.
Answered by: Technical Support
Date published: 2022-07-19

What is the recommended secondary reagent to be used with this mouse monoclonal primary?

Asked by: jerojero
We recommend using one our exclusive Mouse IgG Binding Proteins as a secondary detection reagent. A complete list of available binding proteins is available on our website here: https://www.scbt.com/scbt/browse/support-products-mouse-igg-binding-proteins/_/N-ecrety
Answered by: Technical Support 9
Date published: 2017-01-24
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Rated 5 out of 5 by from very good antibodyI bought this antibody use for pig and rat tissue cyosections immunofluorescence stain. We got good result.
Date published: 2017-05-19
Rated 4 out of 5 by from positive cells in ducksWe detected positive cells (green signal in the picture; presumably macrophages) by IF in cryo-sections of nasal mucosa of ducks infected by the neuropathogenic schistosome Trichobilharzia regenti. Antibody dilution 1:100.
Date published: 2017-03-07
Rated 5 out of 5 by from Excellent Macrophage Marker Antibody!There are many clones to choose from as Macrophage Markers, but the MAC387 clone is proven to be versatile for many applications including WB, IF, IHC(P) and FCM. And is also proven to be reactive with a broad range of species.
Date published: 2017-01-05
Rated 5 out of 5 by from PerfectGot good results when used with the mouse retina section slide for immunohistochemistry .
Date published: 2016-12-11
Rated 5 out of 5 by from This antibody was used in a publication onThis antibody was used in a publication on rat RGCs - SCBT Publication Review
Date published: 2015-01-28
Rated 5 out of 5 by from IF publishable data with rat skeletal muscleIF publishable data with rat skeletal muscle - SCBT Publication Review
Date published: 2014-02-02
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Macrophage Marker Antibody (MAC387) is rated 4.8 out of 5 by 6.
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